Merge branch 'maint-r14' of super:otp into maint-r14

201 files changed, 3872 insertions, 2009 deletions

diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index a1211bbf0c..b64380e817 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -1,7 +1,7 @@
 dnl
 dnl %CopyrightBegin%
 dnl
-dnl Copyright Ericsson AB 1998-2010. All Rights Reserved.
+dnl Copyright Ericsson AB 1998-2011. All Rights Reserved.
 dnl
 dnl The contents of this file are subject to the Erlang Public License,
 dnl Version 1.1, (the "License"); you may not use this file except in
@@ -1153,7 +1153,7 @@ case "$THR_LIB_NAME" in
 			AO_nop_full();
 			AO_store(&x, (AO_t) 0);
 			z = AO_load(&x);
-			z = AO_compare_and_swap(&x, (AO_t) 0, (AO_t) 1);
+			z = AO_compare_and_swap_full(&x, (AO_t) 0, (AO_t) 1);
 		    ],
 		    [ethr_have_native_atomics=yes
 		     ethr_have_libatomic_ops=yes])
diff --git a/erts/configure.in b/erts/configure.in
index 627f734409..fac07f8b6a 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script. -*-m4-*-
 
 dnl %CopyrightBegin%
 dnl
-dnl Copyright Ericsson AB 1997-2010. All Rights Reserved.
+dnl Copyright Ericsson AB 1997-2011. All Rights Reserved.
 dnl
 dnl The contents of this file are subject to the Erlang Public License,
 dnl Version 1.1, (the "License"); you may not use this file except in
@@ -769,6 +769,7 @@ if test "$enable_halfword_emulator" = "yes"; then
 	if test "$ARCH" = "amd64"; then
 		AC_DEFINE(HALFWORD_HEAP_EMULATOR, [1],
 			  [Define if building a halfword-heap 64bit emulator])
+		ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS halfword"
 		AC_MSG_RESULT([yes])
 	else
 		AC_MSG_ERROR(no; halfword emulator not supported on this architecture)
@@ -1793,7 +1794,7 @@ AC_CHECK_FUNCS([getipnodebyname getipnodebyaddr gethostbyname2])
 
 AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \
 		pread pwrite writev memmove strerror strerror_r strncasecmp \
-		gethrtime localtime_r gmtime_r mmap mremap memcpy mallopt \
+		gethrtime localtime_r gmtime_r inet_pton mmap mremap memcpy mallopt \
 		sbrk _sbrk __sbrk brk _brk __brk \
 		flockfile fstat strlcpy strlcat setsid posix2time setlocale nl_langinfo poll])
 
@@ -2399,9 +2400,15 @@ if test "$cross_compiling" != "yes" && test X${enable_hipe} != Xno; then
   if test -z "$M4"; then
 	enable_hipe=no
    	AC_MSG_NOTICE([HiPE disabled as no valid m4 is found in PATH])
+  elif test "$enable_halfword_emulator" = "yes"; then
+       if test X${enable_hipe} = Xyes; then
+              AC_MSG_ERROR([HiPE can not be combined with halfword emulator (yet)])
+       else		    
+   	      AC_MSG_NOTICE([HiPE auto-disabled on halfword emulator])
+       fi	
   else
   	case "$ARCH-$OPSYS" in
-	    x86-linux|amd64-linux|x86-darwin*|amd64-darwin*|ppc-linux|ppc-darwin|arm-linux|amd64-freebsd|x86-freebsd|x86-sol2|amd64-sol2|ultrasparc-linux)
+	    x86-linux|amd64-linux|x86-darwin*|amd64-darwin*|ppc-linux|ppc64-linux|ppc-darwin|arm-linux|amd64-freebsd|x86-freebsd|x86-sol2|amd64-sol2|ultrasparc-linux)
       		enable_hipe=yes
       		;;	
   	esac
@@ -3517,6 +3524,8 @@ dnl use "PATH/include" and "PATH/lib".
 AC_SUBST(SSL_INCLUDE)
 AC_SUBST(SSL_ROOT)
 AC_SUBST(SSL_LIBDIR)
+AC_SUBST(SSL_CRYPTO_LIBNAME)
+AC_SUBST(SSL_SSL_LIBNAME)
 AC_SUBST(SSL_CC_RUNTIME_LIBRARY_PATH)
 AC_SUBST(SSL_LD_RUNTIME_LIBRARY_PATH)
 AC_SUBST(SSL_DED_LD_RUNTIME_LIBRARY_PATH)
@@ -3660,6 +3669,12 @@ case "$erl_xcomp_without_sysroot-$with_ssl" in
 		urp="uninstall/openssl_is1/inno setup: app path"
 		rp="$wrp$urp"
 		if regtool -q get "$rp" > /dev/null; then
+		   true
+		else
+		   urp="uninstall/openssl (32-bit)_is1/inno setup: app path"
+		   rp="$wrp$urp"
+		fi	
+		if regtool -q get "$rp" > /dev/null; then
 			ssl_install_dir=`regtool -q get "$rp"`
 			# Try hard to get rid of spaces...
 			if cygpath -d "$ssl_install_dir" > /dev/null 2>&1; then
@@ -3674,19 +3689,41 @@ case "$erl_xcomp_without_sysroot-$with_ssl" in
     CRYPTO_APP=crypto
     SSH_APP=ssh
 
-    AC_MSG_CHECKING(for OpenSSL >= 0.9.7 in standard locations) 
+    SSL_CRYPTO_LIBNAME=crypto
+    SSL_SSL_LIBNAME=ssl
+
+    AC_MSG_CHECKING(for OpenSSL >= 0.9.7 in standard locations)
     for rdir in $extra_dir /cygdrive/c/OpenSSL $std_ssl_locations; do
 	dir="$erl_xcomp_sysroot$rdir"
 	if test -f "$erl_xcomp_isysroot$rdir/include/openssl/opensslv.h"; then
 		is_real_ssl=yes
 		SSL_ROOT="$dir"
 		if test "x$MIXED_CYGWIN" = "xyes" ; then
-			if test -f "$dir/lib/VC/ssleay32.lib" || \
-			   test -f "$dir/lib/VC/openssl.lib"; then 
+			if test -f "$dir/lib/VC/libeay32.lib"; then
+				SSL_RUNTIME_LIBDIR="$rdir/lib/VC"
+				SSL_LIBDIR="$dir/lib/VC"
+				SSL_CRYPTO_LIBNAME=libeay32
+				SSL_SSL_LIBNAME=ssleay32
+			elif test -f "$dir/lib/VC/openssl.lib"; then 
 				SSL_RUNTIME_LIBDIR="$rdir/lib/VC"
 				SSL_LIBDIR="$dir/lib/VC"
-			elif test -f "$dir/lib/ssleay32.lib" || \
-			     test -f "$dir/lib/openssl.lib"; then
+			elif test -f $dir/lib/VC/libeay32MD.lib; then
+		            SSL_CRYPTO_LIBNAME=libeay32MD
+		            SSL_SSL_LIBNAME=ssleay32MD
+			    if test "x$enable_dynamic_ssl" = "xno" && \
+	                       test -f  $dir/lib/VC/static/libeay32MD.lib; then
+				  SSL_RUNTIME_LIBDIR="$rdir/lib/VC/static"
+				  SSL_LIBDIR="$dir/lib/VC/static"
+		            else
+			          SSL_RUNTIME_LIBDIR="$rdir/lib/VC"
+				  SSL_LIBDIR="$dir/lib/VC"
+                            fi 
+			elif test -f "$dir/lib/libeay32.lib"; then
+				SSL_RUNTIME_LIBDIR="$rdir/lib"
+				SSL_LIBDIR="$dir/lib"
+				SSL_CRYPTO_LIBNAME=libeay32
+				SSL_CRYPTO_LIBNAME=ssleay32
+			elif test -f "$dir/lib/openssl.lib"; then
 				SSL_RUNTIME_LIBDIR="$rdir/lib"
 				SSL_LIBDIR="$dir/lib"
 			else
@@ -3846,8 +3883,32 @@ dnl		so it is - be adoptable
        AC_MSG_ERROR(Invalid path to option --with-ssl=PATH)
     fi
     SSL_ROOT="$with_ssl"
+    SSL_CRYPTO_LIBNAME=crypto
+    SSL_SSL_LIBNAME=ssl
     if test "x$MIXED_CYGWIN" = "xyes" && test -d "$with_ssl/lib/VC"; then
-	SSL_LIBDIR="$with_ssl/lib/VC"
+	if test -f "$with_ssl/lib/VC/libeay32.lib"; then
+	    SSL_LIBDIR="$with_ssl/lib/VC"
+	    SSL_CRYPTO_LIBNAME=libeay32
+	    SSL_SSL_LIBNAME=ssleay32
+	elif test -f "$with_ssl/lib/VC/openssl.lib"; then 
+	    SSL_LIBDIR="$with_ssl/lib/VC"
+	elif test -f $with_ssl/lib/VC/libeay32MD.lib; then
+	    SSL_CRYPTO_LIBNAME=libeay32MD
+            SSL_SSL_LIBNAME=ssleay32MD
+	    if test "x$enable_dynamic_ssl" = "xno" && \
+	       test -f  $with_ssl/lib/VC/static/libeay32MD.lib; then
+		SSL_LIBDIR="$with_ssl/lib/VC/static"
+	    else
+		SSL_LIBDIR="$with_ssl/lib/VC"
+            fi 
+	elif test -f "$with_ssl/lib/libeay32.lib"; then
+	    SSL_LIBDIR="$with_ssl/lib"
+	    SSL_CRYPTO_LIBNAME=libeay32
+	    SSL_CRYPTO_LIBNAME=ssleay32
+	else
+	    # This probably wont work, but that's what the user said, so...
+	    SSL_LIBDIR="$with_ssl/lib"
+	fi
     elif test "x$ac_cv_sizeof_void_p" = "x8"; then
 	if test -f "$with_ssl/lib64/libcrypto.a"; then
 		SSL_LIBDIR="$with_ssl/lib64"
diff --git a/erts/doc/src/driver.xml b/erts/doc/src/driver.xml
index db455312ec..9f246c4a6c 100644
--- a/erts/doc/src/driver.xml
+++ b/erts/doc/src/driver.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2001</year><year>2010</year>
+      <year>2001</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -63,7 +63,8 @@
     <p>This is a simple driver for accessing a postgres
       database using the libpq C client library. Postgres
       is used because it's free and open source. For information
-      on postgres, refer to the website www.postgres.org.</p>
+      on postgres, refer to the website
+      <url href="http://www.postgres.org">www.postgres.org</url>.</p>
     <p>The driver is synchronous, it uses the synchronous calls of
       the client library. This is only for simplicity, and is
       generally not good, since it will
@@ -210,7 +211,7 @@ static void stop(ErlDrvData drv_data)
       input data is a string paramater for <c><![CDATA[connect]]></c> and
       <c><![CDATA[select]]></c>. The returned data consists of Erlang terms.</p>
     <p>The functions <c><![CDATA[get_s]]></c> and <c><![CDATA[ei_x_to_new_binary]]></c> are
-      utilities that is used to make the code shorter. <c><![CDATA[get_s]]></c>
+      utilities that are used to make the code shorter. <c><![CDATA[get_s]]></c>
       duplicates the string and zero-terminates it, since the
       postgres client library wants that. <c><![CDATA[ei_x_to_new_binary]]></c>
       takes an <c><![CDATA[ei_x_buff]]></c> buffer and allocates a binary and
@@ -244,7 +245,7 @@ static int control(ErlDrvData drv_data, unsigned int command, char *buf,
     return r;
 }
     ]]></code>
-    <p>In <c><![CDATA[do_connect]]></c> is where we log in to the database. If the connection
+    <p><c><![CDATA[do_connect]]></c> is where we log in to the database. If the connection
       was successful we store the connection handle in our driver
       data, and return ok. Otherwise, we return the error message
       from postgres, and store <c><![CDATA[NULL]]></c> in the driver data.</p>
@@ -264,7 +265,7 @@ static int do_connect(const char *s, our_data_t* data, ei_x_buff* x)
 }
     ]]></code>
     <p>If we are connected (if the connection handle is not <c><![CDATA[NULL]]></c>),
-      we log out from the database. We need to check if a we should
+      we log out from the database. We need to check if we should
       encode an ok, since we might get here from the <c><![CDATA[stop]]></c>
       function, which doesn't return data to the emulator.</p>
     <code type="none"><![CDATA[
@@ -279,7 +280,7 @@ static int do_disconnect(our_data_t* data, ei_x_buff* x)
     return 0;
 }
     ]]></code>
-    <p>We execute a query and encodes the result. Encoding is done
+    <p>We execute a query and encode the result. Encoding is done
       in another C module, <c><![CDATA[pg_encode.c]]></c> which is also provided
       as sample code.</p>
     <code type="none"><![CDATA[
@@ -291,7 +292,7 @@ static int do_select(const char* s, our_data_t* data, ei_x_buff* x)
     return 0;
 }
     ]]></code>
-    <p>Here we simply checks the result from postgres, and
+    <p>Here we simply check the result from postgres, and
       if it's data we encode it as lists of lists with
       column data. Everything from postgres is C strings,
       so we just use <c><![CDATA[ei_x_encode_string]]></c> to send
@@ -392,7 +393,7 @@ disconnect(Port) ->
 select(Port, Query) ->
     binary_to_term(port_control(Port, ?DRV_SELECT, Query)).
     ]]></code>
-    <p>The api is simple: <c><![CDATA[connect/1]]></c> loads the driver, opens it
+    <p>The API is simple: <c><![CDATA[connect/1]]></c> loads the driver, opens it
       and logs on to the database, returning the Erlang port
       if successful, <c><![CDATA[select/2]]></c> sends a query to the driver,
       and returns the result, <c><![CDATA[disconnect/1]]></c> closes the
@@ -417,7 +418,7 @@ select(Port, Query) ->
     <p>Sometimes database queries can take long time to
       complete, in our <c><![CDATA[pg_sync]]></c> driver, the emulator
       halts while the driver is doing its job. This is
-      often not acceptable, since no other Erlang processes
+      often not acceptable, since no other Erlang process
       gets a chance to do anything. To improve on our
       postgres driver, we reimplement it using the asynchronous
       calls in LibPQ.</p>
@@ -472,7 +473,7 @@ typedef struct our_data_t {
       whether the driver is waiting for a connection or waiting
       for the result of a query. (This is needed since the entry
       <c><![CDATA[ready_io]]></c> will be called both when connecting and
-      when there is query result.)</p>
+      when there is a query result.)</p>
     <code type="none"><![CDATA[
 static int do_connect(const char *s, our_data_t* data)
 {
@@ -571,7 +572,7 @@ static void ready_io(ErlDrvData drv_data, ErlDrvEvent event)
       connection is successful, or error if it's not. If the
       connection is not yet established, we simply return; <c><![CDATA[ready_io]]></c>
       will be called again.</p>
-    <p>If we have result from a connect, indicated that we have data in
+    <p>If we have a result from a connect, indicated by having data in
       the <c><![CDATA[x]]></c> buffer, we no longer need to select on
       output (<c><![CDATA[ready_output]]></c>), so we remove this by calling
       <c><![CDATA[driver_select]]></c>.</p>
@@ -630,9 +631,9 @@ return_port_data(Port) ->
       message queue. The function <c><![CDATA[return_port_data]]></c> above
       receives data from the port. Since the data is in
       binary format, we use <c><![CDATA[binary_to_term/1]]></c> to convert
-      it to Erlang term. Note that the driver is opened in
-      binary mode, <c><![CDATA[open_port/2]]></c> is called with the option
-      <c><![CDATA[[binary]]]></c>. This means that data sent from the driver
+      it to an Erlang term. Note that the driver is opened in
+      binary mode (<c><![CDATA[open_port/2]]></c> is called with the option
+      <c><![CDATA[[binary]]]></c>). This means that data sent from the driver
       to the emulator is sent as binaries. Without the <c><![CDATA[binary]]></c>
       option, they would have been lists of integers.</p>
   </section>
@@ -646,15 +647,15 @@ return_port_data(Port) ->
       of a list of integers. For large lists (more than 100000
       elements), this will take some time, so we will perform this
       as an asynchronous task.</p>
-    <p>The asynchronous api for drivers are quite complicated. First
+    <p>The asynchronous API for drivers is quite complicated. First
       of all, the work must be prepared. In our example we do this
       in <c><![CDATA[output]]></c>. We could have used <c><![CDATA[control]]></c> just as well,
       but we want some variation in our examples. In our driver, we allocate
-      a structure that contains all needed for the asynchronous task
+      a structure that contains anything that's needed for the asynchronous task
       to do the work. This is done in the main emulator thread.
       Then the asynchronous function is called from a driver thread,
-      separate from the main emulator thread. Note that the driver-
-      functions are not reentrant, so they shouldn't be used.
+      separate from the main emulator thread. Note that the driver-functions
+      are not reentrant, so they shouldn't be used.
       Finally, after the function is completed, the driver callback
       <c><![CDATA[ready_async]]></c> is called from the main emulator thread,
       this is where we return the result to Erlang. (We can't
@@ -692,7 +693,7 @@ static ErlDrvEntry next_perm_driver_entry = {
       be sent later from the <c><![CDATA[ready_async]]></c> call-back.</p>
     <p>The <c><![CDATA[async_data]]></c> will be passed to the <c><![CDATA[do_perm]]></c> function.
       We do not use a <c><![CDATA[async_free]]></c> function (the last argument to
-      <c><![CDATA[driver_async]]></c>, it's only used if the task is cancelled
+      <c><![CDATA[driver_async]]></c>), it's only used if the task is cancelled
       programmatically.</p>
     <code type="none"><![CDATA[
 struct our_async_data {
@@ -743,7 +744,7 @@ static void ready_async(ErlDrvData drv_data, ErlDrvThreadData async_data)
     ErlDrvPort port = reinterpret_cast<ErlDrvPort>(drv_data);
     our_async_data* d = reinterpret_cast<our_async_data*>(async_data);
     int n = d->data.size(), result_n = n*2 + 3;
-    ErlDrvTermData* result = new ErlDrvTermData[result_n], * rp = result;
+    ErlDrvTermData *result = new ErlDrvTermData[result_n], *rp = result;
     for (vector<int>::iterator i = d->data.begin();
          i != d->data.end(); ++i) {
         *rp++ = ERL_DRV_INT;
diff --git a/erts/doc/src/driver_entry.xml b/erts/doc/src/driver_entry.xml
index dfddbb18ea..8bdd154cb9 100644
--- a/erts/doc/src/driver_entry.xml
+++ b/erts/doc/src/driver_entry.xml
@@ -121,7 +121,7 @@ typedef struct erl_drv_entry {
                                    the port */
     void (*ready_input)(ErlDrvData drv_data, ErlDrvEvent event); 
                                 /* called when we have input from one of 
-                                   the driver's handles) */
+                                   the driver's handles */
     void (*ready_output)(ErlDrvData drv_data, ErlDrvEvent event);  
                                 /* called when output is possible to one of 
                                    the driver's handles */
@@ -133,7 +133,7 @@ typedef struct erl_drv_entry {
     int (*control)(ErlDrvData drv_data, unsigned int command, char *buf, 
                    int len, char **rbuf, int rlen); 
                                 /* "ioctl" for drivers - invoked by 
-                                   port_control/3) */
+                                   port_control/3 */
     void (*timeout)(ErlDrvData drv_data);        /* Handling of timeout in driver */
     void (*outputv)(ErlDrvData drv_data, ErlIOVec *ev);
                                 /* called when we have output from erlang
@@ -146,7 +146,7 @@ typedef struct erl_drv_entry {
                                    before 'stop' can be called */
     int (*call)(ErlDrvData drv_data, unsigned int command, char *buf, 
                    int len, char **rbuf, int rlen, unsigned int *flags); 
-                                /* Works mostly like 'control', a syncronous
+                                /* Works mostly like 'control', a synchronous
                                    call into the driver. */
     void (*event)(ErlDrvData drv_data, ErlDrvEvent event,
                   ErlDrvEventData event_data);
diff --git a/erts/doc/src/epmd.xml b/erts/doc/src/epmd.xml
index 474230cb38..411e627c85 100644
--- a/erts/doc/src/epmd.xml
+++ b/erts/doc/src/epmd.xml
@@ -4,7 +4,7 @@
 <comref>
   <header>
     <copyright>
-      <year>1996</year><year>2010</year>
+      <year>1996</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -116,6 +116,16 @@
 
     <p>These options are available when starting the actual name server. The name server is normally started automatically by the <c>erl</c> command (if not already available), but it can also be started at i.e. system start-up.</p>
     <taglist>
+    <tag><c><![CDATA[-address List]]></c></tag>
+    <item>
+    <p>Let this instance of <c>epmd</c> listen only on the
+      comma-separated list of IP addresses and on the loopback address
+      (which is implicitely added to the list if it has not been
+      specified). This can also be set using the
+      <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable, see the
+      section <seealso marker="#environment_variables">Environment
+      variables</seealso> below.</p>
+    </item>
     <tag><c><![CDATA[-port No]]></c></tag>
     <item>
       <p>Let this instance of epmd listen to another TCP port than
@@ -228,6 +238,15 @@
     <marker id="environment_variables"></marker>
     <title>Environment variables</title>
     <taglist>
+      <tag><c><![CDATA[ERL_EPMD_ADDRESS]]></c></tag>
+      <item>
+        <p>This environment variable may be set to a comma-separated
+          list of IP addresses, in which case the <c>epmd</c> daemon
+          will listen only on the specified address(es) and on the
+          loopback address (which is implicitely added to the list if it
+          has not been specified). The default behaviour is to listen on
+          all available IP addresses.</p>
+      </item>
       <tag><c><![CDATA[ERL_EPMD_PORT]]></c></tag>
       <item>
         <p>This environment variable can contain the port number epmd will use.
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index a66d273438..514ee5ffaf 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1004,6 +1004,15 @@
 	  add to the code path.
   	  See <seealso marker="kernel:code">code(3)</seealso>.</p>
       </item>
+      <tag><c><![CDATA[ERL_EPMD_ADDRESS]]></c></tag>
+      <item>
+        <p>This environment variable may be set to a comma-separated
+          list of IP addresses, in which case the
+          <seealso marker="epmd">epmd</seealso> daemon
+          will listen only on the specified address(es) and on the
+          loopback address (which is implicitely added to the list if it
+          has not been specified).</p>
+      </item>
       <tag><c><![CDATA[ERL_EPMD_PORT]]></c></tag>
       <item>
         <p>This environment variable can contain the port number to use when
@@ -1016,6 +1025,49 @@
   </section>
 
   <section>
+    <marker id="configuration"></marker>
+    <title>Configuration</title>
+    <p>The standard Erlang/OTP system can be re-configured to change the default
+       behavior on start-up.</p>
+    <taglist>
+       <tag>The .erlang Start-up File</tag>
+       <item>
+         <p>When Erlang/OTP is started, the system searches for a file named .erlang
+            in the directory where Erlang/OTP is started. If not found, the user's home
+            directory is searched for an .erlang file.</p>
+         <p>If an .erlang file is found, it is assumed to contain valid Erlang expressions.
+            These expressions are evaluated as if they were input to the shell.</p>
+         <p>A typical .erlang file contains a set of search paths, for example:</p>
+    <code type="none"><![CDATA[
+        io:format("executing user profile in HOME/.erlang\n",[]).
+        code:add_path("/home/calvin/test/ebin").
+        code:add_path("/home/hobbes/bigappl-1.2/ebin").
+        io:format(".erlang rc finished\n",[]).
+    ]]></code>
+       </item>
+       <tag>user_default and shell_default</tag>
+       <item>
+         <p>Functions in the shell which are not prefixed by a module name are assumed
+           to be functional objects (Funs), built-in functions (BIFs), or belong to the
+           module user_default or shell_default.</p>
+         <p>To include private shell commands, define them in a module user_default and
+           add the following argument as the first line in the .erlang file.</p>
+    <code type="none"><![CDATA[
+         code:load_abs("..../user_default").
+    ]]></code>
+       </item>
+       <tag>erl</tag>
+       <item>
+         <p>If the contents of .erlang are changed and a private version of
+           user_default is defined, it is possible to customize the Erlang/OTP environment.
+           More powerful changes can be made by supplying command line arguments in the
+           start-up script erl. Refer to erl(1) and <seealso marker="init">init(3)</seealso>
+           for further information.</p>
+       </item>
+    </taglist>
+  </section>
+
+   <section>
     <title>SEE ALSO</title>
     <p><seealso marker="init">init(3)</seealso>,
       <seealso marker="erl_prim_loader">erl_prim_loader(3)</seealso>,
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index 497a2fa01d..2fb03954b6 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -4,7 +4,7 @@
 <cref>
   <header>
     <copyright>
-      <year>2001</year><year>2010</year>
+      <year>2001</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -56,16 +56,16 @@
       instance is connected to an Erlang port. Every port has a port
       owner process. Communication with the port is normally done
       through the port owner process.</p>
-    <p>Most of the functions takes the <c>port</c> handle as an
+    <p>Most of the functions take the <c>port</c> handle as an
       argument. This identifies the driver instance. Note that this
       port handle must be stored by the driver, it is not given when
       the driver is called from the emulator (see
       <seealso marker="driver_entry#emulator">driver_entry</seealso>).</p>
-    <p>Some of the functions takes a parameter of type
+    <p>Some of the functions take a parameter of type
       <c>ErlDrvBinary</c>, a driver binary. It should be both
-      allocated and freed by the caller. Using a binary directly avoid
+      allocated and freed by the caller. Using a binary directly avoids
       one extra copying of data.</p>
-    <p>Many of the output functions has a "header buffer", with
+    <p>Many of the output functions have a "header buffer", with
       <c>hbuf</c> and <c>hlen</c> parameters. This buffer is sent as a
       list before the binary (or list, depending on port mode) that is
       sent. This is convenient when matching on messages received from
@@ -92,7 +92,7 @@
       with SMP support without being rewritten if driver
       level locking is used.</p>
     <note>
-      <p>It is assumed that drivers does not access other drivers. If
+      <p>It is assumed that drivers do not access other drivers. If
         drivers should access each other they have to provide their own
         mechanism for thread safe synchronization. Such "inter driver
         communication" is strongly discouraged.</p>
@@ -113,12 +113,12 @@
         call-backs may be made from different threads.</p>
     </note>
     <p>Most functions in this API are <em>not</em> thread-safe, i.e.,
-      they may <em>not</em> be called from an arbitrary thread. Function
+      they may <em>not</em> be called from an arbitrary thread. Functions
       that are not documented as thread-safe may only be called from
       driver call-backs or function calls descending from a driver
       call-back call. Note that driver call-backs may be called from
       different threads. This, however, is not a problem for any
-      functions in this API, since the emulator have control over
+      function in this API, since the emulator has control over
       these threads.</p>
     <note>
       <p>Functions not explicitly documented as thread-safe are
@@ -155,10 +155,10 @@
           more information.</p>
       </item>
       <tag>Output functions</tag>
-      <item>With the output functions, the driver sends data back
+      <item>With the output functions, the driver sends data back to
        the emulator. They will be received as messages by the port owner
        process, see <c>open_port/2</c>. The vector function and the
-       function taking a driver binary is faster, because that avoid
+       function taking a driver binary are faster, because they avoid
        copying the data buffer. There is also a fast way of sending
        terms from the driver, without going through the binary term
        format.</item>
@@ -193,14 +193,14 @@
 	 use functionality from the POSIX thread API or the Windows
 	 native thread API.
       </p>
-      <p>The Erlang driver thread API only return error codes when it is
+      <p>The Erlang driver thread API only returns error codes when it is
          reasonable to recover from an error condition. If it isn't reasonable
 	 to recover from an error condition, the whole runtime system is
 	 terminated. For example, if a create mutex operation fails, an error
 	 code is returned, but if a lock operation on a mutex fails, the
 	 whole runtime system is terminated.
       </p>
-      <p>Note that there exist no "condition variable wait with timeout" in
+      <p>Note that there exists no "condition variable wait with timeout" in
          the Erlang driver thread API. This is due to issues with
 	 <c>pthread_cond_timedwait()</c>. When the system clock suddenly
 	 is changed, it isn't always guaranteed that you will wake up from
@@ -241,7 +241,7 @@
 	 to give you better error reports.
       </p>
       </item>
-      <tag>Adding / remove drivers</tag>
+      <tag>Adding / removing drivers</tag>
       <item>A driver can add and later remove drivers.</item>
       <tag>Monitoring processes</tag>
       <item>A driver can monitor a process that does not own a port.</item>
@@ -262,7 +262,7 @@
           could, under rare circumstances, mean that drivers have to
           be slightly modified. If so, this will of course be documented.
           <c>ERL_DRV_EXTENDED_MINOR_VERSION</c> will be incremented when
-          new features are added. The runtime system use the minor version
+          new features are added. The runtime system uses the minor version
           of the driver to determine what features to use.
           The runtime system will refuse to load a driver if the major
           versions differ, or if the major versions are equal and the
@@ -273,7 +273,7 @@
           It can, however, not make sure that it isn't incompatible. Therefore,
           when loading a driver that doesn't use the extended driver
           interface, there is a risk that it will be loaded also when
-          the driver is incompatible. When the driver use the extended driver
+          the driver is incompatible. When the driver uses the extended driver
           interface, the emulator can verify that it isn't of an incompatible
           driver version. You are therefore advised to use the extended driver
           interface.</p>
@@ -309,7 +309,7 @@ typedef struct ErlDrvSysInfo {
         <seealso marker="#driver_system_info">driver_system_info()</seealso>
         will write the system information when passed a reference to
         a <c>ErlDrvSysInfo</c> structure. A description of the
-        fields in the structure follow:
+        fields in the structure follows:
       </p>
       <taglist>
         <tag><c>driver_major_version</c></tag>
@@ -347,14 +347,6 @@ typedef struct ErlDrvSysInfo {
         <item>A value <c>!= 0</c> if the runtime system has SMP support;
            otherwise, <c>0</c>.
         </item>
-        <tag><c>thread_support</c></tag>
-        <item>A value <c>!= 0</c> if the runtime system has thread support;
-           otherwise, <c>0</c>.
-        </item>
-        <tag><c>smp_support</c></tag>
-        <item>A value <c>!= 0</c> if the runtime system has SMP support;
-           otherwise, <c>0</c>.
-        </item>
         <tag><c>async_threads</c></tag>
         <item>The number of async threads in the async thread pool used
            by <seealso marker="#driver_async">driver_async()</seealso>
@@ -401,8 +393,8 @@ typedef struct ErlDrvBinary {
             <seealso marker="#driver_binary_dec_refc">driver_binary_dec_refc()</seealso>.</p>
         </note>
         <p>Some driver calls, such as <c>driver_enq_binary</c>,
-          increments the driver reference count, and others, such as
-          <c>driver_deq</c> decrements it.</p>
+          increment the driver reference count, and others, such as
+          <c>driver_deq</c> decrement it.</p>
         <p>Using a driver binary instead of a normal buffer, is often
           faster, since the emulator doesn't need to copy the data,
           only the pointer is used.</p>
@@ -415,7 +407,7 @@ typedef struct ErlDrvBinary {
           <c>driver_outputv</c> calls, and in the queue. Also the
           driver call-back <seealso marker="driver_entry#outputv">outputv</seealso> uses driver
           binaries.</p>
-        <p>If the driver of some reason or another, wants to keep a
+        <p>If the driver for some reason or another, wants to keep a
           driver binary around, in a static variable for instance, the
           reference count should be incremented,
           and the binary can later be freed in the <seealso marker="driver_entry#stop">stop</seealso> call-back, with
@@ -423,7 +415,7 @@ typedef struct ErlDrvBinary {
         <p>Note that since a driver binary is shared by the driver and
           the emulator, a binary received from the emulator or sent to
           the emulator, must not be changed by the driver.</p>
-        <p>From erts version 5.5 (OTP release R11B), orig_bytes is 
+        <p>Since erts version 5.5 (OTP release R11B), orig_bytes is
           guaranteed to be properly aligned for storage of an array of
           doubles (usually 8-byte aligned).</p>
       </item>
@@ -447,7 +439,7 @@ typedef struct ErlIOVec {
   int vsize;
   int size;
   SysIOVec* iov;
-  >ErlDrvBinary** binv;
+  ErlDrvBinary** binv;
 } ErlIOVec;
 </code>
         <p>The I/O vector used by the emulator and drivers, is a list
@@ -495,17 +487,17 @@ typedef struct ErlIOVec {
           Currently, the only port specific data that the emulator
           associates with the port data lock is the driver queue.</p>
         <p>Normally a driver instance does not have a port data lock. If
-          the driver instance want to use a port data lock, it has to
+          the driver instance wants to use a port data lock, it has to
           create the port data lock by calling
           <seealso marker="#driver_pdl_create">driver_pdl_create()</seealso>.
           <em>NOTE</em>: Once the port data lock has been created, every
-          access to data associated with the port data lock have to be done
+          access to data associated with the port data lock has to be done
           while having the port data lock locked. The port data lock is
           locked, and unlocked, respectively, by use of
           <seealso marker="#driver_pdl_lock">driver_pdl_lock()</seealso>, and
           <seealso marker="#driver_pdl_unlock">driver_pdl_unlock()</seealso>.</p>
         <p>A port data lock is reference counted, and when the reference
-          count reach zero, it will be destroyed. The emulator will at
+          count reaches zero, it will be destroyed. The emulator will at
           least increment the reference count once when the lock is
           created and decrement it once when the port associated with
           the lock terminates. The emulator will also increment the
@@ -545,7 +537,7 @@ typedef struct ErlIOVec {
 	</p>
         <taglist>
           <tag>suggested_stack_size</tag>
-          <item>A suggestion, in kilo-words, on how large stack to use. A value less
+          <item>A suggestion, in kilo-words, on how large a stack to use. A value less
 	        than zero means default size.
 	  </item>
         </taglist>
@@ -648,7 +640,7 @@ typedef struct ErlIOVec {
           opened.</p>
         <p>The data is queued in the port owner process' message
           queue. Note that this does not yield to the emulator. (Since
-          the driver and the emulator runs in the same thread.)</p>
+          the driver and the emulator run in the same thread.)</p>
         <p>The parameter <c>buf</c> points to the data to send, and
           <c>len</c> is the number of bytes.</p>
         <p>The return value for all output functions is 0. (Unless the
@@ -749,7 +741,7 @@ typedef struct ErlIOVec {
           function <seealso marker="driver_entry#emulator">timeout</seealso> is called.</p>
         <p>Note that there is only one timer on each driver instance;
           setting a new timer will replace an older one.</p>
-        <p>Return value i 0 (-1 only when the <c>timeout</c> driver
+        <p>Return value is 0 (-1 only when the <c>timeout</c> driver
           function is <c>NULL</c>).</p>
       </desc>
     </func>
@@ -799,20 +791,20 @@ typedef struct ErlIOVec {
           event object must be a socket or pipe (or other object that
           <c>select</c>/<c>poll</c> can use).
           On windows, the Win32 API function <c>WaitForMultipleObjects</c>
-          is used. This places other restriction on the event object.
+          is used. This places other restrictions on the event object.
           Refer to the Win32 SDK documentation.</p>
         <p>The <c>on</c> parameter should be <c>1</c> for setting events
           and <c>0</c> for clearing them.</p>
-        <p>The <c>mode</c> argument is bitwise-or combination of
+        <p>The <c>mode</c> argument is a bitwise-or combination of
           <c>ERL_DRV_READ</c>, <c>ERL_DRV_WRITE</c> and <c>ERL_DRV_USE</c>.
-          The first two specifies whether to wait for read events and/or write
+          The first two specify whether to wait for read events and/or write
           events. A fired read event will call
           <seealso marker="driver_entry#ready_input">ready_input</seealso>
           while a fired write event will call
           <seealso marker="driver_entry#ready_output">ready_output</seealso>.
           </p>
     <note>
-      <p>Some OS (Windows) does not differ between read and write events.
+      <p>Some OS (Windows) do not differentiate between read and write events.
          The call-back for a fired event then only depends on the value of <c>mode</c>.</p>
     </note>
         <p><c>ERL_DRV_USE</c> specifies if we are using the event object or if we want to close it.
@@ -834,9 +826,9 @@ typedef struct ErlIOVec {
          as before. But it is recommended to update them to use <c>ERL_DRV_USE</c> and
          <c>stop_select</c> to make sure that event objects are closed in a safe way.</p>
     </note>           
-        <p>The return value is 0 (Failure, -1, only if the
+        <p>The return value is 0 (failure, -1, only if the
           <c>ready_input</c>/<c>ready_output</c> is
-          <c>NULL</c>.</p>
+          <c>NULL</c>).</p>
       </desc>
     </func>
     <func>
@@ -1076,7 +1068,7 @@ typedef struct ErlIOVec {
           array of <c>SysIOVec</c>s. It also returns the number of
           elements in <c>vlen</c>. This is the only way to get data
           out of the queue.</p>
-        <p>Nothing is remove from the queue by this function, that must be done
+        <p>Nothing is removed from the queue by this function, that must be done
           with <c>driver_deq</c>.</p>
         <p>The returned array is suitable to use with the Unix system
           call <c>writev</c>.</p>
@@ -1209,7 +1201,7 @@ typedef struct ErlIOVec {
       <fsummary>Stop monitoring a process from a driver</fsummary>
       <desc>
         <marker id="driver_demonitor_process"></marker>
-        <p>This function cancels an monitor created earlier. </p>
+        <p>This function cancels a monitor created earlier. </p>
         <p>The function returns 0 if a monitor was removed and &gt; 0
           if the monitor did no longer exist.</p>
       </desc>
@@ -1326,7 +1318,7 @@ typedef struct ErlIOVec {
         <p>This function signals to erlang that the driver has
           encountered an EOF and should be closed, unless the port was
           opened with the <c>eof</c> option, in that case eof is sent
-          to the port. Otherwise, the port is close and an
+          to the port. Otherwise, the port is closed and an
           <c>'EXIT'</c> message is sent to the port owner process.</p>
         <p>The return value is 0.</p>
       </desc>
@@ -1349,8 +1341,8 @@ typedef struct ErlIOVec {
           (<c>driver_failure</c>).</p>
         <p>The driver should fail only when in severe error situations,
           when the driver cannot possibly keep open, for instance
-          buffer allocation gets out of memory. Normal errors is more
-          appropriate to handle with sending error codes with
+          buffer allocation gets out of memory. For normal errors
+          it is more appropriate to send error codes with
           <c>driver_output</c>.</p>
         <p>The return value is 0.</p>
       </desc>
@@ -1371,7 +1363,7 @@ typedef struct ErlIOVec {
         <p>This function returns the process id of the process that
 	  made the current call to the driver. The process id can be
 	  used with <c>driver_send_term</c> to send back data to the
-	  caller. <c>driver_caller()</c> only return valid data
+	  caller. <c>driver_caller()</c> only returns valid data
 	  when currently executing in one of the following driver
 	  callbacks:</p>
 	  <taglist>
@@ -1409,7 +1401,7 @@ typedef struct ErlIOVec {
           tuple, the elements are given first, and then the tuple
           term, with a count. Likewise for lists.</p>
         <p>A tuple must be specified with the number of elements. (The
-          elements precedes the <c>ERL_DRV_TUPLE</c> term.)</p>
+          elements precede the <c>ERL_DRV_TUPLE</c> term.)</p>
         <p>A list must be specified with the number of elements,
           including the tail, which is the last term preceding
           <c>ERL_DRV_LIST</c>.</p>
@@ -1518,7 +1510,7 @@ ERL_DRV_EXT2TERM     char *buf, ErlDrvUInt len
     };
     driver_output_term(port, spec, sizeof(spec) / sizeof(spec[0]));
         ]]></code>
-	<p>If you want to pass a binary and doesn't already have the content
+	<p>If you want to pass a binary and don't already have the content
 	of the binary in an <c>ErlDrvBinary</c>, you can benefit from using
 	<c>ERL_DRV_BUF2BINARY</c> instead of creating an <c>ErlDrvBinary</c>
 	via <c>driver_alloc_binary()</c> and then pass the binary via
@@ -1565,7 +1557,7 @@ ERL_DRV_EXT2TERM     char *buf, ErlDrvUInt len
           <em>other</em> processes than the port owner process. The
           <c>receiver</c> parameter specifies the process to receive
           the data.</p>
-        <p>The parameters <c>term</c> and <c>n</c> does the same thing
+        <p>The parameters <c>term</c> and <c>n</c> do the same thing
           as in <seealso marker="#driver_output_term">driver_output_term</seealso>.</p>
         <p>This function is only thread-safe when the emulator with SMP
           support is used.</p>
@@ -1660,7 +1652,7 @@ ERL_DRV_EXT2TERM     char *buf, ErlDrvUInt len
       <desc>
         <marker id="driver_lock_driver"></marker>
         <p>This function locks the driver used by the port <c>port</c>
-          in memory for the rest of the emulator process
+          in memory for the rest of the emulator process'
           lifetime. After this call, the driver behaves as one of Erlang's 
           statically linked in drivers.</p>
       </desc>
@@ -1904,7 +1896,7 @@ ERL_DRV_EXT2TERM     char *buf, ErlDrvUInt len
 		 corresponding to one of the involved thread identifiers
 		 has terminated since the thread identifier was saved,
 		 the result of <c>erl_drv_equal_tids()</c> might not give
-		 expected result.
+		 the expected result.
 	</p></note>
         <p>This function is thread-safe.</p>
       </desc>
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 4bbd4e2a54..cdce4ec0b8 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -688,6 +688,10 @@ typedef enum {
       <fsummary>Determine if a term is an empty list</fsummary>
       <desc><p>Return true if <c>term</c> is an empty list.</p></desc>
     </func>
+    <marker id="enif_is_exception"/><func><name><ret>int</ret><nametext>enif_is_exception(ErlNifEnv* env, ERL_NIF_TERM term)</nametext></name>
+      <fsummary>Determine if a term is an exception</fsummary>
+      <desc><p>Return true if <c>term</c> is an exception.</p></desc>
+    </func>
     <func><name><ret>int</ret><nametext>enif_is_fun(ErlNifEnv* env, ERL_NIF_TERM term)</nametext></name>
       <fsummary>Determine if a term is a fun</fsummary>
       <desc><p>Return true if <c>term</c> is a fun.</p></desc>
@@ -738,7 +742,14 @@ typedef enum {
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_badarg(ErlNifEnv* env)</nametext></name>
       <fsummary>Make a badarg exception.</fsummary>
-      <desc><p>Make a badarg exception to be returned from a NIF.</p></desc>
+      <desc><p>Make a badarg exception to be returned from a NIF, and set
+      an associated exception reason in <c>env</c>. If
+      <c>enif_make_badarg</c> is called, the term it returns <em>must</em>
+      be returned from the function that called it. No other return value
+      is allowed. Also, the term returned from <c>enif_make_badarg</c> may
+      be passed only to
+      <seealso marker="#enif_is_exception">enif_is_exception</seealso> and
+      not to any other NIF API function.</p></desc>
     </func>
     <func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_binary(ErlNifEnv* env, ErlNifBinary* bin)</nametext></name>
       <fsummary>Make a binary term.</fsummary>
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 19f501391f..f98e15cb52 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -2356,6 +2356,14 @@ os_prompt%</pre>
               <seealso marker="tools:instrument">instrument(3)</seealso>
               and/or <seealso marker="erts:erl">erl(1)</seealso>.</p>
           </item>
+          <tag><c>low</c></tag>
+          <item>
+            <p>Only on 64-bit halfword emulator.</p>
+            <p>The total amount of memory allocated in low memory areas
+	      that are restricted to less than 4 Gb even though
+	      the system may have more physical memory.</p>
+	    <p>May be removed in future releases of halfword emulator.</p>
+          </item>
         </taglist>
         <note>
           <p>The <c>system</c> value is not complete. Some allocated
diff --git a/erts/doc/src/init.xml b/erts/doc/src/init.xml
index 33364c709a..b0d0cda4fa 100644
--- a/erts/doc/src/init.xml
+++ b/erts/doc/src/init.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1996</year><year>2009</year>
+      <year>1996</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -67,19 +67,6 @@
       </desc>
     </func>
     <func>
-      <name>get_args() -> [Arg]</name>
-      <fsummary>Get all non-flag command line arguments</fsummary>
-      <type>
-        <v>Arg = atom()</v>
-      </type>
-      <desc>
-        <p>Returns any plain command line arguments as a list of atoms
-          (possibly empty). It is recommended that
-          <c>get_plain_arguments/1</c> is used instead, because of
-          the limited length of atoms.</p>
-      </desc>
-    </func>
-    <func>
       <name>get_argument(Flag) -> {ok, Arg} | error</name>
       <fsummary>Get the values associated with a command line user flag</fsummary>
       <type>
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index f5607945a8..3733fb2db9 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2004</year><year>2010</year>
+      <year>2004</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -30,6 +30,357 @@
   </header>
   <p>This document describes the changes made to the ERTS application.</p>
 
+<section><title>Erts 5.8.4</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>Fix binary and iolist overflow problems. Typically
+	    problems arose in length calculation where the result
+	    would exceed (1 bsl 32 - 1).</p>
+          <p>
+	    Own Id: OTP-9118</p>
+        </item>
+        <item>
+          <p>
+	    Using the old erlang shell (i.e. erl instead on werl) on
+	    windows and doing several init:restart's would eventually
+	    hang the VM. That is no longer the case.</p>
+          <p>
+	    Own Id: OTP-9139</p>
+        </item>
+        <item>
+          <p>
+	    Removed recursive C code when printing Erlang terms to
+	    buffers, avoiding stack overflows that could cause VM to
+	    crash.</p>
+          <p>
+	    Own Id: OTP-9140</p>
+        </item>
+        <item>
+          <p>
+	    The send_timeout option in gen_tcp did not work properly
+	    in active mode or with {active,once} options. This is now
+	    corrected.</p>
+          <p>
+	    Own Id: OTP-9145</p>
+        </item>
+        <item>
+          <p>
+	    Fixed various typos across the documentation (Thanks to
+	    Tuncer Ayaz)</p>
+          <p>
+	    Own Id: OTP-9154</p>
+        </item>
+        <item>
+	    <p>Remove duplicate stack entries which could occur after
+	    calling certain BIFs.</p>
+          <p>
+	    Own Id: OTP-9163</p>
+        </item>
+        <item>
+          <p>
+	    A race when starting two nodes simultaneously using
+	    run_erl has been removed.</p>
+          <p>
+	    Own Id: OTP-9164</p>
+        </item>
+        <item>
+          <p>
+	    Add documentation on .erlang processing back again
+	    (Thanks to Gabor Liptak)</p>
+          <p>
+	    Own Id: OTP-9189</p>
+        </item>
+        <item>
+          <p>
+	    Remove gratuitous paren in driver_entry(Thanks to Tuncer
+	    Ayaz)</p>
+          <p>
+	    Own Id: OTP-9192</p>
+        </item>
+        <item>
+          <p>
+	    Fix some wrong pointer dereferences (Thanks to Cristian
+	    Greco)</p>
+          <p>
+	    Own Id: OTP-9194</p>
+        </item>
+        <item>
+          <p>
+	    erts: Remove unused variables (Thanks to Tuncer Ayaz)</p>
+          <p>
+	    Own Id: OTP-9205</p>
+        </item>
+        <item>
+          <p>
+	    The documentation for <c>init:get_args/0</c> has been
+	    removed. <c>init:get_args/0</c> itself was deprecated in
+	    R9C and removed in R12B. (Thanks to Eric Pailleau.)</p>
+          <p>
+	    Own Id: OTP-9209</p>
+        </item>
+        <item>
+          <p>
+	    Allow user to specify the IP address epmd binds to</p>
+          <p>
+	    The IP address(es) epmd binds to can now be specified by
+	    the user, either via epmd's new "-address" option or (if
+	    that's not used) by setting the environment variable
+	    ERL_EPMD_ADDRESS. Multiple addresses may be specified
+	    using a comma-separated list. If the loopback address is
+	    not in this list, it will be added implicitly, so that
+	    the daemon can be queried by an interactive epmd
+	    process.(Thanks to Holger Wei�)</p>
+          <p>
+	    Own Id: OTP-9213</p>
+        </item>
+        <item>
+          <p>
+	    epmd: include host address in local access check</p>
+          <p>
+	    In FreeBSD jails, the source and destination address of
+	    connections to localhost are changed to be the IP address
+	    of the jail. Consider connections from the host's IP
+	    address to itself (e.g., the source and destination
+	    address match) to be local for the access control checks.
+	    (Thanks to Michal Santos and Tom at diogunix.com)</p>
+          <p>
+	    Own Id: OTP-9214</p>
+        </item>
+        <item>
+          <p>
+	    Fix list returned by net_kernel:epmd_module</p>
+          <p>
+	    Function epmd_module of net_kernel returns a list instead
+	    of an atom, when the epmd_module-flag is used. (Thanks to
+	    Markus Knofe)</p>
+          <p>
+	    Own Id: OTP-9215</p>
+        </item>
+        <item>
+          <p>
+	    Fix epmd's dbg_perror() output</p>
+          <p>
+	    The dbg_perror() function now hands the current errno
+	    value over to dbg_gen_printf(). This fixes the problem
+	    that errno had been reset to zero by the time it was used
+	    (to print the corresponding error message) in the
+	    dbg_gen_printf() function. (Thanks to Holger Wei�)</p>
+          <p>
+	    Own Id: OTP-9223</p>
+        </item>
+        <item>
+          <p>
+	    heart: remove garbage appended to heart command</p>
+          <p>
+	    heart:get_cmd/0 is documented to return an empty string
+	    if the command is cleared. get_cmd/0 returns 2 extra
+	    bytes: 1 byte for the trailing null, 1 byte from the op
+	    (the op is an unsigned char and 2 bytes are allocated for
+	    it in the returned buffer). (Thanks to Michael Santos)</p>
+          <p>
+	    Own Id: OTP-9224</p>
+        </item>
+        <item>
+          <p>
+	    file: fix hang reading compressed files</p>
+          <p>
+	    The gzio driver goes into an infinite loop when reading
+	    past the end of a compressed file. Reported-By: Alex
+	    Morarash (Thanks to Michael Santos)</p>
+          <p>
+	    Own Id: OTP-9245</p>
+        </item>
+        <item>
+	    <p>Eliminate alias warnings from gcc 4.5.2</p>
+          <p>
+	    Own Id: OTP-9250</p>
+        </item>
+        <item>
+          <p>
+	    Unsigned integer may overflow in error message (Thanks to
+	    Michael Santos)</p>
+          <p>
+	    Own Id: OTP-9251</p>
+        </item>
+        <item>
+          <p>
+	    Driver names should be strings, not atoms</p>
+          <p>
+	    Own Id: OTP-9253</p>
+        </item>
+        <item>
+          <p>
+	    driver_entry: Remove gratuitous paren and fix typo
+	    (Thanks to Tuncer Ayaz)</p>
+          <p>
+	    Own Id: OTP-9254</p>
+        </item>
+        <item>
+          <p>
+	    Fix format specifiers in erl_exit messages</p>
+          <p>
+	    Fix an error message by using an unsigned integer
+	    specifier as seen in a tweet by @metabrew: #erlang VM
+	    crashed with "no next heap size found: -2090496108,
+	    offset 0", suddenly allocated all available RAM</p>
+          <p>
+	    Also correct mis-typed string formats in bif.c.(Thanks to
+	    Michael Santos)</p>
+          <p>
+	    Own Id: OTP-9262</p>
+        </item>
+        <item>
+          <p>
+	    net_drv: remove unused tcp request id inet_drv: remove
+	    gratuitous assignment (Thanks to Tuncer Ayaz)</p>
+          <p>
+	    Own Id: OTP-9263</p>
+        </item>
+        <item>
+          <p>
+	    Teach run_erl RUN_ERL_DISABLE_FLOWCNTRL for disabling
+	    flow control</p>
+          <p>
+	    Flow control can cause unwanted behaviour of the beam
+	    process, if accidentally hit Ctrl-S (instead of Ctrl-D to
+	    detach) the entire beam may be blocked.</p>
+          <p>
+	    Fix this problem by making it possible to turn off flow
+	    control by setting the environment variable
+	    RUN_ERL_DISABLE_FLOWCNTRL. (Thanks to Jonas Faklkevik)</p>
+          <p>
+	    Own Id: OTP-9270</p>
+        </item>
+        <item>
+	    <p>The following bugs due to missing memory barriers have
+	    been fixed:</p> <list> <item><p> ETS tables using the
+	    <c>write_concurrency</c> option could potentially get
+	    into an internally inconsistent state. </p></item>
+	    <item><p> ETS tables using the <c>ordered_set</c> option
+	    could potentially get into an internally inconsistent
+	    state. </p></item> <item><p> A number of memory barriers
+	    have been added when building with the
+	    <c>libatomic_ops</c> API (i.e. when passing
+	    <c>--with-libatomic_ops=PATH</c> to <c>configure</c>) and
+	    the tilera atomics API (i.e. when building for the tilera
+	    chip). Note that these bugs were due to erroneous usage
+	    of the APIs, and not in the implementations of the APIs.
+	    When using these APIs the following bugs where
+	    present:</p> <list> <item><p> The BIF
+	    <c>erlang:ports/0</c> could return an erroneous result.
+	    </p></item> <item><p> A thread blocking other threads
+	    during code loading, or setup of tracing could
+	    potentially read invalid data. </p></item> <item><p>
+	    Fixation of ETS tables could potentially get into an
+	    internally inconsistent state. </p></item> </list>
+	    </item> </list>
+          <p>
+	    Own Id: OTP-9281</p>
+        </item>
+        <item>
+          <p>
+	    Fix halfword bug for ETS ordered_set when doing
+	    <c>select/match</c> with partly bound key.</p>
+          <p>
+	    Own Id: OTP-9292</p>
+        </item>
+        <item>
+          <p>
+	    Fix bug in <c>code:is_module_native</c> that caused crash
+	    for deleted modules.</p>
+          <p>
+	    Own Id: OTP-9298</p>
+        </item>
+        <item>
+          <p>
+	    Calling <c>driver_async_cancel()</c> could cause a
+	    scheduler thread to enter an eternal loop doing no useful
+	    work. (Thanks to Anders Ramsell)</p>
+          <p>
+	    Own Id: OTP-9302</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    New <c>enif_is_exception function</c> to allow NIFs to
+	    determine whether an <c>ERL_NIF_TERM</c> represents an
+	    exception. (Thanks to Steve Vinoski)</p>
+          <p>
+	    Own Id: OTP-9150</p>
+        </item>
+        <item>
+          <p>
+	    A process being garbage collected by another process
+	    could be scheduled on another scheduler. This prevented
+	    this scheduler from doing any useful work until the
+	    garbage collection was done. This either occurred due to
+	    a explicit call to the <c>garbage_collect/1</c> BIF, or
+	    due to a garbage collection part of code loading. A
+	    process being garbage collected like this will now not be
+	    scheduled until the garbage collection has completed.</p>
+          <p>
+	    Own Id: OTP-9211</p>
+        </item>
+        <item>
+          <p>
+	    Remove unnecessary validation copy in
+	    prim_file:drv_command/3 (Thanks to Tony Rogvall)</p>
+          <p>
+	    Own Id: OTP-9276</p>
+        </item>
+        <item>
+          <p>
+	    Symbolic link handling on windows have been slightly
+	    updated to map error conditions more consequently and
+	    correctly read directory links created outside of the
+	    Erlang environment.</p>
+          <p>
+	    Own Id: OTP-9279</p>
+        </item>
+        <item>
+          <p>
+	    Due to standard library DLL mismatches between versions
+	    of OpenSSL and Erlang/OTP, OpenSSL is now linked
+	    statically to the crypto driver on Windows. This fixes
+	    problems starting crypto when running Erlang as a service
+	    on all Windows versions.</p>
+          <p>
+	    Own Id: OTP-9280</p>
+        </item>
+        <item>
+	    <p>Halfword emulator memory handling improvements:</p>
+	    <list> <item><p>Much more of internal memory structures
+	    have been made able to use "high" memory and are no
+	    longer restricted to the 4Gb limit that still applies for
+	    all process heap data.</p> </item> <item><p>Fixed faulty
+	    values from <c>erlang:memory()</c> caused by 32-bit
+	    counter overflow.</p> </item> <item><p>New counter
+	    <c>low</c> in <c>erlang:memory()</c> that sums up all
+	    memory restricted by 4Gb limit.</p> </item> </list>
+          <p>
+	    Own Id: OTP-9291 Aux Id: seq11841 </p>
+        </item>
+        <item>
+          <p>
+	    The value set in the undocumented and unsupported
+	    ERL_version_FLAGS (e.g. ERL_R14B03_FLAGS) environment
+	    variable can now be overridden by the command line
+	    (similar to ERL_AFLAGS).</p>
+          <p>
+	    Own Id: OTP-9297</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Erts 5.8.3.2</title>
 
     <section><title>Known Bugs and Problems</title>
diff --git a/erts/doc/src/run_erl.xml b/erts/doc/src/run_erl.xml
index 7bf7f559c5..c9784299b3 100644
--- a/erts/doc/src/run_erl.xml
+++ b/erts/doc/src/run_erl.xml
@@ -4,7 +4,7 @@
 <comref>
   <header>
     <copyright>
-      <year>1999</year><year>2009</year>
+      <year>1999</year><year>2011</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -144,6 +144,14 @@
       <item>The size (in bytes) of a log file before switching to a
        new log file. Default is 100000, minimum is 1000 and maximum is
        approximately 2^30.</item>
+      <tag>RUN_ERL_DISABLE_FLOWCNTRL</tag>
+      <item>If defined, disables input and output flow control for the pty opend by run_erl.
+       Useful if you want to remove any risk of accidentally blocking the flow control
+       by hit Ctrl-S (instead of Ctrl-D to detach).
+       Which may result in blocking of the entire beam process
+       and in the case of running heart as supervisor
+       even the heart process will be blocked when writing log message to terminal.
+       Leaving the heart process unable to do its work.</item>
     </taglist>
   </section>
 
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index f04df354a8..d9362a2a8f 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1996-2010. All Rights Reserved.
+# Copyright Ericsson AB 1996-2011. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -515,11 +515,12 @@ $(TTF_DIR)/beam_opcodes.h $(TTF_DIR)/beam_opcodes.c: $(OPCODE_TABLES) utils/beam
 ATOMS=	beam/atom.names
 BIFS =	beam/bif.tab
 ifdef HIPE_ENABLED
+HIPE_ARCH64_TAB=hipe/hipe_bif64.tab
 HIPE_x86_TAB=hipe/hipe_x86.tab
-HIPE_amd64_TAB=hipe/hipe_amd64.tab
+HIPE_amd64_TAB=hipe/hipe_amd64.tab $(HIPE_ARCH64_TAB)
 HIPE_ultrasparc_TAB=hipe/hipe_sparc.tab
 HIPE_ppc_TAB=hipe/hipe_ppc.tab
-HIPE_ppc64_TAB=hipe/hipe_ppc64.tab
+HIPE_ppc64_TAB=hipe/hipe_ppc64.tab $(HIPE_ARCH64_TAB)
 HIPE_arm_TAB=hipe/hipe_arm.tab
 HIPE_ARCH_TAB=$(HIPE_$(ARCH)_TAB)
 BIFS += hipe/hipe_bif0.tab hipe/hipe_bif1.tab hipe/hipe_bif2.tab $(HIPE_ARCH_TAB)
@@ -801,12 +802,14 @@ OS_OBJS +=	$(OBJDIR)/erl_mseg.o \
 		$(OBJDIR)/erl_mtrace_sys_wrap.o \
 		$(OBJDIR)/erl_sys_common_misc.o
 
+HIPE_ARCH64_OBJS=$(OBJDIR)/hipe_bif64.o
+
 HIPE_x86_OS_OBJS=$(HIPE_x86_$(OPSYS)_OBJS)
 HIPE_x86_OBJS=$(OBJDIR)/hipe_x86.o $(OBJDIR)/hipe_x86_glue.o $(OBJDIR)/hipe_x86_bifs.o $(OBJDIR)/hipe_x86_signal.o $(OBJDIR)/hipe_x86_stack.o $(HIPE_x86_OS_OBJS)
-HIPE_amd64_OBJS=$(OBJDIR)/hipe_amd64.o $(OBJDIR)/hipe_amd64_glue.o $(OBJDIR)/hipe_amd64_bifs.o $(OBJDIR)/hipe_x86_signal.o $(OBJDIR)/hipe_x86_stack.o
+HIPE_amd64_OBJS=$(OBJDIR)/hipe_amd64.o $(OBJDIR)/hipe_amd64_glue.o $(OBJDIR)/hipe_amd64_bifs.o $(OBJDIR)/hipe_x86_signal.o $(OBJDIR)/hipe_x86_stack.o $(HIPE_ARCH64_OBJS)
 HIPE_ultrasparc_OBJS=$(OBJDIR)/hipe_sparc.o $(OBJDIR)/hipe_sparc_glue.o $(OBJDIR)/hipe_sparc_bifs.o $(OBJDIR)/hipe_risc_stack.o
 HIPE_ppc_OBJS=$(OBJDIR)/hipe_ppc.o $(OBJDIR)/hipe_ppc_glue.o $(OBJDIR)/hipe_ppc_bifs.o $(OBJDIR)/hipe_risc_stack.o
-HIPE_ppc64_OBJS=$(HIPE_ppc_OBJS)
+HIPE_ppc64_OBJS=$(HIPE_ppc_OBJS) $(HIPE_ARCH64_OBJS)
 HIPE_arm_OBJS=$(OBJDIR)/hipe_arm.o $(OBJDIR)/hipe_arm_glue.o $(OBJDIR)/hipe_arm_bifs.o $(OBJDIR)/hipe_risc_stack.o
 HIPE_noarch_OBJS=
 HIPE_ARCH_OBJS=$(HIPE_$(ARCH)_OBJS)
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index 327620772f..68d64fb7b0 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1996-2010. All Rights Reserved.
+# Copyright Ericsson AB 1996-2011. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -76,6 +76,7 @@ atom allocator_sizes
 atom alloc_util_allocators
 atom allow_passive_connect
 atom already_loaded
+atom amd64
 atom anchored
 atom and
 atom andalso
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index 6ae9736141..d76a7d8e9f 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1999-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -142,7 +142,7 @@ BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
     if ((modp = erts_get_module(BIF_ARG_1)) == NULL) {
 	return am_undefined;
     }
-    return (is_native(modp->code) ||
+    return ((modp->code && is_native(modp->code)) ||
 	    (modp->old_code != 0 && is_native(modp->old_code))) ?
 		am_true : am_false;
 }
@@ -175,8 +175,12 @@ check_process_code_2(BIF_ALIST_2)
 	Eterm res;
 	if (internal_pid_index(BIF_ARG_1) >= erts_max_processes)
 	    goto error;
-	rp = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN,
-				       BIF_ARG_1, ERTS_PROC_LOCK_MAIN);
+#ifdef ERTS_SMP
+	rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN,
+				   BIF_ARG_1, ERTS_PROC_LOCK_MAIN);
+#else
+	rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0);
+#endif
 	if (!rp) {
 	    BIF_RET(am_false);
 	}
@@ -187,8 +191,10 @@ check_process_code_2(BIF_ALIST_2)
 	modp = erts_get_module(BIF_ARG_2);
 	res = check_process_code(rp, modp);
 #ifdef ERTS_SMP
-	if (BIF_P != rp)
+	if (BIF_P != rp) {
+	    erts_resume(rp, ERTS_PROC_LOCK_MAIN);
 	    erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN);
+	}
 #endif
 	BIF_RET(res);
     }
@@ -472,9 +478,6 @@ check_process_code(Process* rp, Module* modp)
     for (oh = MSO(rp).first; oh; oh = oh->next) {
 	if (thing_subtag(oh->thing_word) == FUN_SUBTAG) {
 	    ErlFunThing* funp = (ErlFunThing*) oh;
-	    BeamInstr* fun_code;
-
-	    fun_code = funp->fe->address;
 
 	    if (INSIDE((BeamInstr *) funp->fe->address)) {
 		if (done_gc) {
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 8a48049921..fffb172c68 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -291,7 +291,7 @@ dbg_bt(Process* p, Eterm* sp)
 	    if (addr)
 		erts_fprintf(stderr,
 			     HEXF ": %T:%T/%bpu\n",
-			     addr, (Eterm) addr[0], (Eterm) addr[1], (Uint) addr[2]);
+			     addr, (Eterm) addr[0], (Eterm) addr[1], addr[2]);
 	}
 	sp++;
     }
@@ -484,7 +484,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
 		if (f+3 != (BeamInstr *) *ap) {
 		    erts_print(to, to_arg, "f(" HEXF ")", *ap);
 		} else {
-		    erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], (Eterm) f[2]);
+		    erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], f[2]);
 		}
 		ap++;
 	    }
@@ -495,7 +495,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
 		if (f+3 != (BeamInstr *) *ap) {
 		    erts_print(to, to_arg, "p(" HEXF ")", *ap);
 		} else {
-		    erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], (Eterm) f[2]);
+		    erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], f[2]);
 		}
 		ap++;
 	    }
@@ -508,7 +508,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
 	    {
 		Export* ex = (Export *) *ap;
 		erts_print(to, to_arg,
-			   "%T:%T/%bpu", (Eterm) ex->code[0], (Eterm) ex->code[1], (Uint) ex->code[2]);
+			   "%T:%T/%bpu", (Eterm) ex->code[0], (Eterm) ex->code[1], ex->code[2]);
 		ap++;
 	    }
 	    break;
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 47bff4a427..fb90a7d4f7 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -1911,13 +1911,15 @@ void process_main(void)
 	      * Note that for the halfword emulator, the two first elements
 	      * of the array are used.
 	      */
-	     *((BeamInstr **) (UWord) c_p->def_arg_reg) = I+3;
+	     BeamInstr** pi = (BeamInstr**) c_p->def_arg_reg;
+	     *pi = I+3;
 	     set_timer(c_p, unsigned_val(timeout_value));
 	 } else if (timeout_value == am_infinity) {
 	     c_p->flags |= F_TIMO;
 #if !defined(ARCH_64) || HALFWORD_HEAP
 	 } else if (term_to_Uint(timeout_value, &time_val)) {
-	     *((BeamInstr **) (UWord) c_p->def_arg_reg) = I+3;
+	     BeamInstr** pi = (BeamInstr**) c_p->def_arg_reg;
+	     *pi = I+3;
 	     set_timer(c_p, time_val);
 #endif
 	 } else {		/* Wrong time */
@@ -1974,7 +1976,8 @@ void process_main(void)
       * we must test the F_INSLPQUEUE flag as well as the F_TIMO flag.
       */
      if ((c_p->flags & (F_INSLPQUEUE | F_TIMO)) == 0) {
-	 *((BeamInstr **) (UWord) c_p->def_arg_reg) = I+3;
+	 BeamInstr** p = (BeamInstr **) c_p->def_arg_reg;
+	 *p = I+3;
 	 set_timer(c_p, Arg(1));
      }
      goto wait2;
@@ -3413,6 +3416,7 @@ void process_main(void)
 		r(0) = nif_bif_result;
 		CHECK_TERM(r(0));
 		SET_I(c_p->cp);
+		c_p->cp = 0;
 		Goto(*I);
 	    } else if (c_p->freason == TRAP) {
 		SET_I(*((BeamInstr **) (UWord) ((c_p)->def_arg_reg + 3)));
@@ -5321,7 +5325,7 @@ void process_main(void)
 	 ep->code[3] = (BeamInstr) OpCode(apply_bif);
 	 ep->code[4] = (BeamInstr) bif_table[i].f;
 	 /* XXX: set func info for bifs */
-	 ((BeamInstr*)ep->code + 3)[-5] = (BeamInstr) BeamOp(op_i_func_info_IaaI);
+	 ep->fake_op_func_info_for_hipe[0] = (BeamInstr) BeamOp(op_i_func_info_IaaI);
      }
 
      return;
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 788cb4209c..57fe25453d 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -480,8 +480,6 @@ static GenOp* gen_select_literals(LoaderState* stp, GenOpArg S,
 				  GenOpArg* Rest);
 static GenOp* const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 			       GenOpArg Size, GenOpArg* Rest);
-static GenOp* gen_func_info(LoaderState* stp, GenOpArg mod, GenOpArg Func,
-			    GenOpArg arity, GenOpArg label);
 
 static int freeze_code(LoaderState* stp);
 
@@ -1413,7 +1411,6 @@ static int
 load_code(LoaderState* stp)
 {
     int i;
-    int tmp;
     int ci;
     int last_func_start = 0;
     char* sign;
@@ -1933,7 +1930,6 @@ load_code(LoaderState* stp)
 	    case 'P':		/* Byte offset into tuple or stack */
 	    case 'Q':		/* Like 'P', but packable */
 		VerifyTag(stp, tag, TAG_u);
-		tmp = tmp_op->a[arg].val;
 		code[ci++] = (BeamInstr) ((tmp_op->a[arg].val+1) * sizeof(Eterm));
 		break;
 	    case 'l':		/* Floating point register. */
@@ -3401,36 +3397,6 @@ const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     return op;
 }
 
-
-static GenOp*
-gen_func_info(LoaderState* stp, GenOpArg mod, GenOpArg func,
-	      GenOpArg arity, GenOpArg label)
-{
-    GenOp* fi;
-    GenOp* op;
-
-    NEW_GENOP(stp, fi);
-    fi->op = genop_i_func_info_4;
-    fi->arity = 4;
-    fi->a[0].type = TAG_u;	/* untagged Zero */
-    fi->a[0].val = 0;
-    fi->a[1] = mod;
-    fi->a[2] = func;
-    fi->a[3] = arity;
-
-    NEW_GENOP(stp, op);
-    op->op = genop_label_1;
-    op->arity = 1;
-    op->a[0] = label;
-    
-    fi->next = op;
-    op->next = NULL;
-
-    return fi;
-}
-
-
-
 static GenOp*
 gen_make_fun2(LoaderState* stp, GenOpArg idx)
 {
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index f01580eb2b..68b3350d7f 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -368,7 +368,6 @@ static int demonitor(Process *c_p, Eterm ref)
    ErtsMonitor *mon = NULL;  /* The monitor entry to delete */
    Process  *rp;    /* Local target process */
    Eterm     to = NIL;    /* Monitor link traget */
-   Eterm     ref_p; /* Pid of this end */
    DistEntry *dep = NULL;  /* Target's distribution entry */
    int deref_de = 0;
    int res;
@@ -381,7 +380,6 @@ static int demonitor(Process *c_p, Eterm ref)
        res = ERTS_DEMONITOR_BADARG;
        goto done; /* Cannot be this monitor's ref */
    }
-   ref_p = c_p->id;
 
    mon = erts_lookup_monitor(c_p->monitors, ref);
    if (!mon) {
@@ -2170,20 +2168,146 @@ BIF_RETTYPE tl_1(BIF_ALIST_1)
 /**********************************************************************/
 /* return the size of an I/O list */
 
-BIF_RETTYPE iolist_size_1(BIF_ALIST_1)
+static Eterm
+accumulate(Eterm acc, Uint size)
 {
-    Sint size = io_list_len(BIF_ARG_1);
+    if (is_non_value(acc)) {
+	/*
+	 * There is no pre-existing accumulator. Allocate a
+	 * bignum buffer with one extra word to be used if
+	 * the bignum grows in the future.
+	 */
+	Eterm* hp = (Eterm *) erts_alloc(ERTS_ALC_T_TEMP_TERM,
+					 (BIG_UINT_HEAP_SIZE+1) *
+					 sizeof(Eterm));
+	return uint_to_big(size, hp);
+    } else {
+	Eterm* big;
+	int need_heap;
 
-    if (size == -1) {
-	BIF_ERROR(BIF_P, BADARG);
-    } else if (IS_USMALL(0, (Uint) size)) {
-	BIF_RET(make_small(size));
+	/*
+	 * Add 'size' to 'acc' in place. There is always one
+	 * extra word allocated in case the bignum grows by one word.
+	 */
+	big = big_val(acc);
+	need_heap = BIG_NEED_SIZE(BIG_SIZE(big));
+	acc = big_plus_small(acc, size, big);
+	if (BIG_NEED_SIZE(big_size(acc)) > need_heap) {
+	    /*
+	     * The extra word has been consumed. Grow the
+	     * allocation by one word.
+	     */
+	    big = (Eterm *) erts_realloc(ERTS_ALC_T_TEMP_TERM,
+					 big_val(acc),
+					 (need_heap+1) * sizeof(Eterm));
+	    acc = make_big(big);
+	}
+	return acc;
+    }
+}
+
+static Eterm
+consolidate(Process* p, Eterm acc, Uint size)
+{
+    Eterm* hp;
+
+    if (is_non_value(acc)) {
+	return erts_make_integer(size, p);
     } else {
-	Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE);
-	BIF_RET(uint_to_big(size, hp));
+	Eterm* big;
+	Uint sz;
+	Eterm res;
+	
+	acc = accumulate(acc, size);
+	big = big_val(acc);
+	sz = BIG_NEED_SIZE(BIG_SIZE(big));
+	hp = HAlloc(p, sz);
+	res = make_big(hp);
+	while (sz--) {
+	    *hp++ = *big++;
+	}
+	erts_free(ERTS_ALC_T_TEMP_TERM, (void *) big_val(acc));
+	return res;
     }
 }
 
+BIF_RETTYPE iolist_size_1(BIF_ALIST_1)
+{
+    Eterm obj, hd;
+    Eterm* objp;
+    Uint size = 0;
+    Uint cur_size;
+    Uint new_size;
+    Eterm acc = THE_NON_VALUE;
+    DECLARE_ESTACK(s);
+
+    obj = BIF_ARG_1;
+    goto L_again;
+
+    while (!ESTACK_ISEMPTY(s)) {
+	obj = ESTACK_POP(s);
+    L_again:
+	if (is_list(obj)) {
+	L_iter_list:
+	    objp = list_val(obj);
+	    hd = CAR(objp);
+	    obj = CDR(objp);
+	    /* Head */
+	    if (is_byte(hd)) {
+		size++;
+		if (size == 0) {
+		    acc = accumulate(acc, (Uint) -1);
+		    size = 1;
+		}
+	    } else if (is_binary(hd) && binary_bitsize(hd) == 0) {
+		cur_size = binary_size(hd);
+		if ((new_size = size + cur_size) >= size) {
+		    size = new_size;
+		} else {
+		    acc = accumulate(acc, size);
+		    size = cur_size;
+		}
+	    } else if (is_list(hd)) {
+		ESTACK_PUSH(s, obj);
+		obj = hd;
+		goto L_iter_list;
+	    } else if (is_not_nil(hd)) {
+		goto L_type_error;
+	    }
+	    /* Tail */
+	    if (is_list(obj)) {
+		goto L_iter_list;
+	    } else if (is_binary(obj) && binary_bitsize(obj) == 0) {
+		cur_size = binary_size(obj);
+		if ((new_size = size + cur_size) >= size) {
+		    size = new_size;
+		} else {
+		    acc = accumulate(acc, size);
+		    size = cur_size;
+		}
+	    } else if (is_not_nil(obj)) {
+		goto L_type_error;
+	    }
+	} else if (is_binary(obj) && binary_bitsize(obj) == 0) {
+	    cur_size = binary_size(obj);
+	    if ((new_size = size + cur_size) >= size) {
+		size = new_size;
+	    } else {
+		acc = accumulate(acc, size);
+		size = cur_size;
+	    }
+	} else if (is_not_nil(obj)) {
+	    goto L_type_error;
+	}
+    }
+
+    DESTROY_ESTACK(s);
+    BIF_RET(consolidate(BIF_P, acc, size));
+
+ L_type_error:
+    DESTROY_ESTACK(s);
+    BIF_ERROR(BIF_P, BADARG);
+}
 
 /**********************************************************************/
 
@@ -3217,20 +3341,32 @@ BIF_RETTYPE garbage_collect_1(BIF_ALIST_1)
 	BIF_ERROR(BIF_P, BADARG);
     }
 
-    rp = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN,
+    if (BIF_P->id == BIF_ARG_1)
+	rp = BIF_P;
+    else {
+#ifdef ERTS_SMP
+	rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN,
 				   BIF_ARG_1, ERTS_PROC_LOCK_MAIN);
-    if (!rp)
-	BIF_RET(am_false);
-    if (rp == ERTS_PROC_LOCK_BUSY)
-	ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_1);
+	if (rp == ERTS_PROC_LOCK_BUSY)
+	    ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_1);
+#else
+	rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0);
+#endif
+	if (!rp)
+	    BIF_RET(am_false);
+    }
 
     /* The GC cost is taken for the process executing this BIF. */
 
     FLAGS(rp) |= F_NEED_FULLSWEEP;
     reds = erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity);
 
-    if (BIF_P != rp)
+#ifdef ERTS_SMP
+    if (BIF_P != rp) {
+	erts_resume(rp, ERTS_PROC_LOCK_MAIN);
 	erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN);
+    }
+#endif
 
     BIF_RET2(am_true, reds);
 }
@@ -3272,6 +3408,7 @@ BIF_RETTYPE ports_0(BIF_ALIST_0)
     Eterm* dead_ports;
     int alive, dead;
     Uint32 next_ss;
+    int i;
 
     /* To get a consistent snapshot... 
      * We add alive ports from start of the buffer
@@ -3283,21 +3420,18 @@ BIF_RETTYPE ports_0(BIF_ALIST_0)
     erts_smp_atomic_set(&erts_dead_ports_ptr,
 			(erts_aint_t) (port_buf + erts_max_ports));
 
-    next_ss = erts_smp_atomic_inctest(&erts_ports_snapshot);
+    next_ss = erts_smp_atomic32_inctest(&erts_ports_snapshot);
 
-    if (erts_smp_atomic_read(&erts_ports_alive) > 0) {
-	erts_aint_t i;
-	for (i = erts_max_ports-1; i >= 0; i--) {
-	    Port* prt = &erts_port[i];
-	    erts_smp_port_state_lock(prt);
-	    if (!(prt->status & ERTS_PORT_SFLGS_DEAD)
-		&& prt->snapshot != next_ss) {
-		ASSERT(prt->snapshot == next_ss - 1);
-		*pp++ = prt->id;		
-		prt->snapshot = next_ss; /* Consumed by this snapshot */
-	    }
-	    erts_smp_port_state_unlock(prt);
+    for (i = erts_max_ports-1; i >= 0; i--) {
+	Port* prt = &erts_port[i];
+	erts_smp_port_state_lock(prt);
+	if (!(prt->status & ERTS_PORT_SFLGS_DEAD)
+	    && prt->snapshot != next_ss) {
+	    ASSERT(prt->snapshot == next_ss - 1);
+	    *pp++ = prt->id;		
+	    prt->snapshot = next_ss; /* Consumed by this snapshot */
 	}
+	erts_smp_port_state_unlock(prt);
     }
 
     dead_ports = (Eterm*)erts_smp_atomic_xchg(&erts_dead_ports_ptr,
@@ -3362,7 +3496,7 @@ BIF_RETTYPE erts_debug_display_1(BIF_ALIST_1)
     erts_dsprintf_buf_t *dsbufp = erts_create_tmp_dsbuf(64);       
     pres = erts_dsprintf(dsbufp, "%.*T\n", INT_MAX, BIF_ARG_1);
     if (pres < 0)
-	erl_exit(1, "Failed to convert term to string: %d (s)\n",
+	erl_exit(1, "Failed to convert term to string: %d (%s)\n",
 		 -pres, erl_errno_id(-pres));
     hp = HAlloc(BIF_P, 2*dsbufp->str_len); /* we need length * 2 heap words */
     res = buf_to_intlist(&hp, dsbufp->str, dsbufp->str_len, NIL);
@@ -3480,7 +3614,7 @@ term2list_dsprintf(Process *p, Eterm term)
     erts_dsprintf_buf_t *dsbufp = erts_create_tmp_dsbuf(64);       
     pres = erts_dsprintf(dsbufp, "%T", term);
     if (pres < 0)
-	erl_exit(1, "Failed to convert term to list: %d (s)\n",
+	erl_exit(1, "Failed to convert term to list: %d (%s)\n",
 		 -pres, erl_errno_id(-pres));
     hp = HAlloc(p, 2*dsbufp->str_len); /* we need length * 2 heap words */
     res = buf_to_intlist(&hp, dsbufp->str, dsbufp->str_len, NIL);
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index f47f5a9c0c..d18de9ae5d 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -1588,7 +1588,7 @@ big_to_double(Wterm x, double* resp)
 /*
  ** Estimate the number of decimal digits (include sign)
  */
-int big_decimal_estimate(Eterm x)
+int big_decimal_estimate(Wterm x)
 {
     Eterm* xp = big_val(x);
     int lg = I_lg(BIG_V(xp), BIG_SIZE(xp));
@@ -1602,7 +1602,7 @@ int big_decimal_estimate(Eterm x)
 ** Convert a bignum into a string of decimal numbers
 */
 
-static void write_big(Eterm x, void (*write_func)(void *, char), void *arg)
+static void write_big(Wterm x, void (*write_func)(void *, char), void *arg)
 {
     Eterm* xp = big_val(x);
     ErtsDigit* dx = BIG_V(xp);
@@ -1681,7 +1681,7 @@ write_string(void *arg, char c)
     *(--(*((char **) arg))) = c;
 }
 
-char *erts_big_to_string(Eterm x, char *buf, Uint buf_sz)
+char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz)
 {
     char *big_str = buf + buf_sz - 1;
     *big_str = '\0';
diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h
index f28a390aea..2afc37004f 100644
--- a/erts/emulator/beam/big.h
+++ b/erts/emulator/beam/big.h
@@ -114,9 +114,9 @@ typedef Uint  dsize_t;	 /* Vector size type */
 
 #endif
 
-int big_decimal_estimate(Eterm);
+int big_decimal_estimate(Wterm);
 Eterm erts_big_to_list(Eterm, Eterm**);
-char *erts_big_to_string(Eterm x, char *buf, Uint buf_sz);
+char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz);
 
 Eterm small_times(Sint, Sint, Eterm*);
 
diff --git a/erts/emulator/beam/binary.c b/erts/emulator/beam/binary.c
index 9486602633..1fb39c6c67 100644
--- a/erts/emulator/beam/binary.c
+++ b/erts/emulator/beam/binary.c
@@ -32,11 +32,11 @@
 #include "erl_bits.h"
 
 #ifdef DEBUG
-static int list_to_bitstr_buf(Eterm obj, char* buf, int len);
+static int list_to_bitstr_buf(Eterm obj, char* buf, Uint len);
 #else
 static int list_to_bitstr_buf(Eterm obj, char* buf);
 #endif
-static Sint bitstr_list_len(Eterm obj);
+static int bitstr_list_len(Eterm obj, Uint* num_bytes);
 
 void
 erts_init_binary(void)
@@ -355,21 +355,24 @@ BIF_RETTYPE bitstring_to_list_1(BIF_ALIST_1)
 BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg)
 {
     Eterm bin;
-    int i;
+    Uint size;
     int offset;
     byte* bytes;
+
     if (is_nil(arg)) {
 	BIF_RET(new_binary(p,(byte*)"",0));
     }
     if (is_not_list(arg)) {
 	goto error;
     }
-    if ((i = io_list_len(arg)) < 0) {
-	goto error;
+    switch (erts_iolist_size(arg, &size)) {
+    case ERTS_IOLIST_OVERFLOW: BIF_ERROR(p, SYSTEM_LIMIT);
+    case ERTS_IOLIST_TYPE: goto error;
+    default: ;
     }
-    bin = new_binary(p, (byte *)NULL, i);
+    bin = new_binary(p, (byte *)NULL, size);
     bytes = binary_bytes(bin);
-    offset = io_list_to_buf(arg, (char*) bytes, i);
+    offset = io_list_to_buf(arg, (char*) bytes, size);
     ASSERT(offset == 0);
     BIF_RET(bin);
     
@@ -396,7 +399,8 @@ BIF_RETTYPE iolist_to_binary_1(BIF_ALIST_1)
 BIF_RETTYPE list_to_bitstring_1(BIF_ALIST_1)
 {
     Eterm bin;
-    int i,offset;
+    Uint sz;
+    int offset;
     byte* bytes;
     ErlSubBin* sb1; 
     Eterm* hp;
@@ -405,15 +409,19 @@ BIF_RETTYPE list_to_bitstring_1(BIF_ALIST_1)
 	BIF_RET(new_binary(BIF_P,(byte*)"",0));
     }
     if (is_not_list(BIF_ARG_1)) {
-	goto error;
+    error:
+	BIF_ERROR(BIF_P, BADARG);
     }
-    if ((i = bitstr_list_len(BIF_ARG_1)) < 0) {
+    switch (bitstr_list_len(BIF_ARG_1, &sz)) {
+    case ERTS_IOLIST_TYPE:
 	goto error;
+    case ERTS_IOLIST_OVERFLOW:
+	BIF_ERROR(BIF_P, SYSTEM_LIMIT);
     }
-    bin = new_binary(BIF_P, (byte *)NULL, i);
+    bin = new_binary(BIF_P, (byte *)NULL, sz);
     bytes = binary_bytes(bin);
 #ifdef DEBUG
-    offset = list_to_bitstr_buf(BIF_ARG_1, (char*) bytes, i);
+    offset = list_to_bitstr_buf(BIF_ARG_1, (char*) bytes, sz);
 #else
     offset = list_to_bitstr_buf(BIF_ARG_1, (char*) bytes);
 #endif
@@ -422,20 +430,16 @@ BIF_RETTYPE list_to_bitstring_1(BIF_ALIST_1)
 	hp = HAlloc(BIF_P, ERL_SUB_BIN_SIZE);
 	sb1 = (ErlSubBin *) hp;
 	sb1->thing_word = HEADER_SUB_BIN;
-	sb1->size = i-1;
+	sb1->size = sz-1;
 	sb1->offs = 0;
 	sb1->orig = bin;
 	sb1->bitoffs = 0;
 	sb1->bitsize = offset;
 	sb1->is_writable = 0;
-	hp += ERL_SUB_BIN_SIZE;
 	bin = make_binary(sb1);
     }
     
     BIF_RET(bin);
-    
-    error:
-	BIF_ERROR(BIF_P, BADARG);
 }
 
 BIF_RETTYPE split_binary_2(BIF_ALIST_2)
@@ -499,7 +503,7 @@ BIF_RETTYPE split_binary_2(BIF_ALIST_2)
  */
 static int
 #ifdef DEBUG
-list_to_bitstr_buf(Eterm obj, char* buf, int len)
+list_to_bitstr_buf(Eterm obj, char* buf, Uint len)
 #else
 list_to_bitstr_buf(Eterm obj, char* buf)
 #endif
@@ -602,8 +606,8 @@ list_to_bitstr_buf(Eterm obj, char* buf)
     return offset;
 }
 
-static Sint
-bitstr_list_len(Eterm obj)
+static int
+bitstr_list_len(Eterm obj, Uint* num_bytes)
 {
     Eterm* objp;
     Uint len = 0;
@@ -611,6 +615,26 @@ bitstr_list_len(Eterm obj)
     DECLARE_ESTACK(s);
     goto L_again;
 
+#define SAFE_ADD(Var, Val)			\
+    do {					\
+        Uint valvar = (Val);			\
+	Var += valvar;				\
+	if (Var < valvar) {			\
+	    goto L_overflow_error;		\
+	}					\
+    } while (0)
+
+#define SAFE_ADD_BITSIZE(Var, Bin)					\
+    do {								\
+	if (*binary_val(Bin) == HEADER_SUB_BIN) {			\
+            Uint valvar = ((ErlSubBin *) binary_val(Bin))->bitsize;	\
+	    Var += valvar;						\
+	    if (Var < valvar) {						\
+	         goto L_overflow_error;					\
+	    }								\
+        }								\
+    } while (0)
+
     while (!ESTACK_ISEMPTY(s)) {
 	obj = ESTACK_POP(s);
     L_again:
@@ -621,9 +645,12 @@ bitstr_list_len(Eterm obj)
 	    obj = CAR(objp);
 	    if (is_byte(obj)) {
 		len++;
+		if (len == 0) {
+		    goto L_overflow_error;
+		}
 	    } else if (is_binary(obj)) {
-		len += binary_size(obj);
-		offs += binary_bitsize(obj);
+		SAFE_ADD(len, binary_size(obj));
+		SAFE_ADD_BITSIZE(offs, obj);
 	    } else if (is_list(obj)) {
 		ESTACK_PUSH(s, CDR(objp));
 		goto L_iter_list; /* on head */
@@ -635,24 +662,44 @@ bitstr_list_len(Eterm obj)
 	    if (is_list(obj))
 		goto L_iter_list; /* on tail */
 	    else if (is_binary(obj)) {
-		len += binary_size(obj);
-		offs += binary_bitsize(obj);
+		SAFE_ADD(len, binary_size(obj));
+		SAFE_ADD_BITSIZE(offs, obj);
 	    } else if (is_not_nil(obj)) {
 		goto L_type_error;
 	    }
 	} else if (is_binary(obj)) {
-	    len += binary_size(obj);
-	    offs += binary_bitsize(obj);
+	    SAFE_ADD(len, binary_size(obj));
+	    SAFE_ADD_BITSIZE(offs, obj);
 	} else if (is_not_nil(obj)) {
 	    goto L_type_error;
 	}
     }
+#undef SAFE_ADD
+#undef SAFE_ADD_BITSIZE
 
     DESTROY_ESTACK(s);
-    return (Sint) (len + (offs/8) + ((offs % 8) != 0));
+
+    /*
+     * Make sure that the number of bits in the bitstring will fit
+     * in an Uint to ensure that the binary can be matched using
+     * the binary syntax.
+     */
+    if (len << 3 < len) {
+	goto L_overflow_error;
+    }
+    len += (offs >> 3) + ((offs & 7) != 0);
+    if (len << 3 < len) {
+	goto L_overflow_error;
+    }
+    *num_bytes = len;
+    return ERTS_IOLIST_OK;
 
  L_type_error:
     DESTROY_ESTACK(s);
-    return (Sint) -1;
+    return ERTS_IOLIST_TYPE;
+
+ L_overflow_error:
+    DESTROY_ESTACK(s);
+    return ERTS_IOLIST_OVERFLOW;
 }
 
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index d255cf3558..b8889e6206 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -266,7 +266,7 @@ print_process_info(int to, void *to_arg, Process *p)
        }
        erts_print(to, to_arg, "Number of heap fragments: %d\n", frags);
     }
-    erts_print(to, to_arg, "Heap fragment data: %bpu\n", MBUF_SIZE(p));
+    erts_print(to, to_arg, "Heap fragment data: %beu\n", MBUF_SIZE(p));
 
     scb = ERTS_PROC_GET_SAVED_CALLS_BUF(p);
     if (scb) {
@@ -313,12 +313,11 @@ print_process_info(int to, void *to_arg, Process *p)
     }
     
     /* print the number of reductions etc */
-    erts_print(to, to_arg, "Reductions: %bpu\n", p->reds);
+    erts_print(to, to_arg, "Reductions: %beu\n", p->reds);
 
-    erts_print(to, to_arg, "Stack+heap: %bpu\n", p->heap_sz);
+    erts_print(to, to_arg, "Stack+heap: %beu\n", p->heap_sz);
     erts_print(to, to_arg, "OldHeap: %bpu\n",
-               (OLD_HEAP(p) == NULL) ? 0 :
-               (unsigned)(OLD_HEND(p) - OLD_HEAP(p)) );
+               (OLD_HEAP(p) == NULL) ? 0 : (OLD_HEND(p) - OLD_HEAP(p)) );
     erts_print(to, to_arg, "Heap unused: %bpu\n", (p->hend - p->htop));
     erts_print(to, to_arg, "OldHeap unused: %bpu\n",
 	       (OLD_HEAP(p) == NULL) ? 0 : (OLD_HEND(p) - OLD_HTOP(p)) );
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c
index 243e8973cf..90201f3a90 100644
--- a/erts/emulator/beam/copy.c
+++ b/erts/emulator/beam/copy.c
@@ -477,7 +477,7 @@ Eterm copy_struct(Eterm obj, Uint sz, Eterm** hpp, ErlOffHeap* off_heap)
     if (htop != hbot)
 	erl_exit(ERTS_ABORT_EXIT,
 		 "Internal error in copy_struct() when copying %T:"
-		 " htop=%p != hbot=%p (sz=%bpu)\n",
+		 " htop=%p != hbot=%p (sz=%beu)\n",
 		 org_obj, htop, hbot, org_sz); 
 #else
     if (htop > hbot) {
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 02910fad90..b1cdd0660a 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -864,11 +864,15 @@ erts_dsig_send_group_leader(ErtsDSigData *dsdp, Eterm leader, Eterm remote)
 #include <valgrind/valgrind.h>
 #include <valgrind/memcheck.h>
 
+#ifndef HAVE_VALGRIND_PRINTF_XML
+#define VALGRIND_PRINTF_XML VALGRIND_PRINTF
+#endif
+
 #  define PURIFY_MSG(msg)                                                \
     do {								 \
 	char buf__[1]; size_t bufsz__ = sizeof(buf__);			 \
 	if (erts_sys_getenv("VALGRIND_LOG_XML", buf__, &bufsz__) >= 0) { \
-	    VALGRIND_PRINTF("<erlang_error_log>"			 \
+	    VALGRIND_PRINTF_XML("<erlang_error_log>"			 \
 			    "%s, line %d: %s</erlang_error_log>\n",	 \
 			    __FILE__, __LINE__, msg);			 \
 	} else {							 \
@@ -900,7 +904,6 @@ int erts_net_message(Port *prt,
     ErtsDistExternal ede;
     byte *t;
     Sint ctl_len;
-    int orig_ctl_len;
     Eterm arg;
     Eterm from, to;
     Eterm watcher, watched;
@@ -981,7 +984,6 @@ int erts_net_message(Port *prt,
 	PURIFY_MSG("data error");
 	goto data_error;
     }
-    orig_ctl_len = ctl_len;
 
     if (ctl_len > DIST_CTL_DEFAULT_SIZE) {
 	ctl = erts_alloc(ERTS_ALC_T_DCTRL_BUF, ctl_len * sizeof(Eterm));
@@ -1685,7 +1687,7 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf)
     if (size > (Uint) INT_MAX)
 	erl_exit(ERTS_ABORT_EXIT,
 		 "Absurdly large distribution output data buffer "
-		 "(%bpu bytes) passed.\n",
+		 "(%beu bytes) passed.\n",
 		 size);
 
     prt->caller = NIL;
@@ -1712,7 +1714,7 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf)
     if (size > (Uint) INT_MAX)
 	erl_exit(ERTS_ABORT_EXIT,
 		 "Absurdly large distribution output data buffer "
-		 "(%bpu bytes) passed.\n",
+		 "(%beu bytes) passed.\n",
 		 size);
 
     iov[0].iov_base = NULL;
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 775f4435a9..cda404af5e 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -90,6 +90,10 @@ typedef union {
 static ErtsAllocatorState_t sl_alloc_state;
 static ErtsAllocatorState_t std_alloc_state;
 static ErtsAllocatorState_t ll_alloc_state;
+#if HALFWORD_HEAP
+static ErtsAllocatorState_t std_alloc_low_state;
+static ErtsAllocatorState_t ll_alloc_low_state;
+#endif
 static ErtsAllocatorState_t temp_alloc_state;
 static ErtsAllocatorState_t eheap_alloc_state;
 static ErtsAllocatorState_t binary_alloc_state;
@@ -166,6 +170,10 @@ typedef struct {
     struct au_init binary_alloc;
     struct au_init ets_alloc;
     struct au_init driver_alloc;
+#if HALFWORD_HEAP
+    struct au_init std_alloc_low;
+    struct au_init ll_alloc_low;
+#endif
 } erts_alc_hndl_args_init_t;
 
 #define ERTS_AU_INIT__ {0, 0, GOODFIT, DEFAULT_ALLCTR_INIT, {1,1,1,1}}
@@ -193,6 +201,10 @@ set_default_sl_alloc_opts(struct au_init *ip)
 #endif
     ip->init.util.ts 		= ERTS_ALC_MTA_SHORT_LIVED;
     ip->init.util.rsbcst	= 80;
+#if HALFWORD_HEAP
+    ip->init.util.low_mem       = 1;
+#endif
+
 }
 
 static void
@@ -256,6 +268,9 @@ set_default_temp_alloc_opts(struct au_init *ip)
     ip->init.util.ts 		= ERTS_ALC_MTA_TEMPORARY;
     ip->init.util.rsbcst	= 90;
     ip->init.util.rmbcmt	= 100;
+#if HALFWORD_HEAP
+    ip->init.util.low_mem       = 1;
+#endif
 }
 
 static void
@@ -275,6 +290,9 @@ set_default_eheap_alloc_opts(struct au_init *ip)
 #endif
     ip->init.util.ts 		= ERTS_ALC_MTA_EHEAP;
     ip->init.util.rsbcst	= 50;
+#if HALFWORD_HEAP
+    ip->init.util.low_mem       = 1;
+#endif
 }
 
 static void
@@ -531,6 +549,20 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
     erts_allctrs[ERTS_ALC_A_SYSTEM].free		= erts_sys_free;
     erts_allctrs_info[ERTS_ALC_A_SYSTEM].enabled	= 1;
 
+#if HALFWORD_HEAP
+    /* Init low memory variants by cloning */
+    init.std_alloc_low = init.std_alloc;
+    init.std_alloc_low.init.util.alloc_no = ERTS_ALC_A_STANDARD_LOW;
+    init.std_alloc_low.init.util.low_mem  = 1;
+
+    init.ll_alloc_low = init.ll_alloc;
+    init.ll_alloc_low.init.util.alloc_no = ERTS_ALC_A_LONG_LIVED_LOW;
+    init.ll_alloc_low.init.util.low_mem = 1;
+
+    set_au_allocator(ERTS_ALC_A_STANDARD_LOW, &init.std_alloc_low);
+    set_au_allocator(ERTS_ALC_A_LONG_LIVED_LOW, &init.ll_alloc_low);
+#endif /* HALFWORD */
+
     set_au_allocator(ERTS_ALC_A_TEMPORARY, &init.temp_alloc);
     set_au_allocator(ERTS_ALC_A_SHORT_LIVED, &init.sl_alloc);
     set_au_allocator(ERTS_ALC_A_STANDARD, &init.std_alloc);
@@ -576,7 +608,14 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
     start_au_allocator(ERTS_ALC_A_LONG_LIVED,
 		       &init.ll_alloc,
 		       &ll_alloc_state);
-
+#if HALFWORD_HEAP
+    start_au_allocator(ERTS_ALC_A_LONG_LIVED_LOW,
+		       &init.ll_alloc_low,
+		       &ll_alloc_low_state);
+    start_au_allocator(ERTS_ALC_A_STANDARD_LOW,
+		       &init.std_alloc_low,
+		       &std_alloc_low_state);
+#endif
     start_au_allocator(ERTS_ALC_A_EHEAP,
 		       &init.eheap_alloc,
 		       &eheap_alloc_state);
@@ -612,11 +651,9 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
     erts_set_fix_size(ERTS_ALC_T_PROC,		sizeof(Process));
     erts_set_fix_size(ERTS_ALC_T_DB_TABLE,	sizeof(DbTable));
     erts_set_fix_size(ERTS_ALC_T_ATOM,		sizeof(Atom));
-    erts_set_fix_size(ERTS_ALC_T_EXPORT,	sizeof(Export));
+
     erts_set_fix_size(ERTS_ALC_T_MODULE,	sizeof(Module));
     erts_set_fix_size(ERTS_ALC_T_REG_PROC,	sizeof(RegProc));
-    erts_set_fix_size(ERTS_ALC_T_MONITOR_SH,	ERTS_MONITOR_SH_SIZE*sizeof(Uint));
-    erts_set_fix_size(ERTS_ALC_T_NLINK_SH,	ERTS_LINK_SH_SIZE*sizeof(Uint));
     erts_set_fix_size(ERTS_ALC_T_FUN_ENTRY,	sizeof(ErlFunEntry));
 #ifdef ERTS_ALC_T_DRV_EV_D_STATE
     erts_set_fix_size(ERTS_ALC_T_DRV_EV_D_STATE,
@@ -626,6 +663,11 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
     erts_set_fix_size(ERTS_ALC_T_DRV_SEL_D_STATE,
 		      sizeof(ErtsDrvSelectDataState));
 #endif
+#if !HALFWORD_HEAP
+    erts_set_fix_size(ERTS_ALC_T_EXPORT,	sizeof(Export));
+    erts_set_fix_size(ERTS_ALC_T_MONITOR_SH,	ERTS_MONITOR_SH_SIZE*sizeof(Uint));
+    erts_set_fix_size(ERTS_ALC_T_NLINK_SH,	ERTS_LINK_SH_SIZE*sizeof(Uint));
+#endif
 #endif
 #endif
 
@@ -638,6 +680,15 @@ set_au_allocator(ErtsAlcType_t alctr_n, struct au_init *init)
     ErtsAllocatorInfo_t *ai = &erts_allctrs_info[alctr_n];
     ErtsAllocatorThrSpec_t *tspec = &erts_allctr_thr_spec[alctr_n];
 
+#if HALFWORD_HEAP
+    /* If halfword heap, silently ignore any disabling of internal
+     * allocators for low memory
+     */
+    if (init->init.util.low_mem) {
+	init->enable = 1;
+    }
+#endif
+
     if (!init->enable) {
 	af->alloc = erts_sys_alloc;
 	af->realloc = erts_sys_realloc;
@@ -1348,14 +1399,6 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init)
 	    argv[j++] = argv[i];
     }
     *argc = j;
-#if HALFWORD_HEAP
-    /* If halfword heap, silently ignore any disabling of internal 
-       allocators */
-    for (i = 0; i < aui_sz; ++i)
-	aui[i]->enable = 1;
-#endif
-
-    
 }
 
 static char *type_no_str(ErtsAlcType_t n)
@@ -1528,10 +1571,10 @@ erts_realloc_n_enomem(ErtsAlcType_t n, void *ptr, Uint size)
     erts_alc_fatal_error(ERTS_ALC_E_NOMEM, ERTS_ALC_O_REALLOC, n, size);
 }
 
-static ERTS_INLINE Uint
+static ERTS_INLINE UWord
 alcu_size(ErtsAlcType_t ai)
 {
-    Uint res = 0;
+    UWord res = 0;
 
     ASSERT(erts_allctrs_info[ai].enabled);
     ASSERT(erts_allctrs_info[ai].alloc_util);
@@ -1563,6 +1606,49 @@ alcu_size(ErtsAlcType_t ai)
     return res;
 }
 
+#if HALFWORD_HEAP
+static ERTS_INLINE int
+alcu_is_low(ErtsAlcType_t ai)
+{
+    int is_low = 0;
+    ASSERT(erts_allctrs_info[ai].enabled);
+    ASSERT(erts_allctrs_info[ai].alloc_util);
+
+    if (!erts_allctrs_info[ai].thr_spec) {
+	Allctr_t *allctr = erts_allctrs_info[ai].extra;
+	is_low = allctr->mseg_opt.low_mem;
+    }
+    else {
+	ErtsAllocatorThrSpec_t *tspec = &erts_allctr_thr_spec[ai];
+	int i;
+# ifdef DEBUG
+	int found_one = 0;
+# endif
+
+	ASSERT(tspec->all_thr_safe);
+	ASSERT(tspec->enabled);
+
+	for (i = tspec->size - 1; i >= 0; i--) {
+	    Allctr_t *allctr = tspec->allctr[i];
+	    if (allctr) {
+# ifdef DEBUG
+		if (!found_one) {
+		    is_low = allctr->mseg_opt.low_mem;
+		    found_one = 1;
+		}
+		else ASSERT(is_low == allctr->mseg_opt.low_mem);
+# else
+		is_low = allctr->mseg_opt.low_mem;
+		break;
+# endif
+	    }
+	}
+	ASSERT(found_one);
+    }
+    return is_low;
+}
+#endif /* HALFWORD */
+
 Eterm
 erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 {
@@ -1579,22 +1665,28 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	int code;
 	int ets;
 	int maximum;
+#if HALFWORD_HEAP
+	int low;
+#endif
     } want = {0};
     struct {
-	Uint total;
-	Uint processes;
-	Uint processes_used;
-	Uint system;
-	Uint atom;
-	Uint atom_used;
-	Uint binary;
-	Uint code;
-	Uint ets;
-	Uint maximum;
+	UWord total;
+	UWord processes;
+	UWord processes_used;
+	UWord system;
+	UWord atom;
+	UWord atom_used;
+	UWord binary;
+	UWord code;
+	UWord ets;
+	UWord maximum;
+#if HALFWORD_HEAP
+	UWord low;
+#endif
     } size = {0};
-    Eterm atoms[sizeof(size)/sizeof(Uint)];
-    Uint *uintps[sizeof(size)/sizeof(Uint)];
-    Eterm euints[sizeof(size)/sizeof(Uint)];
+    Eterm atoms[sizeof(size)/sizeof(UWord)];
+    UWord *uintps[sizeof(size)/sizeof(UWord)];
+    Eterm euints[sizeof(size)/sizeof(UWord)];
     int want_tot_or_sys;
     int length;
     Eterm res = THE_NON_VALUE;
@@ -1646,7 +1738,11 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	    atoms[length] = am_maximum;
 	    uintps[length++] = &size.maximum;
 	}
-
+#if HALFWORD_HEAP
+	want.low = 1;
+	atoms[length] = am_low;
+	uintps[length++] = &size.low;
+#endif
     }
     else {
 	DeclareTmpHeapNoproc(tmp_heap,2);
@@ -1740,6 +1836,15 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 		    return am_badarg;
 		}
 		break;
+#if HALFWORD_HEAP
+	    case am_low:
+		if (!want.low) {
+		    want.low = 1;
+		    atoms[length] = am_low;
+		    uintps[length++] = &size.low;
+		}
+		break;
+#endif
 	    default:
 		UnUseTmpHeapNoproc(2);
 		return am_badarg;
@@ -1769,7 +1874,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 
     ASSERT(length <= sizeof(atoms)/sizeof(Eterm));
     ASSERT(length <= sizeof(euints)/sizeof(Eterm));
-    ASSERT(length <= sizeof(uintps)/sizeof(Uint));
+    ASSERT(length <= sizeof(uintps)/sizeof(UWord));
 
 
     if (proc) {
@@ -1788,8 +1893,8 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 
 	for (ai = ERTS_ALC_A_MIN; ai <= ERTS_ALC_A_MAX; ai++) {
 	    if (erts_allctrs_info[ai].alloc_util) {
-		Uint *save;
-		Uint asz;
+		UWord *save;
+		UWord asz;
 		switch (ai) {
 		case ERTS_ALC_A_TEMPORARY:
 		     /*
@@ -1814,6 +1919,11 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 		if (save)
 		    *save = asz;
 		size.total += asz;
+#if HALFWORD_HEAP
+		if (alcu_is_low(ai)) {
+		    size.low += asz;
+		}
+#endif
 	    }
 	}
     }
@@ -1821,7 +1931,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 
 
     if (want_tot_or_sys || want.processes || want.processes_used) {
-	Uint tmp;
+	UWord tmp;
 
 	if (ERTS_MEM_NEED_ALL_ALCU)
 	    tmp = size.processes;
@@ -1836,6 +1946,9 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 
 	size.processes = size.processes_used = tmp;
 
+#if HALFWORD_HEAP
+	/* BUG: We ignore link and monitor memory */
+#else
 	erts_fix_info(ERTS_ALC_T_NLINK_SH, &efi);
 	size.processes += efi.total;
 	size.processes_used += efi.used;
@@ -1843,6 +1956,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	erts_fix_info(ERTS_ALC_T_MONITOR_SH, &efi);
 	size.processes += efi.total;
 	size.processes_used += efi.used;
+#endif
 
 	erts_fix_info(ERTS_ALC_T_PROC, &efi);
 	size.processes += efi.total;
@@ -1879,8 +1993,12 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	erts_fix_info(ERTS_ALC_T_MODULE, &efi);
 	size.code += efi.used;
 	size.code += export_table_sz();
+#if HALFWORD_HEAP
+	size.code += export_list_size() * sizeof(Export);
+#else
 	erts_fix_info(ERTS_ALC_T_EXPORT, &efi);
 	size.code += efi.used;
+#endif
 	size.code += erts_fun_table_sz();
 	erts_fix_info(ERTS_ALC_T_FUN_ENTRY, &efi);
 	size.code += efi.used;
@@ -1926,9 +2044,9 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	if (only_one_value) {
 	    ASSERT(length == 1);
 	    hsz = 0;
-	    erts_bld_uint(NULL, &hsz, *uintps[0]);
+	    erts_bld_uword(NULL, &hsz, *uintps[0]);
 	    hp = hsz ? HAlloc((Process *) proc, hsz) : NULL;
-	    res = erts_bld_uint(&hp, NULL, *uintps[0]);
+	    res = erts_bld_uword(&hp, NULL, *uintps[0]);
 	}
 	else {
 	    Uint **hpp = NULL;
@@ -1938,7 +2056,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
 	    while (1) {
 		int i;
 		for (i = 0; i < length; i++)
-		    euints[i] = erts_bld_uint(hpp, hszp, *uintps[i]);
+		    euints[i] = erts_bld_uword(hpp, hszp, *uintps[i]);
 		res = erts_bld_2tup_list(hpp, hszp, length, atoms, euints);
 		if (hpp)
 		    break;
@@ -2107,11 +2225,11 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
 	for (i = 0; i < length; i++) {
 	    switch (values[i].arity) {
 	    case 2:
-		erts_print(to, arg, "%s: %bpu\n",
+		erts_print(to, arg, "%s: %beu\n",
 			   values[i].name, values[i].ui[0]);
 		break;
 	    case 3:
-		erts_print(to, arg, "%s: %bpu %bpu\n",
+		erts_print(to, arg, "%s: %beu %beu\n",
 			   values[i].name, values[i].ui[0], values[i].ui[1]);
 		break;
 	    default:
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index ca71798917..c6cc0e1fac 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -75,6 +75,11 @@ allocator	EHEAP		true		eheap_alloc
 allocator	ETS		true		ets_alloc
 allocator	FIXED_SIZE	true		fix_alloc
 
++if halfword
+allocator	LONG_LIVED_LOW	true		ll_alloc_low
+allocator	STANDARD_LOW	true		std_alloc_low
++endif
+
 +else # Non smp build
 
 allocator	TEMPORARY	false		temp_alloc
@@ -85,12 +90,18 @@ allocator	EHEAP		false		eheap_alloc
 allocator	ETS		false		ets_alloc
 allocator	FIXED_SIZE	false		fix_alloc
 
++if halfword
+allocator	LONG_LIVED_LOW	false		ll_alloc_low
+allocator	STANDARD_LOW	false		std_alloc_low
++endif
+
 +endif
 
 allocator	BINARY		true		binary_alloc
 allocator	DRIVER		true		driver_alloc
 
 
+
 # --- Class declarations -----------------------------------------------------
 #
 # Syntax: class <CLASS> <DESCRIPTION>
@@ -125,14 +136,9 @@ class	SYSTEM		system_data
 
 type	PROC		FIXED_SIZE	PROCESSES	proc
 type	ATOM		FIXED_SIZE	ATOM		atom_entry
-type	EXPORT		FIXED_SIZE	CODE		export_entry
 type	MODULE		FIXED_SIZE	CODE		module_entry
 type	REG_PROC	FIXED_SIZE	PROCESSES	reg_proc
 type	LINK_LH		STANDARD	PROCESSES	link_lh
-type	MONITOR_SH	FIXED_SIZE	PROCESSES	monitor_sh
-type	MONITOR_LH	STANDARD	PROCESSES	monitor_lh
-type	NLINK_SH	FIXED_SIZE	PROCESSES	nlink_sh
-type	NLINK_LH	STANDARD	PROCESSES	nlink_lh
 type	SUSPEND_MON	STANDARD	PROCESSES	suspend_monitor
 type	PEND_SUSPEND	SHORT_LIVED	PROCESSES	pending_suspend
 type	PROC_LIST	SHORT_LIVED	PROCESSES	proc_list
@@ -175,7 +181,6 @@ type	DRIVER		STANDARD	SYSTEM		driver
 type	NIF		DRIVER		SYSTEM		nif_internal
 type	BINARY		BINARY		BINARIES	binary
 type	NBIF_TABLE	SYSTEM		SYSTEM		nbif_tab
-type	CODE		LONG_LIVED	CODE		code
 type	ARG_REG		STANDARD	PROCESSES	arg_reg
 type	PROC_DICT	STANDARD	PROCESSES	proc_dict
 type	CALLS_BUF	STANDARD	PROCESSES	calls_buf
@@ -193,10 +198,8 @@ type	DB_FIXATION	SHORT_LIVED	ETS		db_fixation
 type	DB_FIX_DEL	SHORT_LIVED	ETS		fixed_del
 type	DB_TABLES	LONG_LIVED	ETS		db_tabs
 type    DB_NTAB_ENT	STANDARD	ETS		db_named_table_entry
-type	DB_HEIR_DATA	STANDARD	ETS		db_heir_data
 type	DB_TMP		TEMPORARY	ETS		db_tmp
 type	DB_MC_STK	TEMPORARY	ETS		db_mc_stack
-type	DB_MS_PSDO_PROC	LONG_LIVED	ETS		db_match_pseudo_proc
 type	DB_MS_RUN_HEAP	SHORT_LIVED	ETS		db_match_spec_run_heap
 type	DB_MS_CMPL_HEAP	TEMPORARY	ETS		db_match_spec_cmpl_heap
 type	DB_SEG		ETS		ETS		db_segment
@@ -213,10 +216,8 @@ type	LOGGER_DSBUF	TEMPORARY	SYSTEM		logger_dsbuf
 type	TMP_DSBUF	TEMPORARY	SYSTEM		tmp_dsbuf
 type	INFO_DSBUF	SYSTEM		SYSTEM		info_dsbuf
 # INFO_DSBUF have to use the SYSTEM allocator; otherwise, a deadlock might occur
-type	SCHDLR_DATA	LONG_LIVED	SYSTEM		scheduler_data
 type	SCHDLR_SLP_INFO	LONG_LIVED	SYSTEM		scheduler_sleep_info
 type	RUNQS		LONG_LIVED	SYSTEM		run_queues
-type	DDLL_PROCESS	STANDARD	SYSTEM		ddll_processes
 type	DDLL_HANDLE	STANDARD	SYSTEM		ddll_handle
 type	DDLL_ERRCODES	LONG_LIVED	SYSTEM		ddll_errcodes
 type	DDLL_TMP_BUF	TEMPORARY	SYSTEM		ddll_tmp_buf
@@ -327,13 +328,45 @@ type	SSB		SHORT_LIVED	PROCESSES	ssb
 +endif
 
 
++if halfword
+
+type	DDLL_PROCESS	STANDARD_LOW	SYSTEM		ddll_processes
+type	MONITOR_LH	STANDARD_LOW	PROCESSES	monitor_lh
+type	NLINK_LH	STANDARD_LOW	PROCESSES	nlink_lh
+type	CODE		LONG_LIVED_LOW	CODE		code
+type	DB_HEIR_DATA	STANDARD_LOW	ETS		db_heir_data
+type	DB_MS_PSDO_PROC	LONG_LIVED_LOW	ETS		db_match_pseudo_proc
+type	SCHDLR_DATA	LONG_LIVED_LOW	SYSTEM		scheduler_data
+type  	LL_TEMP_TERM 	LONG_LIVED_LOW	SYSTEM		ll_temp_term
+
+# no FIXED_SIZE for low memory
+type	EXPORT		STANDARD_LOW	CODE		export_entry
+type	MONITOR_SH	STANDARD_LOW	PROCESSES	monitor_sh
+type	NLINK_SH	STANDARD_LOW	PROCESSES	nlink_sh
+
++else # "fullword"
+
+type	DDLL_PROCESS	STANDARD	SYSTEM		ddll_processes
+type	MONITOR_LH	STANDARD	PROCESSES	monitor_lh
+type	NLINK_LH	STANDARD	PROCESSES	nlink_lh
+type	CODE		LONG_LIVED	CODE		code
+type	DB_HEIR_DATA	STANDARD	ETS		db_heir_data
+type	DB_MS_PSDO_PROC	LONG_LIVED	ETS		db_match_pseudo_proc
+type	SCHDLR_DATA	LONG_LIVED	SYSTEM		scheduler_data
+type  	LL_TEMP_TERM 	LONG_LIVED	SYSTEM		ll_temp_term
+
+type	EXPORT		FIXED_SIZE	CODE		export_entry
+type	MONITOR_SH	FIXED_SIZE	PROCESSES	monitor_sh
+type	NLINK_SH	FIXED_SIZE	PROCESSES	nlink_sh
+
++endif
+
+
 #
 # Types used by system specific code
 #
 
 type  	TEMP_TERM 	TEMPORARY	SYSTEM		temp_term
-type  	LL_TEMP_TERM 	LONG_LIVED	SYSTEM		ll_temp_term
-
 type	DRV_TAB		LONG_LIVED	SYSTEM		drv_tab
 type	DRV_EV_STATE	LONG_LIVED	SYSTEM		driver_event_state
 type	DRV_EV_D_STATE	FIXED_SIZE	SYSTEM		driver_event_data_state
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index 1394b7e829..cc04ef65bf 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -1639,6 +1639,9 @@ static struct {
     Eterm e;
     Eterm t;
     Eterm ramv;
+#if HALFWORD_HEAP
+    Eterm low;
+#endif
     Eterm sbct;
 #if HAVE_ERTS_MSEG
     Eterm asbcst;
@@ -1724,6 +1727,9 @@ init_atoms(Allctr_t *allctr)
 	AM_INIT(e);
 	AM_INIT(t);
 	AM_INIT(ramv);
+#if HALFWORD_HEAP
+	AM_INIT(low);
+#endif
 	AM_INIT(sbct);
 #if HAVE_ERTS_MSEG
 	AM_INIT(asbcst);
@@ -1877,7 +1883,7 @@ sz_info_carriers(Allctr_t *allctr,
 		   cs->blocks.max_ever.size);
 	erts_print(to,
 		   arg,
-		   "%scarriers size: %bpu %bpu %bpu\n",
+		   "%scarriers size: %beu %bpu %bpu\n",
 		   prefix,
 		   curr_size,
 		   cs->max.size,
@@ -1933,7 +1939,7 @@ info_carriers(Allctr_t *allctr,
 		   cs->blocks.max_ever.size);
 	erts_print(to,
 		   arg,
-		   "%scarriers: %bpu %bpu %bpu\n",
+		   "%scarriers: %beu %bpu %bpu\n",
 		   prefix,
 		   curr_no,
 		   cs->max.no,
@@ -1952,7 +1958,7 @@ info_carriers(Allctr_t *allctr,
 		   cs->curr_sys_alloc.no);
 	erts_print(to,
 		   arg,
-		   "%scarriers size: %bpu %bpu %bpu\n",
+		   "%scarriers size: %beu %bpu %bpu\n",
 		   prefix,
 		   curr_size,
 		   cs->max.size,
@@ -2053,15 +2059,15 @@ info_calls(Allctr_t *allctr,
 
 #define PRINT_CC_4(TO, TOA, NAME, CC)					\
     if ((CC).giga_no == 0)						\
-	erts_print(TO, TOA, "%s calls: %bpu\n", NAME, CC.no);		\
+	erts_print(TO, TOA, "%s calls: %b32u\n", NAME, CC.no);		\
     else								\
-	erts_print(TO, TOA, "%s calls: %bpu%09lu\n", NAME, CC.giga_no, CC.no)
+	erts_print(TO, TOA, "%s calls: %b32u%09lu\n", NAME, CC.giga_no, CC.no)
 
 #define PRINT_CC_5(TO, TOA, PRFX, NAME, CC)				\
     if ((CC).giga_no == 0)						\
-	erts_print(TO, TOA, "%s%s calls: %bpu\n",PRFX,NAME,CC.no);	\
+	erts_print(TO, TOA, "%s%s calls: %b32u\n",PRFX,NAME,CC.no);	\
     else								\
-	erts_print(TO, TOA, "%s%s calls: %bpu%09lu\n",PRFX,NAME,CC.giga_no,CC.no)
+	erts_print(TO, TOA, "%s%s calls: %b32u%09lu\n",PRFX,NAME,CC.giga_no,CC.no)
 
 	char *prefix = allctr->name_prefix;
 	int to = *print_to_p;
@@ -2168,23 +2174,29 @@ info_options(Allctr_t *allctr,
 		   "option e: true\n"
 		   "option t: %s\n"
 		   "option ramv: %s\n"
-		   "option sbct: %bpu\n"
+#if HALFWORD_HEAP
+		   "option low: %s\n"
+#endif
+		   "option sbct: %beu\n"
 #if HAVE_ERTS_MSEG
 		   "option asbcst: %bpu\n"
 		   "option rsbcst: %bpu\n"
 #endif
-		   "option rsbcmt: %bpu\n"
-		   "option rmbcmt: %bpu\n"
-		   "option mmbcs: %bpu\n"
+		   "option rsbcmt: %beu\n"
+		   "option rmbcmt: %beu\n"
+		   "option mmbcs: %beu\n"
 #if HAVE_ERTS_MSEG
-		   "option mmsbc: %bpu\n"
-		   "option mmmbc: %bpu\n"
+		   "option mmsbc: %beu\n"
+		   "option mmmbc: %beu\n"
 #endif
-		   "option lmbcs: %bpu\n"
-		   "option smbcs: %bpu\n"
-		   "option mbcgs: %bpu\n",
+		   "option lmbcs: %beu\n"
+		   "option smbcs: %beu\n"
+		   "option mbcgs: %beu\n",
 		   topt,
 		   allctr->ramv ? "true" : "false",
+#if HALFWORD_HEAP
+		   allctr->mseg_opt.low_mem ? "true" : "false",
+#endif
 		   allctr->sbc_threshold,
 #if HAVE_ERTS_MSEG
 		   allctr->mseg_opt.abs_shrink_th,
@@ -2243,6 +2255,9 @@ info_options(Allctr_t *allctr,
 	add_2tup(hpp, szp, &res,
 		 am.sbct,
 		 bld_uint(hpp, szp, allctr->sbc_threshold));
+#if HALFWORD_HEAP
+	add_2tup(hpp, szp, &res, am.low, allctr->mseg_opt.low_mem ? am_true : am_false);
+#endif
 	add_2tup(hpp, szp, &res, am.ramv, allctr->ramv ? am_true : am_false);
 	add_2tup(hpp, szp, &res, am.t, (allctr->t
 					? bld_uint(hpp, szp, (Uint) allctr->t)
@@ -2292,9 +2307,9 @@ erts_alcu_au_info_options(int *print_to_p, void *print_to_arg,
 	erts_print(*print_to_p,
 		   print_to_arg,
 #if HAVE_ERTS_MSEG
-		   "option mmc: %bpu\n"
+		   "option mmc: %beu\n"
 #endif
-		   "option ycs: %bpu\n",
+		   "option ycs: %beu\n",
 #if HAVE_ERTS_MSEG
 		   max_mseg_carriers,
 #endif
@@ -3105,13 +3120,12 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
 	goto error;
 
 #if HAVE_ERTS_MSEG
-    {
-	ErtsMsegOpt_t mseg_opt = ERTS_MSEG_DEFAULT_OPT_INITIALIZER;
-    
-	sys_memcpy((void *) &allctr->mseg_opt,
-		   (void *) &mseg_opt,
-		   sizeof(ErtsMsegOpt_t));
-    }
+    sys_memcpy((void *) &allctr->mseg_opt,
+	       (void *) &erts_mseg_default_opt,
+	       sizeof(ErtsMsegOpt_t));
+# if HALFWORD_HEAP
+    allctr->mseg_opt.low_mem = init->low_mem;
+# endif
 #endif
 
     allctr->name_prefix			= init->name_prefix;
diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h
index d296081714..ddf84c086c 100644
--- a/erts/emulator/beam/erl_alloc_util.h
+++ b/erts/emulator/beam/erl_alloc_util.h
@@ -38,6 +38,7 @@ typedef struct {
     int tspec;
     int tpref;
     int ramv;
+    int low_mem;   /* HALFWORD only */
     UWord sbct;
     UWord asbcst;
     UWord rsbcst;
@@ -70,6 +71,7 @@ typedef struct {
     0,			/* (bool)   tspec:  thread specific              */\
     0,			/* (bool)   tpref:  thread preferred             */\
     0,			/* (bool)   ramv:   realloc always moves         */\
+    0,			/* (bool)   low_mem: HALFWORD only               */\
     512*1024,		/* (bytes)  sbct:   sbc threshold                */\
     2*1024*2024,	/* (amount) asbcst: abs sbc shrink threshold     */\
     20,			/* (%)      rsbcst: rel sbc shrink threshold     */\
@@ -97,6 +99,7 @@ typedef struct {
     0,			/* (bool)   tspec:  thread specific              */\
     0,			/* (bool)   tpref:  thread preferred             */\
     0,			/* (bool)   ramv:   realloc always moves         */\
+    0,			/* (bool)   low_mem: HALFWORD only               */\
     64*1024,		/* (bytes)  sbct:   sbc threshold                */\
     2*1024*2024,	/* (amount) asbcst: abs sbc shrink threshold     */\
     20,			/* (%)      rsbcst: rel sbc shrink threshold     */\
diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c
index 12c7631448..91b64411d4 100644
--- a/erts/emulator/beam/erl_async.c
+++ b/erts/emulator/beam/erl_async.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2000-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2000-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -251,6 +251,7 @@ static int async_del(long id)
 		erts_free(ERTS_ALC_T_ASYNC, a);
 		return 1;
 	    }
+	    a = a->next;
 	}
 	erts_mtx_unlock(&async_q[i].mtx);
     }
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index c9cdcb87a6..9631fb50db 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2006-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -146,7 +146,7 @@ BIF_RETTYPE erl_ddll_try_load_3(Process *p, Eterm path_term,
 				Eterm name_term, Eterm options)
 {
     char *path = NULL;
-    int path_len;
+    Uint path_len;
     char *name = NULL;
     DE_Handle *dh;
     erts_driver_t *drv;
@@ -221,9 +221,7 @@ BIF_RETTYPE erl_ddll_try_load_3(Process *p, Eterm path_term,
 	goto error;
     }
 
-    path_len = io_list_len(path_term);
-
-    if (path_len <= 0) {
+    if (erts_iolist_size(path_term, &path_len)) {
 	goto error;
     }
     path = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, path_len + 1 /* might need path separator */ + sys_strlen(name) + 1);
@@ -1878,7 +1876,7 @@ static Eterm mkatom(char *str)
 static char *pick_list_or_atom(Eterm name_term)
 { 
     char *name = NULL;
-    int name_len;
+    Uint name_len;
     if (is_atom(name_term)) {
 	Atom *ap = atom_tab(atom_val(name_term));
 	if (ap->len == 0) {
@@ -1890,8 +1888,7 @@ static char *pick_list_or_atom(Eterm name_term)
 	memcpy(name,ap->name,ap->len);
 	name[ap->len] = '\0';
     } else {
-	name_len = io_list_len(name_term);
-	if (name_len <= 0) {
+	if (erts_iolist_size(name_term, &name_len)) {
 	    goto error;
 	}
 	name = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, name_len + 1);
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index e06fbde9fb..f264bf44df 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -71,9 +71,9 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE
 #endif
 #endif
 #ifdef ERTS_SMP
-				     " [smp:%bpu:%bpu]"
+				     " [smp:%beu:%beu]"
 #endif
-				     " [rq:%bpu]"
+				     " [rq:%beu]"
 #ifdef USE_THREADS
 				     " [async-threads:%d]"
 #endif
@@ -1723,17 +1723,23 @@ info_1_tuple(Process* BIF_P,	/* Pointer to current process. */
 	} else if (is_list(*tp)) {
 #if defined(PURIFY)
 #define ERTS_ERROR_CHECKER_PRINTF purify_printf
+#define ERTS_ERROR_CHECKER_PRINTF_XML purify_printf
 #elif defined(VALGRIND)
 #define ERTS_ERROR_CHECKER_PRINTF VALGRIND_PRINTF
+#  ifndef HAVE_VALGRIND_PRINTF_XML
+#    define ERTS_ERROR_CHECKER_PRINTF_XML VALGRIND_PRINTF
+#  else
+#    define ERTS_ERROR_CHECKER_PRINTF_XML VALGRIND_PRINTF_XML
+#  endif
 #endif
-	    int buf_size = 8*1024; /* Try with 8KB first */
+	    Uint buf_size = 8*1024; /* Try with 8KB first */
 	    char *buf = erts_alloc(ERTS_ALC_T_TMP, buf_size);
 	    int r = io_list_to_buf(*tp, (char*) buf, buf_size - 1);
 	    if (r < 0) {
 		erts_free(ERTS_ALC_T_TMP, (void *) buf);
-		buf_size = io_list_len(*tp);
-		if (buf_size < 0)
+		if (erts_iolist_size(*tp, &buf_size)) {
 		    goto badarg;
+		}
 		buf_size++;
 		buf = erts_alloc(ERTS_ALC_T_TMP, buf_size);
 		r = io_list_to_buf(*tp, (char*) buf, buf_size - 1);
@@ -1741,8 +1747,8 @@ info_1_tuple(Process* BIF_P,	/* Pointer to current process. */
 	    }
 	    buf[buf_size - 1 - r] = '\0';
 	    if (check_if_xml()) {
-		ERTS_ERROR_CHECKER_PRINTF("<erlang_info_log>"
-					  "%s</erlang_info_log>\n", buf);
+		ERTS_ERROR_CHECKER_PRINTF_XML("<erlang_info_log>"
+					      "%s</erlang_info_log>\n", buf);
 	    } else {
 		ERTS_ERROR_CHECKER_PRINTF("%s\n", buf);
 	    }
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index fbc92b9730..3fd35dd963 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2001-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -996,6 +996,7 @@ static byte* convert_environment(Process* p, Eterm env)
     Eterm* hp;
     Uint heap_size;
     int n;
+    Uint size;
     byte* bytes;
 
     if ((n = list_length(env)) < 0) {
@@ -1039,15 +1040,15 @@ static byte* convert_environment(Process* p, Eterm env)
     if (is_not_nil(env)) {
 	goto done;
     }
-    if ((n = io_list_len(all)) < 0) {
+    if (erts_iolist_size(all, &size)) {
 	goto done;
     }
 
     /*
      * Put the result in a binary (no risk for a memory leak that way).
      */
-    (void) erts_new_heap_binary(p, NULL, n, &bytes);
-    io_list_to_buf(all, (char*)bytes, n);
+    (void) erts_new_heap_binary(p, NULL, size, &bytes);
+    io_list_to_buf(all, (char*)bytes, size);
 
  done:
     erts_free(ERTS_ALC_T_TMP, temp_heap);
diff --git a/erts/emulator/beam/erl_bif_re.c b/erts/emulator/beam/erl_bif_re.c
index d4a8a3aaa7..26891c4348 100644
--- a/erts/emulator/beam/erl_bif_re.c
+++ b/erts/emulator/beam/erl_bif_re.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -417,7 +417,7 @@ build_compile_result(Process *p, Eterm error_tag, pcre *result, int errcode, con
 BIF_RETTYPE
 re_compile_2(BIF_ALIST_2)
 {
-    int slen;
+    Uint slen;
     char *expr;
     pcre *result;
     int errcode = 0;
@@ -444,7 +444,7 @@ re_compile_2(BIF_ALIST_2)
 	BIF_TRAP2(ucompile_trap_exportp, BIF_P, BIF_ARG_1, BIF_ARG_2);
     }
 
-    if ((slen = io_list_len(BIF_ARG_1)) < 0) {
+    if (erts_iolist_size(BIF_ARG_1, &slen)) {
         BIF_ERROR(BIF_P,BADARG);
     }
     expr = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, slen + 1);
@@ -795,8 +795,8 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code)
 			memcpy(tmpb,ap->name,ap->len);
 			tmpb[ap->len] = '\0';
 		    } else {
-			int slen = io_list_len(val);
-			if (slen < 0) {
+			Uint slen;
+			if (erts_iolist_size(val, &slen)) {
 			    goto error;
 			}
 			if ((slen + 1) > tmpbsiz) {
@@ -851,7 +851,7 @@ re_run_3(BIF_ALIST_3)
     const pcre *code_tmp;
     RestartContext restart;
     byte *temp_alloc = NULL;
-    int slength;
+    Uint slength;
     int startoffset = 0;
     int options = 0, comp_options = 0;
     int ovsize;
@@ -875,7 +875,7 @@ re_run_3(BIF_ALIST_3)
     if (is_not_tuple(BIF_ARG_2) || (arityval(*tuple_val(BIF_ARG_2)) != 4)) {
 	if (is_binary(BIF_ARG_2) || is_list(BIF_ARG_2) || is_nil(BIF_ARG_2)) { 
 	    /* Compile from textual RE */
-	    int slen;
+	    Uint slen;
 	    char *expr;
 	    pcre *result;
 	    int errcode = 0;
@@ -889,7 +889,7 @@ re_run_3(BIF_ALIST_3)
 		BIF_TRAP3(urun_trap_exportp, BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
 	    }
 	    
-	    if ((slen = io_list_len(BIF_ARG_2)) < 0) {
+	    if (erts_iolist_size(BIF_ARG_2, &slen)) {
 		BIF_ERROR(BIF_P,BADARG);
 	    }
 	    
@@ -1027,7 +1027,7 @@ re_run_3(BIF_ALIST_3)
 	restart.flags |= RESTART_FLAG_SUBJECT_IN_BINARY;
     } else {
 handle_iolist:
-	if ((slength = io_list_len(BIF_ARG_1)) < 0) {
+	if (erts_iolist_size(BIF_ARG_1, &slength)) {
 	    erts_free(ERTS_ALC_T_RE_SUBJECT, restart.ovector);
 	    erts_free(ERTS_ALC_T_RE_SUBJECT, restart.code);
 	    if (restart.ret_info != NULL) {
diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 6f8a7436d5..e56084b9cb 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1999-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -177,7 +177,6 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff
     byte* LSB;
     byte* MSB;
     Uint* hp;
-    Uint* hp_end;
     Uint words_needed;
     Uint actual;
     Uint v32;
@@ -405,7 +404,6 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff
     default:
 	words_needed = 1+WSIZE(bytes);
 	hp = HeapOnlyAlloc(p, words_needed);
-	hp_end = hp + words_needed;
 	res = bytes_to_big(LSB, bytes, sgn, hp); 
 	if (is_small(res)) {
 	    p->htop = hp;
@@ -425,7 +423,6 @@ Eterm
 erts_bs_get_binary_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffer* mb)
 {
     ErlSubBin* sb;
-    size_t num_bytes;		/* Number of bytes in binary. */
 
     if (mb->size - mb->offset < num_bits) {	/* Asked for too many bits.  */
 	return THE_NON_VALUE;
@@ -435,7 +432,6 @@ erts_bs_get_binary_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffe
      * From now on, we can't fail.
      */
 
-    num_bytes = NBYTES(num_bits);
     sb = (ErlSubBin *) HeapOnlyAlloc(p, ERL_SUB_BIN_SIZE);
     
     sb->thing_word = HEADER_SUB_BIN;
@@ -1557,7 +1553,6 @@ Uint32
 erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb)
 {
     Uint bytes;
-    Uint bits;
     Uint offs;
     byte bigbuf[4];
     byte* LSB;
@@ -1567,7 +1562,6 @@ erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb)
     ASSERT(mb->size - mb->offset >= 32);
 
     bytes = 4;
-    bits = 8;
     offs = 0;
 
     LSB = bigbuf;
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 61e8a595be..e0a6aa05c6 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -3737,7 +3737,7 @@ static void print_table(int to, void *to_arg, int show,  DbTable* tb)
 
     erts_print(to, to_arg, "Objects: %d\n", (int)erts_smp_atomic_read(&tb->common.nitems));
     erts_print(to, to_arg, "Words: %bpu\n",
-	       (Uint) ((erts_smp_atomic_read(&tb->common.memory_size)
+	       (UWord) ((erts_smp_atomic_read(&tb->common.memory_size)
 			+ sizeof(Uint)
 			- 1)
 		       / sizeof(Uint)));
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 9ef990cc4f..fdc82c8b88 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -105,7 +105,7 @@
 #define NSEG_2   256 /* Size of second segment table */
 #define NSEG_INC 128 /* Number of segments to grow after that */
 
-#define SEGTAB(tb) ((struct segment**)erts_smp_atomic_read(&(tb)->segtab))
+#define SEGTAB(tb) ((struct segment**)erts_smp_atomic_read_acqb(&(tb)->segtab))
 #define NACTIVE(tb) ((int)erts_smp_atomic_read(&(tb)->nactive))
 #define NITEMS(tb) ((int)erts_smp_atomic_read(&(tb)->common.nitems))
 
@@ -122,8 +122,8 @@
 */
 static ERTS_INLINE Uint hash_to_ix(DbTableHash* tb, HashValue hval)
 {
-    Uint mask = erts_smp_atomic_read(&tb->szm);
-    Uint ix = hval & mask; 
+    Uint mask = erts_smp_atomic_read_acqb(&tb->szm);
+    Uint ix = hval & mask;
     if (ix >= erts_smp_atomic_read(&tb->nactive)) {
 	ix &= mask>>1;
 	ASSERT(ix < erts_smp_atomic_read(&tb->nactive));
@@ -668,6 +668,7 @@ int db_create_hash(Process *p, DbTable *tbl)
     else { /* coarse locking */
 	tb->locks = NULL;
     }
+    ERTS_THR_MEMORY_BARRIER;
 #endif /* ERST_SMP */
     return DB_ERROR_NONE;
 }
@@ -2085,7 +2086,14 @@ static void db_print_hash(int to, void *to_arg, int show, DbTable *tbl)
 	    while(list != 0) {
 		if (list->hvalue == INVALID_HASH)
 		    erts_print(to, to_arg, "*");
-		erts_print(to, to_arg, "%T", make_tuple(list->dbterm.tpl));
+		if (tb->common.compress) {
+		    Eterm key = GETKEY(tb, list->dbterm.tpl);
+		    erts_print(to, to_arg, "key=%R", key, list->dbterm.tpl);
+		}
+		else {
+		    Eterm obj = make_tuple_rel(list->dbterm.tpl,list->dbterm.tpl);
+		    erts_print(to, to_arg, "%R", obj, list->dbterm.tpl);
+		}
 		if (list->next != 0)
 		    erts_print(to, to_arg, ",");
 		list = list->next;
@@ -2342,7 +2350,7 @@ static int alloc_seg(DbTableHash *tb)
 	    struct ext_segment* eseg;
 	    eseg = (struct ext_segment*) SEGTAB(tb)[seg_ix-1];
 	    MY_ASSERT(eseg!=NULL && eseg->s.is_ext_segment);
-	    erts_smp_atomic_set(&tb->segtab, (erts_aint_t) eseg->segtab);
+	    erts_smp_atomic_set_relb(&tb->segtab, (erts_aint_t) eseg->segtab);
 	    tb->nsegs = eseg->nsegs;
 	}
 	ASSERT(seg_ix < tb->nsegs);
@@ -2414,7 +2422,7 @@ static int free_seg(DbTableHash *tb, int free_records)
 	    MY_ASSERT(newtop->s.is_ext_segment);
 	    if (newtop->prev_segtab != NULL) {
 		/* Time to use a smaller segtab */
-		erts_smp_atomic_set(&tb->segtab, (erts_aint_t)newtop->prev_segtab);
+		erts_smp_atomic_set_relb(&tb->segtab, (erts_aint_t)newtop->prev_segtab);
 		tb->nsegs = seg_ix;
 		ASSERT(tb->nsegs == EXTSEG(SEGTAB(tb))->nsegs);
 	    }
@@ -2431,7 +2439,7 @@ static int free_seg(DbTableHash *tb, int free_records)
     if (seg_ix > 0) {
 	if (seg_ix < tb->nsegs) SEGTAB(tb)[seg_ix] = NULL;
     } else {
-	erts_smp_atomic_set(&tb->segtab, (erts_aint_t)NULL);
+	erts_smp_atomic_set_relb(&tb->segtab, (erts_aint_t)NULL);
     }
 #endif
     tb->nslots -= SEGSZ;
@@ -2526,9 +2534,9 @@ static void grow(DbTableHash* tb, int nactive)
     }
     erts_smp_atomic_inc(&tb->nactive);
     if (from_ix == 0) {
-	erts_smp_atomic_set(&tb->szm, szm);
+	erts_smp_atomic_set_relb(&tb->szm, szm);
     }
-    erts_smp_atomic_set(&tb->is_resizing, 0);
+    erts_smp_atomic_set_relb(&tb->is_resizing, 0);
 
     /* Finally, let's split the bucket. We try to do it in a smart way
        to keep link order and avoid unnecessary updates of next-pointers */
@@ -2560,7 +2568,7 @@ static void grow(DbTableHash* tb, int nactive)
     return;
    
 abort:
-    erts_smp_atomic_set(&tb->is_resizing, 0);
+    erts_smp_atomic_set_relb(&tb->is_resizing, 0);
 }
 
 
@@ -2604,7 +2612,7 @@ static void shrink(DbTableHash* tb, int nactive)
 	    
 	    erts_smp_atomic_set(&tb->nactive, src_ix);
 	    if (dst_ix == 0) {
-		erts_smp_atomic_set(&tb->szm, low_szm);
+		erts_smp_atomic_set_relb(&tb->szm, low_szm);
 	    }
 	    WUNLOCK_HASH(lck);
 	    
@@ -2618,7 +2626,7 @@ static void shrink(DbTableHash* tb, int nactive)
 
     }
     /*else already done */
-    erts_smp_atomic_set(&tb->is_resizing, 0);
+    erts_smp_atomic_set_relb(&tb->is_resizing, 0);
 }
 
 
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index a59c0c258d..9a0ba3a418 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -111,7 +111,7 @@ static void release_stack(DbTableTree* tb, DbTreeStack* stack)
 {
     if (stack == &tb->static_stack) {
 	ASSERT(erts_smp_atomic_read(&tb->is_stack_busy) == 1);
-	erts_smp_atomic_set(&tb->is_stack_busy, 0);
+	erts_smp_atomic_set_relb(&tb->is_stack_busy, 0);
     }
     else {
 	erts_db_free(ERTS_ALC_T_DB_STK, (DbTable *) tb,
@@ -179,7 +179,7 @@ static ERTS_INLINE TreeDbTerm* replace_dbterm(DbTableTree *tb, TreeDbTerm* old,
 static TreeDbTerm *traverse_until(TreeDbTerm *t, int *current, int to);
 static void check_slot_pos(DbTableTree *tb);
 static void check_saved_stack(DbTableTree *tb);
-static int check_table_tree(TreeDbTerm *t);
+static int check_table_tree(DbTableTree* tb, TreeDbTerm *t);
 
 #define TREE_DEBUG
 #endif
@@ -194,8 +194,8 @@ static int check_table_tree(TreeDbTerm *t);
 ** Debugging dump
 */
 
-static void do_dump_tree2(int to, void *to_arg, int show, TreeDbTerm *t,
-			  int offset);
+static void do_dump_tree2(DbTableTree*, int to, void *to_arg, int show,
+			  TreeDbTerm *t, int offset);
 
 #else
 
@@ -1730,6 +1730,7 @@ static int db_select_delete_tree(Process *p, DbTable *tbl,
 ** Other interface routines (not directly coupled to one bif)
 */
 
+
 /* Display tree contents (for dump) */
 static void db_print_tree(int to, void *to_arg, 
 			  int show,
@@ -1740,7 +1741,7 @@ static void db_print_tree(int to, void *to_arg,
     if (show)
 	erts_print(to, to_arg, "\nTree data dump:\n"
 		   "------------------------------------------------\n");
-    do_dump_tree2(to, to_arg, show, tb->root, 0);
+    do_dump_tree2(&tbl->tree, to, to_arg, show, tb->root, 0);
     if (show)
 	erts_print(to, to_arg, "\n"
 		   "------------------------------------------------\n");
@@ -2694,7 +2695,7 @@ static Sint do_cmp_partly_bound(Eterm a, Eterm b, Eterm* b_base, int *done)
 	while (1) {
 	    if ((j = do_cmp_partly_bound(*aa++, *bb++, b_base, done)) != 0 || *done)
 		return j;
-	    if (*aa==*bb)
+	    if (is_same(*aa, NULL, *bb, b_base))
 		return 0;
 	    if (is_not_list(*aa) || is_not_list(*bb))
 		return do_cmp_partly_bound(*aa, *bb, b_base, done);
@@ -2742,7 +2743,7 @@ static Sint cmp_partly_bound(Eterm partly_bound_key, Eterm bound_key, Eterm* bk_
 	erts_fprintf(stderr," > ");
     else
 	erts_fprintf(stderr," == ");
-    erts_fprintf(stderr,"%T\n",bound_key);  // HALFWORD BUG: printing rterm
+    erts_fprintf(stderr,"%R\n", bound_key, bk_base);
 #endif
     return ret;
 }
@@ -3084,19 +3085,28 @@ static int doit_select_delete(DbTableTree *tb, TreeDbTerm *this, void *ptr,
 }
 
 #ifdef TREE_DEBUG
-static void do_dump_tree2(int to, void *to_arg, int show, TreeDbTerm *t,
-			  int offset)
+static void do_dump_tree2(DbTableTree* tb, int to, void *to_arg, int show,
+			  TreeDbTerm *t, int offset)
 {
     if (t == NULL)
-	return 0;
-    do_dump_tree2(to, to_arg, show, t->right, offset + 4);
+	return;
+    do_dump_tree2(tb, to, to_arg, show, t->right, offset + 4);
     if (show) {
-	erts_print(to, to_arg, "%*s%T (addr = %p, bal = %d)\n"
-		   offset, "", make_tuple(t->dbterm.tpl),
+	const char* prefix;
+	Eterm term;
+	if (tb->common.compress) {
+	    prefix = "key=";
+	    term = GETKEY(tb, t->dbterm.tpl);
+	}
+	else {
+	    prefix = "";
+	    term = make_tuple_rel(t->dbterm.tpl,t->dbterm.tpl);
+	}
+	erts_print(to, to_arg, "%*s%s%R (addr = %p, bal = %d)\n",
+		   offset, "", prefix, term, t->dbterm.tpl,
 		   t, t->balance);
     }
-    do_dump_tree2(to, to_arg, show, t->left, offset + 4); 
-    return sum;
+    do_dump_tree2(tb, to, to_arg, show, t->left, offset + 4); 
 }
 
 #endif
@@ -3106,7 +3116,7 @@ static void do_dump_tree2(int to, void *to_arg, int show, TreeDbTerm *t,
 void db_check_table_tree(DbTable *tbl)
 {
     DbTableTree *tb = &tbl->tree;
-    check_table_tree(tb->root);
+    check_table_tree(tb, tb->root);
     check_saved_stack(tb);
     check_slot_pos(tb);
 }
@@ -3137,7 +3147,7 @@ static void check_slot_pos(DbTableTree *tb)
 		   "element position %d is really 0x%08X, when stack says "
 		   "it's 0x%08X\n", tb->stack.slot, t, 
 		   tb->stack.array[tb->stack.pos - 1]);
-	do_dump_tree2(ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
+	do_dump_tree2(tb, ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
     }
 }
 	
@@ -3152,14 +3162,14 @@ static void check_saved_stack(DbTableTree *tb)
      if (t != stack->array[0]) {
 	 erts_fprintf(stderr,"tb->stack[0] is 0x%08X, should be 0x%08X\n",
 		      stack->array[0], t);
-	 do_dump_tree2(ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
+	 do_dump_tree2(tb, ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
 	 return;
      }
      while (n < stack->pos) {
 	 if (t == NULL) {
 	     erts_fprintf(stderr, "NULL pointer in tree when stack not empty,"
 			" stack depth is %d\n", n);
-	     do_dump_tree2(ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
+	     do_dump_tree2(tb, ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
 	     return;
 	 }
 	 n++;
@@ -3173,28 +3183,26 @@ static void check_saved_stack(DbTableTree *tb)
 			    "represent child pointer in tree!"
 			    "(left == 0x%08X, right == 0x%08X\n", 
 			    n, tb->stack[n], t->left, t->right);
-		 do_dump_tree2(ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
+		 do_dump_tree2(tb, ERTS_PRINT_STDERR, NULL, 1, tb->root, 0);
 		 return;
 	     }
 	 }
      }
 }
 
-static int check_table_tree(TreeDbTerm *t)
+static int check_table_tree(DbTableTree* tb, TreeDbTerm *t)
 {
     int lh, rh;
     if (t == NULL)
 	return 0;
-    lh = check_table_tree(t->left);
-    rh = check_table_tree(t->right);
+    lh = check_table_tree(tb, t->left);
+    rh = check_table_tree(tb, t->right);
     if ((rh - lh) != t->balance) {
 	erts_fprintf(stderr, "Invalid tree balance for this node:\n");
-	erts_fprintf(stderr,"balance = %d, left = 0x%08X, right = 0x%08X\n"
-		     "data = %T",
-		     t->balance, t->left, t->right,
-		     make_tuple(t->dbterm.tpl));
+	erts_fprintf(stderr,"balance = %d, left = 0x%08X, right = 0x%08X\n",
+		     t->balance, t->left, t->right);
 	erts_fprintf(stderr,"\nDump:\n---------------------------------\n");
-	do_dump_tree2(ERTS_PRINT_STDERR, NULL, 1, t, 0);
+	do_dump_tree2(tb, ERTS_PRINT_STDERR, NULL, 1, t, 0);
 	erts_fprintf(stderr,"\n---------------------------------\n");
     }
     return ((rh > lh) ? rh : lh) + 1;
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index 0b63ab9ba0..c3b074f782 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -5046,31 +5046,31 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("TryMeElse\t%bpu\n", n);
+	    erts_printf("TryMeElse\t%beu\n", n);
 	    break;
 	case matchArray:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("Array\t%bpu\n", n);
+	    erts_printf("Array\t%beu\n", n);
 	    break;
 	case matchArrayBind:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("ArrayBind\t%bpu\n", n);
+	    erts_printf("ArrayBind\t%beu\n", n);
 	    break;
 	case matchTuple:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("Tuple\t%bpu\n", n);
+	    erts_printf("Tuple\t%beu\n", n);
 	    break;
 	case matchPushT:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("PushT\t%bpu\n", n);
+	    erts_printf("PushT\t%beu\n", n);
 	    break;
 	case matchPushL:
 	    ++t;
@@ -5084,13 +5084,13 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("Bind\t%bpu\n", n);
+	    erts_printf("Bind\t%beu\n", n);
 	    break;
 	case matchCmp:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("Cmp\t%bpu\n", n);
+	    erts_printf("Cmp\t%beu\n", n);
 	    break;
 	case matchEqBin:
 	    ++t;
@@ -5112,9 +5112,9 @@ void db_match_dis(Binary *bp)
 		    else
 			erts_printf(", ");
 #if defined(ARCH_64) && !HALFWORD_HEAP
-		    erts_printf("0x%016bpx", rt->data.ui[ri]);
+		    erts_printf("0x%016bex", rt->data.ui[ri]);
 #else
-		    erts_printf("0x%08bpx", rt->data.ui[ri]);
+		    erts_printf("0x%08bex", rt->data.ui[ri]);
 #endif
 		}
 	    }
@@ -5136,9 +5136,9 @@ void db_match_dis(Binary *bp)
 		    else
 			erts_printf(", ");
 #if defined(ARCH_64) && !HALFWORD_HEAP
-		    erts_printf("0x%016bpx", *et);
+		    erts_printf("0x%016bex", *et);
 #else
-		    erts_printf("0x%08bpx", *et);
+		    erts_printf("0x%08bex", *et);
 #endif
 		++et;
 		}
@@ -5190,31 +5190,31 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("MkTuple\t%bpu\n", n);
+	    erts_printf("MkTuple\t%beu\n", n);
 	    break;
 	case matchOr:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("Or\t%bpu\n", n);
+	    erts_printf("Or\t%beu\n", n);
 	    break;
 	case matchAnd:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("And\t%bpu\n", n);
+	    erts_printf("And\t%beu\n", n);
 	    break;
 	case matchOrElse:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("OrElse\t%bpu\n", n);
+	    erts_printf("OrElse\t%beu\n", n);
 	    break;
 	case matchAndAlso:
 	    ++t;
 	    n = *t;
 	    ++t;
-	    erts_printf("AndAlso\t%bpu\n", n);
+	    erts_printf("AndAlso\t%beu\n", n);
 	    break;
 	case matchCall0:
 	    ++t;
@@ -5244,19 +5244,19 @@ void db_match_dis(Binary *bp)
 	    ++t;
 	    n = (Uint) *t;
 	    ++t;
-	    erts_printf("PushV\t%bpu\n", n);
+	    erts_printf("PushV\t%beu\n", n);
 	    break;
     #if HALFWORD_HEAP
 	case matchPushVGuard:
 	    n = (Uint) *++t;
 	    ++t;
-	    erts_printf("PushVGuard\t%bpu\n", n);
+	    erts_printf("PushVGuard\t%beu\n", n);
 	    break;
     #endif
 	case matchPushVResult:
 	    n = (Uint) *++t;
 	    ++t;
-	    erts_printf("PushVResult\t%bpu\n", n);
+	    erts_printf("PushVResult\t%beu\n", n);
 	    break;
 	case matchTrue:
 	    ++t;
@@ -5367,8 +5367,8 @@ void db_match_dis(Binary *bp)
     }
     erts_printf("}\n");
     erts_printf("num_bindings: %d\n", prog->num_bindings);
-    erts_printf("heap_size: %bpu\n", prog->heap_size);
-    erts_printf("stack_offset: %bpu\n", prog->stack_offset);
+    erts_printf("heap_size: %beu\n", prog->heap_size);
+    erts_printf("stack_offset: %beu\n", prog->stack_offset);
     erts_printf("text: 0x%08x\n", (unsigned long) prog->text);
     erts_printf("stack_size: %d (words)\n", prog->heap_size-prog->stack_offset);
     
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index 13a73e01bb..401967a8de 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1999-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -282,7 +282,7 @@ typedef struct erl_drv_entry {
 				   the port */
     void (*ready_input)(ErlDrvData drv_data, ErlDrvEvent event); 
 				/* called when we have input from one of 
-				   the driver's handles) */
+				   the driver's handles */
     void (*ready_output)(ErlDrvData drv_data, ErlDrvEvent event);  
 				/* called when output is possible to one of 
 				   the driver's handles */
@@ -294,7 +294,7 @@ typedef struct erl_drv_entry {
     int (*control)(ErlDrvData drv_data, unsigned int command, char *buf, 
 		   int len, char **rbuf, int rlen); 
 				/* "ioctl" for drivers - invoked by 
-				   port_control/3) */
+				   port_control/3 */
     void (*timeout)(ErlDrvData drv_data);	/* Handling of timeout in driver */
     void (*outputv)(ErlDrvData drv_data, ErlIOVec *ev);
 				/* called when we have output from erlang
@@ -307,7 +307,7 @@ typedef struct erl_drv_entry {
 				   before 'stop' can be called */
     int (*call)(ErlDrvData drv_data, unsigned int command, char *buf, 
 		   int len, char **rbuf, int rlen, unsigned int *flags); 
-                                /* Works mostly like 'control', a syncronous
+                                /* Works mostly like 'control', a synchronous
 				   call into the driver. */
     void (*event)(ErlDrvData drv_data, ErlDrvEvent event,
 		  ErlDrvEventData event_data);
diff --git a/erts/emulator/beam/erl_drv_thread.c b/erts/emulator/beam/erl_drv_thread.c
index 39bbe9633b..dc578f6d2a 100644
--- a/erts/emulator/beam/erl_drv_thread.c
+++ b/erts/emulator/beam/erl_drv_thread.c
@@ -700,6 +700,13 @@ erl_drv_thread_join(ErlDrvTid tid, void **respp)
 extern int erts_darwin_main_thread_pipe[2];
 extern int erts_darwin_main_thread_result_pipe[2];
 
+int erl_drv_stolen_main_thread_join(ErlDrvTid tid, void **respp);
+int erl_drv_steal_main_thread(char *name,
+			      ErlDrvTid *dtid,
+			      void* (*func)(void*),
+			      void* arg,
+			      ErlDrvThreadOpts *opts);
+
 
 int
 erl_drv_stolen_main_thread_join(ErlDrvTid tid, void **respp)
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index d9150d86fe..5edcd667e7 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -215,7 +215,7 @@ erts_next_heap_size(Uint size, Uint offset)
 		low = mid + 1;
 	    }
 	}
-	erl_exit(1, "no next heap size found: %d, offset %d\n", size, offset);
+	erl_exit(1, "no next heap size found: %lu, offset %lu\n", (unsigned long)size, (unsigned long)offset);
     }
     return 0;
 }
@@ -455,7 +455,6 @@ erts_garbage_collect_hibernate(Process* p)
     Eterm* heap;
     Eterm* htop;
     Rootset rootset;
-    int n;
     char* src;
     Uint src_size;
     Uint actual_size;
@@ -486,7 +485,7 @@ erts_garbage_collect_hibernate(Process* p)
 				    sizeof(Eterm)*heap_size);
     htop = heap;
 
-    n = setup_rootset(p, p->arg_reg, p->arity, &rootset);
+    (void) setup_rootset(p, p->arg_reg, p->arity, &rootset);
 #if HIPE
     hipe_empty_nstack(p);
 #endif
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index 9e18997890..9180508a49 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -240,7 +240,7 @@ typedef struct erts_lc_locked_lock_t_ erts_lc_locked_lock_t;
 struct erts_lc_locked_lock_t_ {
     erts_lc_locked_lock_t *next;
     erts_lc_locked_lock_t *prev;
-    Eterm extra;
+    UWord extra;
     Sint16 id;
     Uint16 flags;
 };
@@ -441,12 +441,12 @@ new_locked_lock(erts_lc_lock_t *lck, Uint16 op_flags)
 }
 
 static void
-print_lock2(char *prefix, Sint16 id, Eterm extra, Uint16 flags, char *suffix)
+print_lock2(char *prefix, Sint16 id, Wterm extra, Uint16 flags, char *suffix)
 {
     char *lname = (0 <= id && id < ERTS_LOCK_ORDER_SIZE
 		   ? erts_lock_order[id].name
 		   : "unknown");
-    if (is_boxed(extra))
+    if (is_not_immed(extra))
 	erts_fprintf(stderr,
 		     "%s'%s:%p%s'%s%s",
 		     prefix,
@@ -1260,7 +1260,8 @@ erts_lc_init_lock(erts_lc_lock_t *lck, char *name, Uint16 flags)
 {
     lck->id = erts_lc_get_lock_order_id(name);
 
-    lck->extra = make_boxed(&lck->extra);
+    lck->extra = &lck->extra;
+    ASSERT(is_not_immed(lck->extra));
     lck->flags = flags;
     lck->inited = ERTS_LC_INITITALIZED;
 }
@@ -1270,6 +1271,7 @@ erts_lc_init_lock_x(erts_lc_lock_t *lck, char *name, Uint16 flags, Eterm extra)
 {
     lck->id = erts_lc_get_lock_order_id(name);
     lck->extra = extra;
+    ASSERT(is_immed(lck->extra));
     lck->flags = flags;
     lck->inited = ERTS_LC_INITITALIZED;
 }
diff --git a/erts/emulator/beam/erl_lock_check.h b/erts/emulator/beam/erl_lock_check.h
index cdb06d4458..b67f36fa06 100644
--- a/erts/emulator/beam/erl_lock_check.h
+++ b/erts/emulator/beam/erl_lock_check.h
@@ -39,7 +39,7 @@ typedef struct {
     int inited;
     Sint16 id;
     Uint16 flags;
-    Eterm extra;
+    UWord extra;
 } erts_lc_lock_t;
 
 #define ERTS_LC_INITITALIZED 0x7f7f7f7f
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 135c6b0ccc..68421b4387 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -430,6 +430,11 @@ int enif_is_list(ErlNifEnv* env, ERL_NIF_TERM term)
     return is_list(term) || is_nil(term);
 }
 
+int enif_is_exception(ErlNifEnv* env, ERL_NIF_TERM term)
+{
+    return term == THE_NON_VALUE;
+}
+
 static void aligned_binary_dtor(struct enif_tmp_obj_t* obj)
 {
     erts_free_aligned_binary_bytes_extra((byte*)obj,ERTS_ALC_T_TMP);
@@ -467,7 +472,7 @@ static void tmp_alloc_dtor(struct enif_tmp_obj_t* obj)
 int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin)
 {
     struct enif_tmp_obj_t* tobj;
-    int sz;
+    Uint sz;
     if (is_binary(term)) {
 	return enif_inspect_binary(env,term,bin);
     }
@@ -478,7 +483,7 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin)
 	bin->ref_bin = NULL;
 	return 1;
     }
-    if ((sz = io_list_len(term)) < 0) {
+    if (erts_iolist_size(term, &sz)) {
 	return 0;
     }
     
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 8050b3640a..d028567faf 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -31,9 +31,10 @@
 ** 1.0: R13B04
 ** 2.0: R14A
 ** 2.1: R14B02 "vm_variant"
+** 2.2: R14B03 enif_is_exception
 */
 #define ERL_NIF_MAJOR_VERSION 2
-#define ERL_NIF_MINOR_VERSION 1
+#define ERL_NIF_MINOR_VERSION 2
 
 #include <stdlib.h>
 
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index eca506593d..c991b61abe 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2009-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2009-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -21,6 +21,13 @@
 #  error This file should not be included directly
 #endif
 
+/*
+** WARNING: add new ERL_NIF_API_FUNC_DECL entries at the bottom of the list
+** to keep compatibility on Windows!!!
+**
+** And don't forget to increase ERL_NIF_MINOR_VERSION in erl_nif.h
+** when adding functions to the API.
+*/
 #ifdef ERL_NIF_API_FUNC_DECL
 ERL_NIF_API_FUNC_DECL(void*,enif_priv_data,(ErlNifEnv*));
 ERL_NIF_API_FUNC_DECL(void*,enif_alloc,(size_t size));
@@ -128,12 +135,17 @@ ERL_NIF_API_FUNC_DECL(int,enif_get_uint64,(ErlNifEnv*, ERL_NIF_TERM term, ErlNif
 ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_int64,(ErlNifEnv*, ErlNifSInt64));
 ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_uint64,(ErlNifEnv*, ErlNifUInt64));
 #endif
+ERL_NIF_API_FUNC_DECL(int,enif_is_exception,(ErlNifEnv*, ERL_NIF_TERM term));
 
 /*
-** Add last to keep compatibility on Windows!!!
+** Add new entries here to keep compatibility on Windows!!!
 */
 #endif
 
+/*
+** Please keep the ERL_NIF_API_FUNC_MACRO list below in the same order
+** as the ERL_NIF_API_FUNC_DECL list above
+*/
 #ifdef ERL_NIF_API_FUNC_MACRO
 #  define enif_priv_data ERL_NIF_API_FUNC_MACRO(enif_priv_data)
 #  define enif_alloc ERL_NIF_API_FUNC_MACRO(enif_alloc)
@@ -243,6 +255,11 @@ ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_uint64,(ErlNifEnv*, ErlNifUInt64));
 #  define enif_make_uint64 ERL_NIF_API_FUNC_MACRO(enif_make_uint64)
 #endif
 
+#  define enif_is_exception ERL_NIF_API_FUNC_MACRO(enif_is_exception)
+
+/*
+** Add new entries here
+*/
 #endif
 
 #ifndef enif_make_list1
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 1b07024ca1..e6b55c45e4 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2006-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -658,8 +658,6 @@ erts_port_task_free_port(Port *pp)
 	   when scheduled out... */
 	ErtsPortTask *ptp = port_task_alloc();
 	erts_smp_port_state_lock(pp);
-	ASSERT(erts_smp_atomic_read(&erts_ports_alive) > 0);
-	erts_smp_atomic_dec(&erts_ports_alive);
 	pp->status &= ~ERTS_PORT_SFLG_CLOSING;
 	pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
 	erts_may_save_closed_port(pp);
@@ -681,7 +679,6 @@ erts_port_task_free_port(Port *pp)
 	    port_is_dequeued = 1;
 	}
 	erts_smp_port_state_lock(pp);
-	erts_smp_atomic_dec(&erts_ports_alive);
 	pp->status &= ~ERTS_PORT_SFLG_CLOSING;
 	pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
 	erts_may_save_closed_port(pp);
diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c
index d9f132f067..34da9cab84 100644
--- a/erts/emulator/beam/erl_printf_term.c
+++ b/erts/emulator/beam/erl_printf_term.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2005-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -114,13 +114,13 @@ do {									\
 /* return 0 if list is not a non-empty flat list of printable characters */
 
 static int
-is_printable_string(Eterm list)
+is_printable_string(Eterm list, Eterm* base)
 {
     int len = 0;
     int c;
 
     while(is_list(list)) {
-	Eterm* consp = list_val(list);
+	Eterm* consp = list_val_rel(list, base);
 	Eterm hd = CAR(consp);
 
 	if (!is_byte(hd))
@@ -216,240 +216,289 @@ static int print_atom_name(fmtfn_t fn, void* arg, Eterm atom, long *dcount)
 }
 
 
+#define PRT_BAR ((Eterm) 0)
+#define PRT_COMMA ((Eterm) 1)
+#define PRT_CLOSE_LIST ((Eterm) 2)
+#define PRT_CLOSE_TUPLE ((Eterm) 3)
+#define PRT_TERM ((Eterm) 4)
+#define PRT_ONE_CONS ((Eterm) 5)
+#define PRT_PATCH_FUN_SIZE ((Eterm) 6)
+#define PRT_LAST_ARRAY_ELEMENT ((Eterm) 7) /* Note! Must be last... */
 
 static int
-print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount)
+print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
+	   Eterm* obj_base) /* ignored if !HALFWORD_HEAP */
 {
+    DECLARE_WSTACK(s);
     int res;
     int i;
+    Eterm val;
     Uint32 *ref_num;
+    union {
+	UWord word;
+	Eterm* ptr;
+    }popped;
     Eterm* nobj;
+    Wterm wobj;
 
     res = 0;
 
-    if ((*dcount)-- <= 0)
-	return res;
+    goto L_jump_start;
+
+ L_outer_loop:
+    while (!WSTACK_ISEMPTY(s)) {
+	switch (val = WSTACK_POP(s)) {
+	case PRT_COMMA:
+	    PRINT_CHAR(res, fn, arg, ',');
+	    goto L_outer_loop;
+	case PRT_BAR:
+	    PRINT_CHAR(res, fn, arg, '|');
+	    goto L_outer_loop;
+	case PRT_CLOSE_LIST:
+	    PRINT_CHAR(res, fn, arg, ']');
+	    goto L_outer_loop;
+	case PRT_CLOSE_TUPLE:
+	    PRINT_CHAR(res, fn, arg, '}');
+	    goto L_outer_loop;
+	default:
+	    popped.word = WSTACK_POP(s);
 
-#ifdef HYBRID___NOT_ACTIVE
-    /* Color coded output based on memory location */
-    if(ptr_val(obj) >= global_heap && ptr_val(obj) < global_hend)
-        PRINT_STRING(res, fn, arg, "\033[32m");
-#ifdef INCREMENTAL
-    else if(ptr_val(obj) >= inc_fromspc && ptr_val(obj) < inc_fromend)
-        PRINT_STRING(res, fn, arg, "\033[33m");
-#endif
-    else if(IS_CONST(obj))
-        PRINT_STRING(res, fn, arg, "\033[34m");
-    else
-        PRINT_STRING(res, fn, arg, "\033[31m");
-#endif
+	    switch (val) {
+	    case PRT_TERM:
+		obj = (Eterm) popped.word;
+		break;
+	    case PRT_ONE_CONS:
+		obj = (Eterm) popped.word;
+	    L_print_one_cons:
+		{
+		    Eterm* cons = list_val_rel(obj, obj_base);
+		    Eterm tl;
+		    
+		    obj = CAR(cons);
+		    tl = CDR(cons);
+		    if (is_not_nil(tl)) {
+			if (is_list(tl)) {
+			    WSTACK_PUSH(s, tl);
+			    WSTACK_PUSH(s, PRT_ONE_CONS);
+			    WSTACK_PUSH(s, PRT_COMMA);
+			} else {
+			    WSTACK_PUSH(s, tl);
+			    WSTACK_PUSH(s, PRT_TERM);
+			    WSTACK_PUSH(s, PRT_BAR);
+			}
+		    }
+		}
+		break;
+	    case PRT_LAST_ARRAY_ELEMENT:
+		obj = *popped.ptr;
+		break;
+	    default:		/* PRT_LAST_ARRAY_ELEMENT+1 and upwards */
+		obj = *popped.ptr;
+	        WSTACK_PUSH(s, (UWord) (popped.ptr + 1));
+		WSTACK_PUSH(s, val-1);
+		WSTACK_PUSH(s, PRT_COMMA);
+		break;
+	    }
+	    break;
+	}
 
-    if (is_CP(obj)) {
-	PRINT_STRING(res, fn, arg, "<cp/header:");
-	PRINT_POINTER(res, fn, arg, cp_val(obj));
-	PRINT_CHAR(res, fn, arg, '>');
-	return res;
-    }
+    L_jump_start:
 
-    switch (tag_val_def(obj)) {
-    case NIL_DEF:
-	PRINT_STRING(res, fn, arg, "[]");
-	break;
-    case ATOM_DEF: {
-	int tres = print_atom_name(fn, arg, obj, dcount);
-	if (tres < 0)
-	    return tres;
-	res += tres;
-	if (*dcount <= 0)
-	    return res;
-	break;
-    }
-    case SMALL_DEF:
-	PRINT_SLONG(res, fn, arg, 'd', 0, 1, (signed long) signed_val(obj));
-	break;
-    case BIG_DEF: {
-	int print_res;
-	char def_buf[64];
-	char *buf, *big_str;
-	Uint sz = (Uint) big_decimal_estimate(obj);
-	sz++;
-	if (sz <= 64)
-	    buf = &def_buf[0];
-	else
-	    buf = erts_alloc(ERTS_ALC_T_TMP, sz);
-	big_str = erts_big_to_string(obj, buf, sz);
-	print_res = erts_printf_string(fn, arg, big_str);
-	if (buf != &def_buf[0])
-	    erts_free(ERTS_ALC_T_TMP, (void *) buf);
-	if (print_res < 0)
-	    return print_res;
-	res += print_res;
-	break;
-    }
-    case REF_DEF:
-    case EXTERNAL_REF_DEF:
-	PRINT_STRING(res, fn, arg, "#Ref<");
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) ref_channel_no(obj));
-	ref_num = ref_numbers(obj);
-	for (i = ref_no_of_numbers(obj)-1; i >= 0; i--) {
-	    PRINT_CHAR(res, fn, arg, '.');
-	    PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) ref_num[i]);
+	if ((*dcount)-- <= 0)
+	    goto L_done;
+
+	if (is_CP(obj)) {
+	    PRINT_STRING(res, fn, arg, "<cp/header:");
+	    PRINT_POINTER(res, fn, arg, cp_val(obj));
+	    PRINT_CHAR(res, fn, arg, '>');
+	    goto L_done;
 	}
-	PRINT_CHAR(res, fn, arg, '>');
-	break;
-    case PID_DEF:
-    case EXTERNAL_PID_DEF:
-	PRINT_CHAR(res, fn, arg, '<');
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) pid_channel_no(obj));
-	PRINT_CHAR(res, fn, arg, '.');
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) pid_number(obj));
-	PRINT_CHAR(res, fn, arg, '.');
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) pid_serial(obj));
-	PRINT_CHAR(res, fn, arg, '>');
-	break;
-    case PORT_DEF:
-    case EXTERNAL_PORT_DEF:
-	PRINT_STRING(res, fn, arg, "#Port<");
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) port_channel_no(obj));
-	PRINT_CHAR(res, fn, arg, '.');
-	PRINT_ULONG(res, fn, arg, 'u', 0, 1,
-		    (unsigned long) port_number(obj));
-	PRINT_CHAR(res, fn, arg, '>');
-	break;
-    case LIST_DEF:
-	if (is_printable_string(obj)) {
-	    int c;
-	    PRINT_CHAR(res, fn, arg, '"');
-	    nobj = list_val(obj);
-	    while (1) {
-		if ((*dcount)-- <= 0)
-		    return res;
-		c = signed_val(*nobj++);
-		if (c == '\n')
-		    PRINT_STRING(res, fn, arg, "\\n");
-		else {
-		    if (c == '"')
-			PRINT_CHAR(res, fn, arg, '\\');
-		    PRINT_CHAR(res, fn, arg, (char) c);
-		}
-		if (is_not_list(*nobj))
-		    break;
-		nobj = list_val(*nobj);
-	    }
-	    PRINT_CHAR(res, fn, arg, '"');
-	} else {
-	    PRINT_CHAR(res, fn, arg, '[');
-	    nobj = list_val(obj);
-	    while (1) {
-		int tres = print_term(fn, arg, *nobj++, dcount);
-		if (tres < 0)
-		    return tres;
-		res += tres;
-		if (*dcount <= 0)
-		    return res;
-		if (is_not_list(*nobj))
-		    break;
-		PRINT_CHAR(res, fn, arg, ',');
-		nobj = list_val(*nobj);
-	    }
-	    if (is_not_nil(*nobj)) {
-		int tres;
-		PRINT_CHAR(res, fn, arg, '|');
-		tres = print_term(fn, arg, *nobj, dcount);
-		if (tres < 0)
-		    return tres;
-		res += tres;
-		if (*dcount <= 0)
-		    return res;
+#if HALFWORD_HEAP
+	wobj = is_immed(obj) ? (Wterm)obj : rterm2wterm(obj, obj_base);
+#else
+	wobj = (Wterm)obj;
+#endif
+	switch (tag_val_def(wobj)) {
+	case NIL_DEF:
+	    PRINT_STRING(res, fn, arg, "[]");
+	    break;
+	case ATOM_DEF: {
+	    int tres = print_atom_name(fn, arg, obj, dcount);
+	    if (tres < 0) {
+		res = tres;
+		goto L_done;
 	    }
-	    PRINT_CHAR(res, fn, arg, ']');
-	}
-	break;
-    case TUPLE_DEF:
-	nobj = tuple_val(obj);	/* pointer to arity */
-	i = arityval(*nobj);	/* arity */
-	PRINT_CHAR(res, fn, arg, '{');
-	while (i--) {
-	    int tres = print_term(fn, arg, *++nobj, dcount);
-	    if (tres < 0)
-		return tres;
 	    res += tres;
 	    if (*dcount <= 0)
-		return res;
-	    if (i >= 1)
-		PRINT_CHAR(res, fn, arg, ',');
-	}
-	PRINT_CHAR(res, fn, arg, '}');
-	break;
-    case FLOAT_DEF: {
-	    FloatDef ff;
-	    GET_DOUBLE(obj, ff);
-	    PRINT_DOUBLE(res, fn, arg, 'e', 6, 0, ff.fd);
+		goto L_done;
+	    break;
 	}
-	break;
-    case BINARY_DEF:
-	{
-	    ProcBin* pb = (ProcBin *) binary_val(obj);
-	    if (pb->size == 1)
-		PRINT_STRING(res, fn, arg, "<<1 byte>>");
-	    else {
-		PRINT_STRING(res, fn, arg, "<<");
-		PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) pb->size);
-		PRINT_STRING(res, fn, arg, " bytes>>");
+	case SMALL_DEF:
+	    PRINT_SLONG(res, fn, arg, 'd', 0, 1, (signed long) signed_val(obj));
+	    break;
+	case BIG_DEF: {
+	    int print_res;
+	    char def_buf[64];
+	    char *buf, *big_str;
+	    Uint sz = (Uint) big_decimal_estimate(wobj);
+	    sz++;
+	    if (sz <= 64)
+		buf = &def_buf[0];
+	    else
+		buf = erts_alloc(ERTS_ALC_T_TMP, sz);
+	    big_str = erts_big_to_string(wobj, buf, sz);
+	    print_res = erts_printf_string(fn, arg, big_str);
+	    if (buf != &def_buf[0])
+		erts_free(ERTS_ALC_T_TMP, (void *) buf);
+	    if (print_res < 0) {
+		res = print_res;
+		goto L_done;
 	    }
+	    res += print_res;
+	    break;
 	}
-	break;
-    case EXPORT_DEF:
-	{
-	    Export* ep = *((Export **) (export_val(obj) + 1));
-	    Atom* module = atom_tab(atom_val(ep->code[0]));
-	    Atom* name = atom_tab(atom_val(ep->code[1]));
-
-	    PRINT_STRING(res, fn, arg, "#Fun<");
-	    PRINT_BUF(res, fn, arg, module->name, module->len);
+	case REF_DEF:
+	case EXTERNAL_REF_DEF:
+	    PRINT_STRING(res, fn, arg, "#Ref<");
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) ref_channel_no(wobj));
+	    ref_num = ref_numbers(wobj);
+	    for (i = ref_no_of_numbers(wobj)-1; i >= 0; i--) {
+		PRINT_CHAR(res, fn, arg, '.');
+		PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) ref_num[i]);
+	    }
+	    PRINT_CHAR(res, fn, arg, '>');
+	    break;
+	case PID_DEF:
+	case EXTERNAL_PID_DEF:
+	    PRINT_CHAR(res, fn, arg, '<');
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) pid_channel_no(wobj));
 	    PRINT_CHAR(res, fn, arg, '.');
-	    PRINT_BUF(res, fn, arg, name->name, name->len);
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) pid_number(wobj));
 	    PRINT_CHAR(res, fn, arg, '.');
-	    PRINT_SLONG(res, fn, arg, 'd', 0, 1,
-			(signed long) ep->code[2]);
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) pid_serial(wobj));
 	    PRINT_CHAR(res, fn, arg, '>');
-	}
-	break;
-    case FUN_DEF:
-	{
-	    ErlFunThing *funp = (ErlFunThing *) fun_val(obj);
-	    Atom *ap = atom_tab(atom_val(funp->fe->module));
-
-	    PRINT_STRING(res, fn, arg, "#Fun<");
-	    PRINT_BUF(res, fn, arg, ap->name, ap->len);
-	    PRINT_CHAR(res, fn, arg, '.');
-	    PRINT_SLONG(res, fn, arg, 'd', 0, 1,
-			(signed long) funp->fe->old_index);
+	    break;
+	case PORT_DEF:
+	case EXTERNAL_PORT_DEF:
+	    PRINT_STRING(res, fn, arg, "#Port<");
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) port_channel_no(wobj));
 	    PRINT_CHAR(res, fn, arg, '.');
-	    PRINT_SLONG(res, fn, arg, 'd', 0, 1,
-			(signed long) funp->fe->old_uniq);
+	    PRINT_ULONG(res, fn, arg, 'u', 0, 1,
+			(unsigned long) port_number(wobj));
+	    PRINT_CHAR(res, fn, arg, '>');
+	    break;
+	case LIST_DEF:
+	    if (is_printable_string(obj, obj_base)) {
+		int c;
+		PRINT_CHAR(res, fn, arg, '"');
+		nobj = list_val_rel(obj, obj_base);
+		while (1) {
+		    if ((*dcount)-- <= 0)
+			goto L_done;
+		    c = signed_val(*nobj++);
+		    if (c == '\n')
+			PRINT_STRING(res, fn, arg, "\\n");
+		    else {
+			if (c == '"')
+			    PRINT_CHAR(res, fn, arg, '\\');
+			PRINT_CHAR(res, fn, arg, (char) c);
+		    }
+		    if (is_not_list(*nobj))
+			break;
+		    nobj = list_val_rel(*nobj, obj_base);
+		}
+		PRINT_CHAR(res, fn, arg, '"');
+	    } else {
+		PRINT_CHAR(res, fn, arg, '[');
+		WSTACK_PUSH(s,PRT_CLOSE_LIST);
+		goto L_print_one_cons;
+	    }
+	    break;
+	case TUPLE_DEF:
+	    nobj = tuple_val(wobj);	/* pointer to arity */
+	    i = arityval(*nobj);	/* arity */
+	    PRINT_CHAR(res, fn, arg, '{');
+	    WSTACK_PUSH(s,PRT_CLOSE_TUPLE);
+	    ++nobj;
+	    if (i > 0) {
+		WSTACK_PUSH(s, (UWord) nobj);
+		WSTACK_PUSH(s, PRT_LAST_ARRAY_ELEMENT+i-1);
+	    }
+	    break;
+	case FLOAT_DEF: {
+	    FloatDef ff;
+	    GET_DOUBLE(wobj, ff);
+	    PRINT_DOUBLE(res, fn, arg, 'e', 6, 0, ff.fd);
+	}
+	    break;
+	case BINARY_DEF:
+	    {
+		ProcBin* pb = (ProcBin *) binary_val(wobj);
+		if (pb->size == 1)
+		    PRINT_STRING(res, fn, arg, "<<1 byte>>");
+		else {
+		    PRINT_STRING(res, fn, arg, "<<");
+		    PRINT_ULONG(res, fn, arg, 'u', 0, 1, (unsigned long) pb->size);
+		    PRINT_STRING(res, fn, arg, " bytes>>");
+		}
+	    }
+	    break;
+	case EXPORT_DEF:
+	    {
+		Export* ep = *((Export **) (export_val(wobj) + 1));
+		Atom* module = atom_tab(atom_val(ep->code[0]));
+		Atom* name = atom_tab(atom_val(ep->code[1]));
+
+		PRINT_STRING(res, fn, arg, "#Fun<");
+		PRINT_BUF(res, fn, arg, module->name, module->len);
+		PRINT_CHAR(res, fn, arg, '.');
+		PRINT_BUF(res, fn, arg, name->name, name->len);
+		PRINT_CHAR(res, fn, arg, '.');
+		PRINT_SLONG(res, fn, arg, 'd', 0, 1,
+			    (signed long) ep->code[2]);
+		PRINT_CHAR(res, fn, arg, '>');
+	    }
+	    break;
+	case FUN_DEF:
+	    {
+		ErlFunThing *funp = (ErlFunThing *) fun_val(wobj);
+		Atom *ap = atom_tab(atom_val(funp->fe->module));
+
+		PRINT_STRING(res, fn, arg, "#Fun<");
+		PRINT_BUF(res, fn, arg, ap->name, ap->len);
+		PRINT_CHAR(res, fn, arg, '.');
+		PRINT_SLONG(res, fn, arg, 'd', 0, 1,
+			    (signed long) funp->fe->old_index);
+		PRINT_CHAR(res, fn, arg, '.');
+		PRINT_SLONG(res, fn, arg, 'd', 0, 1,
+			    (signed long) funp->fe->old_uniq);
+		PRINT_CHAR(res, fn, arg, '>');
+	    }
+	    break;
+	default:
+	    PRINT_STRING(res, fn, arg, "<unknown:");
+	    PRINT_POINTER(res, fn, arg, wobj);
 	    PRINT_CHAR(res, fn, arg, '>');
+	    break;
 	}
-	break;
-    default:
-	PRINT_STRING(res, fn, arg, "<unknown:");
-	PRINT_POINTER(res, fn, arg, (UWord) obj);
-	PRINT_CHAR(res, fn, arg, '>');
-	break;
     }
 
+ L_done:
+    
+    DESTROY_WSTACK(s);
     return res;
 }
 
 int
-erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision)
+erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision,
+		 unsigned long* term_base)
 {
-    int res = print_term(fn, arg, (Uint) term, &precision);
+    int res = print_term(fn, arg, (Eterm)term, &precision, (Eterm*)term_base);
     if (res < 0)
 	return res;
     if (precision <= 0)
diff --git a/erts/emulator/beam/erl_printf_term.h b/erts/emulator/beam/erl_printf_term.h
index 4f76028396..a48a3de34c 100644
--- a/erts/emulator/beam/erl_printf_term.h
+++ b/erts/emulator/beam/erl_printf_term.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -21,6 +21,6 @@
 #define ERL_PRINTF_TERM_H__
 
 #include "erl_printf_format.h"
-int erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision);
-
+int erts_printf_term(fmtfn_t fn, void* arg, unsigned long term, long precision,
+		     unsigned long* term_base);
 #endif
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 21625921d5..2704359a8f 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -166,9 +166,8 @@ static struct {
 
 static struct {
     erts_smp_mtx_t update_mtx;
-    erts_smp_atomic32_t active_runqs;
+    erts_smp_atomic32_t no_runqs;
     int last_active_runqs;
-    erts_smp_atomic32_t used_runqs;
     int forced_check_balance;
     erts_smp_atomic32_t checking_balance;
     int halftime;
@@ -965,7 +964,7 @@ sched_spin_wait(ErtsSchedulerSleepInfo *ssi, int spincount)
     erts_aint32_t flgs;
 
     do {
-	flgs = erts_smp_atomic32_read(&ssi->flags);
+	flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
 	if ((flgs & (ERTS_SSI_FLG_SLEEPING|ERTS_SSI_FLG_WAITING))
 	    != (ERTS_SSI_FLG_SLEEPING|ERTS_SSI_FLG_WAITING)) {
 	    break;
@@ -1114,7 +1113,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
     else {
 	erts_aint_t dt;
 
-	erts_smp_atomic32_set(&function_calls, 0);
+	erts_smp_atomic32_set_relb(&function_calls, 0);
 	*fcalls = 0;
 
 	sched_waiting_sys(esdp->no, rq);
@@ -1147,7 +1146,7 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 	    nonblockable_aux_work(esdp, ssi, aux_work);
 #endif
 
-	    flgs = erts_smp_atomic32_read(&ssi->flags);
+	    flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
 	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
 		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
 		goto sys_woken;
@@ -1267,7 +1266,6 @@ ssi_flags_set_wake(ErtsSchedulerSleepInfo *ssi)
 static void
 wake_scheduler(ErtsRunQueue *rq, int incq, int one)
 {
-    int res;
     ErtsSchedulerSleepInfo *ssi;
     ErtsSchedulerSleepList *sl;
 
@@ -1298,7 +1296,6 @@ wake_scheduler(ErtsRunQueue *rq, int incq, int one)
 	if (ssi->next)
 	    ssi->next->prev = ssi->prev;
 
-	res = sl->list != NULL;
 	erts_smp_spin_unlock(&sl->lock);
 
 	ERTS_THR_MEMORY_BARRIER;
@@ -1335,6 +1332,76 @@ wake_all_schedulers(void)
     }
 }
 
+#define ERTS_NO_USED_RUNQS_SHIFT 16
+#define ERTS_NO_RUNQS_MASK 0xffff
+
+#if ERTS_MAX_NO_OF_SCHEDULERS > ERTS_NO_RUNQS_MASK
+#  error "Too large amount of schedulers allowed"
+#endif
+
+static ERTS_INLINE void
+init_no_runqs(int active, int used)
+{
+    erts_aint32_t no_runqs = (erts_aint32_t) (active & ERTS_NO_RUNQS_MASK);
+    no_runqs |= (erts_aint32_t) ((used & ERTS_NO_RUNQS_MASK) << ERTS_NO_USED_RUNQS_SHIFT);
+    erts_smp_atomic32_init(&balance_info.no_runqs, no_runqs);
+}
+
+static ERTS_INLINE void
+get_no_runqs(int *active, int *used)
+{
+    erts_aint32_t no_runqs = erts_smp_atomic32_read(&balance_info.no_runqs);
+    if (active)
+	*active = (int) (no_runqs & ERTS_NO_RUNQS_MASK);
+    if (used)
+	*used = (int) ((no_runqs >> ERTS_NO_USED_RUNQS_SHIFT) & ERTS_NO_RUNQS_MASK);
+}
+
+static ERTS_INLINE void
+set_no_used_runqs(int used)
+{
+    erts_aint32_t exp = erts_smp_atomic32_read(&balance_info.no_runqs);
+    while (1) {
+	erts_aint32_t act, new;
+	new = (used << ERTS_NO_USED_RUNQS_SHIFT) | (exp & ERTS_NO_RUNQS_MASK);
+	act = erts_smp_atomic32_cmpxchg(&balance_info.no_runqs, new, exp);
+	if (act == exp)
+	    break;
+	exp = act;
+    }
+}
+
+static ERTS_INLINE void
+set_no_active_runqs(int active)
+{
+    erts_aint32_t exp = erts_smp_atomic32_read(&balance_info.no_runqs);
+    while (1) {
+	erts_aint32_t act, new;
+	new = (exp & (ERTS_NO_RUNQS_MASK << ERTS_NO_USED_RUNQS_SHIFT)) | active;
+	act = erts_smp_atomic32_cmpxchg(&balance_info.no_runqs, new, exp);
+	if (act == exp)
+	    break;
+	exp = act;
+    }
+}
+
+static ERTS_INLINE int
+try_inc_no_active_runqs(int active)
+{
+    erts_aint32_t exp = erts_smp_atomic32_read(&balance_info.no_runqs);
+    if (((exp >> ERTS_NO_USED_RUNQS_SHIFT) & ERTS_NO_RUNQS_MASK) < active)
+	return 0;
+    if ((exp & ERTS_NO_RUNQS_MASK) + 1 == active) {
+	erts_aint32_t new, act;
+	new = (exp & ~ERTS_NO_RUNQS_MASK) | active;
+	act = erts_smp_atomic32_cmpxchg(&balance_info.no_runqs, new, exp);
+	if (act == exp)
+	    return 1;
+    }
+    return 0;
+}
+
+
 static ERTS_INLINE int
 chk_wake_sched(ErtsRunQueue *crq, int ix, int activate)
 {
@@ -1346,9 +1413,7 @@ chk_wake_sched(ErtsRunQueue *crq, int ix, int activate)
     iflgs = erts_smp_atomic32_read(&wrq->info_flags);
     if (!(iflgs & (ERTS_RUNQ_IFLG_SUSPENDED|ERTS_RUNQ_IFLG_NONEMPTY))) {
 	if (activate) {
-	    if (ix == erts_smp_atomic32_cmpxchg(&balance_info.active_runqs,
-						ix+1,
-						ix)) {
+	    if (try_inc_no_active_runqs(ix+1)) {
 		erts_smp_xrunq_lock(crq, wrq);
 		wrq->flags &= ~ERTS_RUNQ_FLG_INACTIVE;
 		erts_smp_xrunq_unlock(crq, wrq);
@@ -1365,8 +1430,9 @@ wake_scheduler_on_empty_runq(ErtsRunQueue *crq)
 {
     int ix = crq->ix;
     int stop_ix = ix;
-    int active_ix = erts_smp_atomic32_read(&balance_info.active_runqs);
-    int balance_ix = erts_smp_atomic32_read(&balance_info.used_runqs);
+    int active_ix, balance_ix;
+
+    get_no_runqs(&active_ix, &balance_ix);
 
     if (active_ix > balance_ix)
 	active_ix = balance_ix;
@@ -1418,7 +1484,7 @@ erts_sched_notify_check_cpu_bind(void)
     int ix;
     if (erts_common_run_queue) {
 	for (ix = 0; ix < erts_no_schedulers; ix++)
-	    erts_smp_atomic32_set(&ERTS_SCHEDULER_IX(ix)->chk_cpu_bind, 1);
+	    erts_smp_atomic32_set_relb(&ERTS_SCHEDULER_IX(ix)->chk_cpu_bind, 1);
 	wake_all_schedulers();
     }
     else {
@@ -1873,8 +1939,7 @@ try_steal_task(ErtsRunQueue *rq)
 
     ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, rq_locked);
 
-    active_rqs = erts_smp_atomic32_read(&balance_info.active_runqs);
-    blnc_rqs = erts_smp_atomic32_read(&balance_info.used_runqs);
+    get_no_runqs(&active_rqs, &blnc_rqs);
 
     if (active_rqs > blnc_rqs)
 	active_rqs = blnc_rqs;
@@ -1885,7 +1950,7 @@ try_steal_task(ErtsRunQueue *rq)
 	if (active_rqs < blnc_rqs) {
 	    int no = blnc_rqs - active_rqs;
 	    int stop_ix = vix = active_rqs + rq->ix % no;
-	    while (erts_smp_atomic32_read(&no_empty_run_queues) < blnc_rqs) {
+	    while (erts_smp_atomic32_read_acqb(&no_empty_run_queues) < blnc_rqs) {
 		res = check_possible_steal_victim(rq, &rq_locked, vix);
 		if (res)
 		    goto done;
@@ -1900,7 +1965,7 @@ try_steal_task(ErtsRunQueue *rq)
 	vix = rq->ix;
 
 	/* ... then try to steal a job from another active queue... */
-	while (erts_smp_atomic32_read(&no_empty_run_queues) < blnc_rqs) {
+	while (erts_smp_atomic32_read_acqb(&no_empty_run_queues) < blnc_rqs) {
 	    vix++;
 	    if (vix >= active_rqs)
 		vix = 0;
@@ -2001,7 +2066,7 @@ check_balance(ErtsRunQueue *c_rq)
 	return;
     }
 
-    blnc_no_rqs = (int) erts_smp_atomic32_read(&balance_info.used_runqs);
+    get_no_runqs(NULL, &blnc_no_rqs);
     if (blnc_no_rqs == 1) {
 	c_rq->check_balance_reds = INT_MAX;
 	erts_smp_atomic32_set(&balance_info.checking_balance, 0);
@@ -2040,7 +2105,8 @@ check_balance(ErtsRunQueue *c_rq)
     forced = balance_info.forced_check_balance;
     balance_info.forced_check_balance = 0;
 
-    blnc_no_rqs = (int) erts_smp_atomic32_read(&balance_info.used_runqs);
+    get_no_runqs(&current_active, &blnc_no_rqs);
+
     if (blnc_no_rqs == 1) {
 	erts_smp_mtx_unlock(&balance_info.update_mtx);
 	erts_smp_runq_lock(c_rq);
@@ -2054,8 +2120,6 @@ check_balance(ErtsRunQueue *c_rq)
     if (balance_info.full_reds_history_index >= ERTS_FULL_REDS_HISTORY_SIZE)
 	balance_info.full_reds_history_index = 0;
 
-    current_active = erts_smp_atomic32_read(&balance_info.active_runqs);
-
     /* Read balance information for all run queues */
     for (qix = 0; qix < blnc_no_rqs; qix++) {
 	ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
@@ -2389,7 +2453,7 @@ erts_fprintf(stderr, "--------------------------------\n");
     }
 
     balance_info.last_active_runqs = active;
-    erts_smp_atomic32_set(&balance_info.active_runqs, active);
+    set_no_active_runqs(active);
 
     balance_info.halftime = 1;
     erts_smp_atomic32_set(&balance_info.checking_balance, 0);
@@ -2697,9 +2761,8 @@ erts_init_scheduling(int mrq, int no_schedulers, int no_schedulers_online)
     erts_smp_atomic32_init(&schdlr_sspnd.msb.ongoing, 0);
     erts_smp_atomic32_init(&schdlr_sspnd.active, no_schedulers);
     schdlr_sspnd.msb.procs = NULL;
-    erts_smp_atomic32_set(&balance_info.used_runqs,
-			  erts_common_run_queue ? 1 : no_schedulers_online);
-    erts_smp_atomic32_init(&balance_info.active_runqs, no_schedulers);
+    init_no_runqs(no_schedulers,
+		  erts_common_run_queue ? 1 : no_schedulers_online);
     balance_info.last_active_runqs = no_schedulers;
     erts_smp_mtx_init(&balance_info.update_mtx, "migration_info_update");
     balance_info.forced_check_balance = 0;
@@ -2941,7 +3004,7 @@ sched_spin_suspended(ErtsSchedulerSleepInfo *ssi, int spincount)
     erts_aint32_t flgs;
 
     do {
-	flgs = erts_smp_atomic32_read(&ssi->flags);
+	flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
 	if ((flgs & (ERTS_SSI_FLG_SLEEPING
 		     | ERTS_SSI_FLG_WAITING
 		     | ERTS_SSI_FLG_SUSPENDED))
@@ -3070,7 +3133,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 		wake = 0;
 	    }
 
-	    flgs = erts_smp_atomic32_read(&ssi->flags);
+	    flgs = erts_smp_atomic32_read_acqb(&ssi->flags);
 	    if (!(flgs & ERTS_SSI_FLG_SUSPENDED))
 		break;
 	    erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
@@ -3294,7 +3357,7 @@ erts_set_schedulers_online(Process *p,
 			ErtsRunQueue *to_rq = ERTS_RUNQ_IX(ix % no);
 			evacuate_run_queue(from_rq, to_rq);
 		    }
-		    erts_smp_atomic32_set(&balance_info.used_runqs, no);
+		    set_no_used_runqs(no);
 		    erts_smp_mtx_unlock(&balance_info.update_mtx);
 		    erts_smp_mtx_lock(&schdlr_sspnd.mtx);
 		}
@@ -3348,7 +3411,7 @@ erts_set_schedulers_online(Process *p,
 		    for (ix = erts_no_run_queues-1; ix >= no; ix--)
 			evacuate_run_queue(ERTS_RUNQ_IX(ix),
 					   ERTS_RUNQ_IX(ix % no));
-		    erts_smp_atomic32_set(&balance_info.used_runqs, no);
+		    set_no_used_runqs(no);
 		    erts_smp_mtx_unlock(&balance_info.update_mtx);
 		    erts_smp_mtx_lock(&schdlr_sspnd.mtx);
 		    for (ix = no; ix < online; ix++) {
@@ -3445,7 +3508,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
 		else {
 		    erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
 		    erts_smp_mtx_lock(&balance_info.update_mtx);
-		    erts_smp_atomic32_set(&balance_info.used_runqs, 1);
+		    set_no_used_runqs(1);
 		    for (ix = 0; ix < online; ix++) {
 			ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
 			erts_smp_runq_lock(rq);
@@ -3582,7 +3645,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
 		    evacuate_run_queue(ERTS_RUNQ_IX(ix),
 				       ERTS_RUNQ_IX(ix % online));
 
-		erts_smp_atomic32_set(&balance_info.used_runqs, online);
+		set_no_used_runqs(online);
 		/* Make sure that we balance soon... */
 		balance_info.forced_check_balance = 1;
 		erts_smp_runq_lock(ERTS_RUNQ_IX(0));
@@ -3667,7 +3730,7 @@ sched_thread_func(void *vesdp)
 #ifdef ERTS_ENABLE_LOCK_CHECK
     {
 	char buf[31];
-	erts_snprintf(&buf[0], 31, "scheduler %bpu", no);
+	erts_snprintf(&buf[0], 31, "scheduler %beu", no);
 	erts_lc_set_thread_name(&buf[0]);
     }
 #endif
@@ -3725,7 +3788,7 @@ sched_thread_func(void *vesdp)
 
     process_main();
     /* No schedulers should *ever* terminate */
-    erl_exit(ERTS_ABORT_EXIT, "Scheduler thread number %bpu terminated\n",
+    erl_exit(ERTS_ABORT_EXIT, "Scheduler thread number %beu terminated\n",
 	     ((ErtsSchedulerData *) vesdp)->no);
     return NULL;
 }
@@ -3774,8 +3837,8 @@ erts_start_schedulers(void)
 	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
 	ASSERT(actual != wanted_no_schedulers);
 	erts_dsprintf(dsbufp,
-		      "Failed to create %bpu scheduler-threads (%s:%d); "
-		      "only %bpu scheduler-thread%s created.\n",
+		      "Failed to create %beu scheduler-threads (%s:%d); "
+		      "only %beu scheduler-thread%s created.\n",
 		      wanted_no_schedulers, erl_errno_id(res), res,
 		      actual, actual == 1 ? " was" : "s were");
 	erts_send_error_to_logger_nogl(dsbufp);
@@ -3889,21 +3952,9 @@ handle_pend_sync_suspend(Process *suspendee,
     }
 }
 
-/*
- * Like erts_pid2proc() but:
- *
- * * At least ERTS_PROC_LOCK_MAIN have to be held on c_p.
- * * At least ERTS_PROC_LOCK_MAIN have to be taken on pid.
- * * It also waits for proc to be in a state != running and garbing.
- * * If ERTS_PROC_LOCK_BUSY is returned, the calling process has to
- *   yield (ERTS_BIF_YIELD[0-3]()). c_p might in this case have been
- *   suspended.
- */
-
-
-Process *
-erts_pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
-			  Eterm pid, ErtsProcLocks pid_locks)
+static Process *
+pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
+		     Eterm pid, ErtsProcLocks pid_locks, int suspend)
 {
     Process *rp;
     int unlock_c_p_status;
@@ -3930,7 +3981,7 @@ erts_pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
 	c_p->suspendee = NIL;
 	ASSERT(c_p->flags & F_P2PNR_RESCHED);
 	c_p->flags &= ~F_P2PNR_RESCHED;
-	if (rp)
+	if (!suspend && rp)
 	    resume_process(rp);
     }
     else {
@@ -3994,6 +4045,8 @@ erts_pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
 	    }
 
 	    /* rp is not running and we got the locks we want... */
+	    if (suspend)
+		suspend_process(rp_rq, rp);
 	}
 	erts_smp_runqs_unlock(cp_rq, rp_rq);
     }
@@ -4006,6 +4059,35 @@ erts_pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
     return rp;
 }
 
+
+/*
+ * Like erts_pid2proc() but:
+ *
+ * * At least ERTS_PROC_LOCK_MAIN have to be held on c_p.
+ * * At least ERTS_PROC_LOCK_MAIN have to be taken on pid.
+ * * It also waits for proc to be in a state != running and garbing.
+ * * If ERTS_PROC_LOCK_BUSY is returned, the calling process has to
+ *   yield (ERTS_BIF_YIELD[0-3]()). c_p might in this case have been
+ *   suspended.
+ */
+Process *
+erts_pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
+			  Eterm pid, ErtsProcLocks pid_locks)
+{
+    return pid2proc_not_running(c_p, c_p_locks, pid, pid_locks, 0);
+}
+
+/*
+ * Like erts_pid2proc_not_running(), but hands over the process
+ * in a suspended state unless (c_p is looked up).
+ */
+Process *
+erts_pid2proc_suspend(Process *c_p, ErtsProcLocks c_p_locks,
+		      Eterm pid, ErtsProcLocks pid_locks)
+{
+    return pid2proc_not_running(c_p, c_p_locks, pid, pid_locks, 1);
+}
+
 /*
  * erts_pid2proc_nropt() is normally the same as
  * erts_pid2proc_not_running(). However it is only
@@ -4119,6 +4201,21 @@ handle_pend_bif_async_suspend(Process *suspendee,
     }
 }
 
+#else
+
+/*
+ * Non-smp version of erts_pid2proc_suspend().
+ */
+Process *
+erts_pid2proc_suspend(Process *c_p, ErtsProcLocks c_p_locks,
+		      Eterm pid, ErtsProcLocks pid_locks)
+{
+    Process *rp = erts_pid2proc(c_p, c_p_locks, pid, pid_locks);
+    if (rp)
+	erts_suspend(rp, pid_locks, NULL);
+    return rp;
+}
+
 #endif /* ERTS_SMP */
 
 /*
@@ -4652,7 +4749,7 @@ internal_add_to_runq(ErtsRunQueue *runq, Process *p)
     if (p->status_flags & ERTS_PROC_SFLG_INRUNQ)
 	return NULL;
     else if (p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
-	ASSERT(p->rcount == 0);
+	ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
 	ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
 	p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ;
 	return NULL;
@@ -4663,7 +4760,7 @@ internal_add_to_runq(ErtsRunQueue *runq, Process *p)
     ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
 #ifndef ERTS_SMP
     /* Never schedule a suspended process (ok in smp case) */
-    ASSERT(p->rcount == 0);
+    ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
     add_runq = runq;
 #else
     ASSERT(!p->bound_runq || p->bound_runq == p->run_queue);
@@ -5099,7 +5196,7 @@ Process *schedule(Process *p, int calls)
 	esdp = erts_get_scheduler_data();
 	rq = erts_get_runq_current(esdp);
 	ASSERT(esdp);
-	fcalls = (int) erts_smp_atomic32_read(&function_calls);
+	fcalls = (int) erts_smp_atomic32_read_acqb(&function_calls);
 	actual_reds = reds = 0;
 	erts_smp_runq_lock(rq);
     } else {
@@ -5250,14 +5347,14 @@ Process *schedule(Process *p, int calls)
 			 | ERTS_RUNQ_FLG_CHK_CPU_BIND
 			 | ERTS_RUNQ_FLG_SUSPENDED)) {
 	    if ((rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
-		|| (erts_smp_atomic32_read(&esdp->ssi->flags)
+		|| (erts_smp_atomic32_read_acqb(&esdp->ssi->flags)
 		    & ERTS_SSI_FLG_SUSPENDED)) {
 		ASSERT(erts_smp_atomic32_read(&esdp->ssi->flags)
 		       & ERTS_SSI_FLG_SUSPENDED);
 		suspend_scheduler(esdp);
 	    }
 	    if ((rq->flags & ERTS_RUNQ_FLG_CHK_CPU_BIND)
-		|| erts_smp_atomic32_read(&esdp->chk_cpu_bind)) {
+		|| erts_smp_atomic32_read_acqb(&esdp->chk_cpu_bind)) {
 		erts_sched_check_cpu_bind(esdp);
 	    }
 	}
@@ -5308,7 +5405,7 @@ Process *schedule(Process *p, int calls)
 	    if (rq->flags & (ERTS_RUNQ_FLG_SHARED_RUNQ
 			     | ERTS_RUNQ_FLG_SUSPENDED)) {
 		if ((rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
-		    || (erts_smp_atomic32_read(&esdp->ssi->flags)
+		    || (erts_smp_atomic32_read_acqb(&esdp->ssi->flags)
 			& ERTS_SSI_FLG_SUSPENDED)) {
 		    ASSERT(erts_smp_atomic32_read(&esdp->ssi->flags)
 			   & ERTS_SSI_FLG_SUSPENDED);
@@ -5352,7 +5449,7 @@ Process *schedule(Process *p, int calls)
 	     * Schedule system-level activities.
 	     */
 
-	    erts_smp_atomic32_set(&function_calls, 0);
+	    erts_smp_atomic32_set_relb(&function_calls, 0);
 	    fcalls = 0;
 
 	    ASSERT(!erts_port_task_have_outstanding_io_tasks());
@@ -5394,7 +5491,7 @@ Process *schedule(Process *p, int calls)
 			if (erts_common_run_queue->waiting)
 			    wake_scheduler(erts_common_run_queue, 0, 1);
 		    }
-		    else if (erts_smp_atomic32_read(&no_empty_run_queues) != 0) {
+		    else if (erts_smp_atomic32_read_acqb(&no_empty_run_queues) != 0) {
 			wake_scheduler_on_empty_runq(rq);
 			rq->wakeup_other = 0;
 		    }
@@ -7605,7 +7702,8 @@ continue_exit_process(Process *p
 static void
 timeout_proc(Process* p)
 {
-    p->i = *((BeamInstr **) (UWord) p->def_arg_reg);
+    BeamInstr** pi = (BeamInstr **) p->def_arg_reg;
+    p->i = *pi;
     p->flags |= F_TIMO;
     p->flags &= ~F_INSLPQUEUE;
 
@@ -7716,7 +7814,7 @@ erts_program_counter_info(int to, void *to_arg, Process *p)
 	     * only cause problems.
 	     */
 	    for (i = 0; i < p->arity; i++)
-		erts_print(to, to_arg, "   %T\n", p->arg_reg[i]);
+		erts_print(to, to_arg, "   %.*T\n", INT_MAX, p->arg_reg[i]);
 	}
     }
 }
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 334ae5573f..296acc7367 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1535,6 +1535,10 @@ erts_get_atom_cache_map(Process *c_p)
 }
 #endif
 
+Process *erts_pid2proc_suspend(Process *,
+			       ErtsProcLocks,
+			       Eterm,
+			       ErtsProcLocks);
 #ifdef ERTS_SMP
 
 Process *erts_pid2proc_not_running(Process *,
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index 68fda01597..5410bcd495 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -194,7 +194,7 @@ dump_element(int to, void *to_arg, Eterm x)
 	} else if (is_pid(x)) {
 	    erts_print(to, to_arg, "P%T", x);
 	} else if (is_port(x)) {
-	    erts_print(to, to_arg, "p<%bpu.%bpu>",
+	    erts_print(to, to_arg, "p<%beu.%beu>",
 		       port_channel_no(x), port_number(x));
 	} else if (is_nil(x)) {
 	    erts_putc(to, to_arg, 'N');
@@ -376,7 +376,7 @@ heap_dump(int to, void *to_arg, Eterm x)
 		    erts_print(to, to_arg, "P%T\n", x);
 		    *ptr = OUR_NIL;
 		} else if (is_external_port_header(hdr)) {
-		    erts_print(to, to_arg, "p<%bpu.%bpu>\n",
+		    erts_print(to, to_arg, "p<%beu.%beu>\n",
 			       port_channel_no(x), port_number(x));
 		    *ptr = OUR_NIL;
 		} else {
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index c0397ca6c3..8833137112 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -1538,8 +1538,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
     Eterm tracee;
 #endif
     Eterm transformed_args[MAX_ARG];
-    DeclareTmpHeap(sub_bin_heap_et,ERL_SUB_BIN_SIZE,p);
-    ErlSubBin *sub_bin_heap = (ErlSubBin *) sub_bin_heap_et;
+    DeclareTypedTmpHeap(ErlSubBin,sub_bin_heap,p);
 
     ASSERT(tracer_pid);
     if (*tracer_pid == am_true) {
@@ -1600,21 +1599,20 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
 	if (is_boxed(arg) && header_is_bin_matchstate(*boxed_val(arg))) {
 	    ErlBinMatchState* ms = (ErlBinMatchState *) boxed_val(arg);
 	    ErlBinMatchBuffer* mb = &ms->mb;
-	    ErlSubBin* sb = sub_bin_heap;
 	    Uint bit_size;
 
 	    ASSERT(sub_bin_heap->thing_word == 0); /* At most one of match context */
 
 	    bit_size = mb->size - mb->offset;
-	    sb->thing_word = HEADER_SUB_BIN;
-	    sb->size = BYTE_OFFSET(bit_size);
-	    sb->bitsize = BIT_OFFSET(bit_size);
-	    sb->offs = BYTE_OFFSET(mb->offset);
-	    sb->bitoffs = BIT_OFFSET(mb->offset);
-	    sb->is_writable = 0;
-	    sb->orig = mb->orig;
-
-	    arg = make_binary(sb);
+	    sub_bin_heap->thing_word = HEADER_SUB_BIN;
+	    sub_bin_heap->size = BYTE_OFFSET(bit_size);
+	    sub_bin_heap->bitsize = BIT_OFFSET(bit_size);
+	    sub_bin_heap->offs = BYTE_OFFSET(mb->offset);
+	    sub_bin_heap->bitoffs = BIT_OFFSET(mb->offset);
+	    sub_bin_heap->is_writable = 0;
+	    sub_bin_heap->orig = mb->orig;
+
+	    arg = make_binary(sub_bin_heap);
 	}
 	transformed_args[i] = arg;
     }
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 545b345a71..158eb361a4 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -902,7 +902,6 @@ static BIF_RETTYPE build_utf8_return(Process *p,Eterm bin,int pos,
 static BIF_RETTYPE characters_to_utf8_trap(BIF_ALIST_3)
 {
     Eterm *real_bin;
-    Sint need;
     byte* bytes;
     Eterm rest_term;
     int left, sleft;
@@ -918,7 +917,6 @@ static BIF_RETTYPE characters_to_utf8_trap(BIF_ALIST_3)
     ASSERT(is_binary(BIF_ARG_1));
     real_bin = binary_val(BIF_ARG_1);
     ASSERT(*real_bin == HEADER_PROC_BIN);
-    need = ((ProcBin *) real_bin)->val->orig_size;
     pos = (int) binary_size(BIF_ARG_1);
     bytes = binary_bytes(BIF_ARG_1);
     sleft = left = allowed_iterations(BIF_P);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 432bdd705b..499bdd77ba 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -183,7 +183,7 @@ struct port {
 				    process to get (line oriented I/O)*/
     Uint32 status;		 /* Status and type flags */
     int control_flags;		 /* Flags for port_control()  */
-    Uint32 snapshot;             /* Next snapshot that port should be part of */
+    erts_aint32_t snapshot;      /* Next snapshot that port should be part of */
     struct reg_proc *reg;
     ErlDrvPDL port_data_lock;
 
@@ -527,11 +527,10 @@ union erl_off_heap_ptr {
 
 /* arrays that get malloced at startup */
 extern Port* erts_port;
-extern erts_smp_atomic_t erts_ports_alive;
 
 extern Uint erts_max_ports;
 extern Uint erts_port_tab_index_mask;
-extern erts_smp_atomic_t erts_ports_snapshot;
+extern erts_smp_atomic32_t erts_ports_snapshot;
 extern erts_smp_atomic_t erts_dead_ports_ptr;
 
 ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt);
@@ -541,12 +540,12 @@ ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt);
 ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt)
 {
     ERTS_SMP_LC_ASSERT(erts_smp_lc_spinlock_is_locked(&prt->state_lck));
-    if (prt->snapshot != erts_smp_atomic_read(&erts_ports_snapshot)) {
+    if (prt->snapshot != erts_smp_atomic32_read_acqb(&erts_ports_snapshot)) {
 	/* Dead ports are added from the end of the snapshot buffer */
 	Eterm* tombstone = (Eterm*) erts_smp_atomic_addtest(&erts_dead_ports_ptr,
 							    -(erts_aint_t)sizeof(Eterm));
 	ASSERT(tombstone+1 != NULL);
-	ASSERT(prt->snapshot == (Uint32) erts_smp_atomic_read(&erts_ports_snapshot) - 1);
+	ASSERT(prt->snapshot == erts_smp_atomic32_read(&erts_ports_snapshot) - 1);
 	*tombstone = prt->id;
     }
     /*else no ongoing snapshot or port was already included or created after snapshot */
@@ -1653,10 +1652,14 @@ struct Sint_buf {
 };	
 char* Sint_to_buf(Sint, struct Sint_buf*);
 
+#define ERTS_IOLIST_OK 0
+#define ERTS_IOLIST_OVERFLOW 1
+#define ERTS_IOLIST_TYPE 2
+
 Eterm buf_to_intlist(Eterm**, char*, int, Eterm); /* most callers pass plain char*'s */
 int io_list_to_buf(Eterm, char*, int);
 int io_list_to_buf2(Eterm, char*, int);
-int io_list_len(Eterm);
+int erts_iolist_size(Eterm, Uint *);
 int is_string(Eterm);
 void erl_at_exit(void (*) (void*), void*);
 Eterm collect_memory(Process *);
@@ -1828,7 +1831,7 @@ erts_alloc_message_heap(Uint size,
 #endif
 
     if (size > (Uint) INT_MAX)
-	erl_exit(ERTS_ABORT_EXIT, "HUGE size (%bpu)\n", size);
+	erl_exit(ERTS_ABORT_EXIT, "HUGE size (%beu)\n", size);
 
     if (
 #if defined(ERTS_SMP)
@@ -1890,6 +1893,8 @@ erts_alloc_message_heap(Uint size,
 #  if defined(DEBUG)
 #    define DeclareTmpHeap(VariableName,Size,Process) \
        Eterm *VariableName = erts_debug_allocate_tmp_heap(Size,Process)
+#    define DeclareTypedTmpHeap(Type,VariableName,Process)		\
+      Type *VariableName = (Type *) erts_debug_allocate_tmp_heap(sizeof(Type)/sizeof(Eterm),Process)
 #    define DeclareTmpHeapNoproc(VariableName,Size) \
        Eterm *VariableName = erts_debug_allocate_tmp_heap(Size,NULL)
 #    define UseTmpHeap(Size,Proc) \
@@ -1911,6 +1916,8 @@ erts_alloc_message_heap(Uint size,
 #  else
 #    define DeclareTmpHeap(VariableName,Size,Process) \
        Eterm *VariableName = (ERTS_PROC_GET_SCHDATA(Process)->tmp_heap)+(ERTS_PROC_GET_SCHDATA(Process)->num_tmp_heap_used)
+#    define DeclareTypedTmpHeap(Type,VariableName,Process)		\
+      Type *VariableName = (Type *) (ERTS_PROC_GET_SCHDATA(Process)->tmp_heap)+(ERTS_PROC_GET_SCHDATA(Process)->num_tmp_heap_used)
 #    define DeclareTmpHeapNoproc(VariableName,Size) \
        Eterm *VariableName = (erts_get_scheduler_data()->tmp_heap)+(erts_get_scheduler_data()->num_tmp_heap_used)
 #    define UseTmpHeap(Size,Proc) \
@@ -1936,6 +1943,8 @@ erts_alloc_message_heap(Uint size,
 #else
 #  define DeclareTmpHeap(VariableName,Size,Process) \
      Eterm VariableName[Size]
+#  define DeclareTypedTmpHeap(Type,VariableName,Process)	\
+     Type VariableName[1]
 #  define DeclareTmpHeapNoproc(VariableName,Size) \
      Eterm VariableName[Size]
 #  define UseTmpHeap(Size,Proc) /* Nothing */
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index f21a96c754..df5f8b22a3 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -56,7 +56,6 @@ static erts_smp_tsd_key_t driver_list_last_error_key;  /* Save last DDLL error o
 							  per thread basis (for BC interfaces) */
 
 Port*      erts_port; /* The port table */
-erts_smp_atomic_t erts_ports_alive;
 erts_smp_atomic_t erts_bytes_out;	/* No bytes sent out of the system */
 erts_smp_atomic_t erts_bytes_in;	/* No bytes gotten into the system */
 
@@ -82,6 +81,9 @@ static void driver_monitor_unlock_pdl(Port *p);
 #define DRV_MONITOR_UNLOCK_PDL(Port) /* nothing */
 #endif
 
+#define ERL_SMALL_IO_BIN_LIMIT (4*ERL_ONHEAP_BIN_LIMIT)
+#define SMALL_WRITE_VEC  16
+
 static ERTS_INLINE ErlIOQueue*
 drvport2ioq(ErlDrvPort drvport)
 {
@@ -190,7 +192,7 @@ typedef struct line_buf_context {
 static erts_smp_spinlock_t get_free_port_lck;
 static Uint last_port_num;
 static Uint port_num_mask;
-erts_smp_atomic_t erts_ports_snapshot; /* Identifies the _next_ snapshot (not the ongoing) */
+erts_smp_atomic32_t erts_ports_snapshot; /* Identifies the _next_ snapshot (not the ongoing) */
 
 
 static ERTS_INLINE void
@@ -421,10 +423,9 @@ setup_port(Port* prt, Eterm pid, erts_driver_t *driver,
     new_name = (char*) erts_alloc(ERTS_ALC_T_PORT_NAME, sys_strlen(name)+1);
     sys_strcpy(new_name, name);
     erts_smp_runq_lock(runq);
-    erts_smp_atomic_inc(&erts_ports_alive);
     erts_smp_port_state_lock(prt);    
     prt->status = ERTS_PORT_SFLG_CONNECTED | xstatus;
-    prt->snapshot = (Uint32) erts_smp_atomic_read(&erts_ports_snapshot);    
+    prt->snapshot = erts_smp_atomic32_read(&erts_ports_snapshot);    
     old_name = prt->name;
     prt->name = new_name;
 #ifdef ERTS_SMP
@@ -954,13 +955,14 @@ do {									\
     int _bitoffs;							\
     int _bitsize;							\
     ERTS_GET_REAL_BIN(obj, _real, _offset, _bitoffs, _bitsize);		\
-    ASSERT(_bitsize == 0);						\
+    if (_bitsize != 0) goto L_type_error;				\
     if (thing_subtag(*binary_val(_real)) == REFC_BINARY_SUBTAG &&	\
 	_bitoffs == 0) {						\
 	b_size += _size;						\
+        if (b_size < _size) goto L_overflow_error;			\
 	in_clist = 0;							\
 	v_size++;							\
-        if (_size >= bin_limit) {					\
+        if (_size >= ERL_SMALL_IO_BIN_LIMIT) {				\
             p_in_clist = 0;						\
             p_v_size++;							\
         } else {							\
@@ -972,6 +974,7 @@ do {									\
         }								\
     } else {								\
 	c_size += _size;						\
+        if (c_size < _size) goto L_overflow_error;			\
 	if (!in_clist) {						\
 	    in_clist = 1;						\
 	    v_size++;							\
@@ -986,29 +989,30 @@ do {									\
 
 
 /* 
-** Size of a io list in bytes
-** return -1 if error
-** returns:            - Total size of io list
-**           vsize     - SysIOVec size needed for a writev
-**           csize     - Number of bytes not in binary (in the common binary)
-**           pvsize    - SysIOVec size needed if packing small binaries
-**           pcsize    - Number of bytes in the common binary if packing
-*/
+ * Returns 0 if successful and a non-zero value otherwise.
+ *
+ * Return values through pointers:
+ *    *vsize      - SysIOVec size needed for a writev
+ *    *csize      - Number of bytes not in binary (in the common binary)
+ *    *pvsize     - SysIOVec size needed if packing small binaries
+ *    *pcsize     - Number of bytes in the common binary if packing
+ *    *total_size - Total size of iolist in bytes
+ */
 
 static int 
-io_list_vec_len(Eterm obj, int* vsize, int* csize, 
-		int bin_limit, /* small binaries limit */
-		int * pvsize, int * pcsize)
+io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize,
+		Uint* pvsize, Uint* pcsize, Uint* total_size)
 {
     DECLARE_ESTACK(s);
     Eterm* objp;
-    int v_size = 0;
-    int c_size = 0;
-    int b_size = 0;
-    int in_clist = 0;
-    int p_v_size = 0;
-    int p_c_size = 0;
-    int p_in_clist = 0;
+    Uint v_size = 0;
+    Uint c_size = 0;
+    Uint b_size = 0;
+    Uint in_clist = 0;
+    Uint p_v_size = 0;
+    Uint p_c_size = 0;
+    Uint p_in_clist = 0;
+    Uint total;
 
     goto L_jump_start;  /* avoid a push */
 
@@ -1022,6 +1026,9 @@ io_list_vec_len(Eterm obj, int* vsize, int* csize,
 
 	    if (is_byte(obj)) {
 		c_size++;
+		if (c_size == 0) {
+		    goto L_overflow_error;
+		}
 		if (!in_clist) {
 		    in_clist = 1;
 		    v_size++;
@@ -1061,32 +1068,31 @@ io_list_vec_len(Eterm obj, int* vsize, int* csize,
 	}
     }
 
+    total = c_size + b_size;
+    if (total < c_size) {
+	goto L_overflow_error;
+    }
+    *total_size = total;
+
     DESTROY_ESTACK(s);
-    if (vsize != NULL)
-	*vsize = v_size;
-    if (csize != NULL)
-	*csize = c_size;
-    if (pvsize != NULL)
-	*pvsize = p_v_size;
-    if (pcsize != NULL)
-	*pcsize = p_c_size;
-    return c_size + b_size;
+    *vsize = v_size;
+    *csize = c_size;
+    *pvsize = p_v_size;
+    *pcsize = p_c_size;
+    return 0;
 
  L_type_error:
+ L_overflow_error:
     DESTROY_ESTACK(s);
-    return -1;
+    return 1;
 }
 
-#define ERL_SMALL_IO_BIN_LIMIT (4*ERL_ONHEAP_BIN_LIMIT)
-#define SMALL_WRITE_VEC  16
-
-
 /* write data to a port */
 int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
 {
     char *buf;
     erts_driver_t *drv = p->drv_ptr;
-    int size;
+    Uint size;
     int fpe_was_unmasked;
     
     ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p));
@@ -1094,10 +1100,10 @@ int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
 
     p->caller = caller_id;
     if (drv->outputv != NULL) {
-	int vsize;
-	int csize;
-	int pvsize;
-	int pcsize;
+	Uint vsize;
+	Uint csize;
+	Uint pvsize;
+	Uint pcsize;
 	int blimit;
 	SysIOVec iv[SMALL_WRITE_VEC];
 	ErlDrvBinary* bv[SMALL_WRITE_VEC];
@@ -1106,9 +1112,8 @@ int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
 	ErlDrvBinary* cbin;
 	ErlIOVec ev;
 
-	if ((size = io_list_vec_len(list, &vsize, &csize, 
-				    ERL_SMALL_IO_BIN_LIMIT,
-				    &pvsize, &pcsize)) < 0) {
+	if (io_list_vec_len(list, &vsize, &csize,
+			    &pvsize, &pcsize, &size)) {
 	    goto bad_value;
 	}
 	/* To pack or not to pack (small binaries) ...? */
@@ -1183,7 +1188,7 @@ int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
 	else {
 	    ASSERT(r == -1); /* Overflow */
 	    erts_free(ERTS_ALC_T_TMP, buf);
-	    if ((size = io_list_len(list)) < 0) {
+	    if (erts_iolist_size(list, &size)) {
 		goto bad_value;
 	    }
 
@@ -1226,7 +1231,6 @@ void init_io(void)
 {
     int i;
     ErlDrvEntry** dp;
-    ErlDrvEntry* drv;
     char maxports[21]; /* enough for any 64-bit integer */
     size_t maxportssize = sizeof(maxports);
     Uint ports_bits = ERTS_PORTS_BITS;
@@ -1275,7 +1279,6 @@ void init_io(void)
 
     erts_smp_atomic_init(&erts_bytes_out, 0);
     erts_smp_atomic_init(&erts_bytes_in, 0);
-    erts_smp_atomic_init(&erts_ports_alive, 0);
 
     for (i = 0; i < erts_max_ports; i++) {
 	erts_port_task_init_sched(&erts_port[i].sched);
@@ -1297,7 +1300,7 @@ void init_io(void)
 	erts_port[i].port_data_lock = NULL;
     }
 
-    erts_smp_atomic_init(&erts_ports_snapshot, (erts_aint_t) 0);
+    erts_smp_atomic32_init(&erts_ports_snapshot, (erts_aint32_t) 0);
     last_port_num = 0;
     erts_smp_spinlock_init(&get_free_port_lck, "get_free_port");
 
@@ -1309,10 +1312,8 @@ void init_io(void)
     init_driver(&fd_driver, &fd_driver_entry, NULL);
     init_driver(&vanilla_driver, &vanilla_driver_entry, NULL);
     init_driver(&spawn_driver, &spawn_driver_entry, NULL);
-    for (dp = driver_tab; *dp != NULL; dp++) {
-	drv = *dp;
+    for (dp = driver_tab; *dp != NULL; dp++)
 	erts_add_driver_entry(*dp, NULL, 1);
-    }
 
     erts_smp_tsd_set(driver_list_lock_status_key, NULL);
     erts_smp_mtx_unlock(&erts_driver_list_lock);
@@ -2150,7 +2151,7 @@ erts_port_control(Process* p, Port* prt, Uint command, Eterm iolist)
     byte* to_port = NULL;	/* Buffer to write to port. */
 				/* Initialization is for shutting up
 				   warning about use before set. */
-    int to_len = 0;		/* Length of buffer. */
+    Uint to_len = 0;		/* Length of buffer. */
     int must_free = 0;		/* True if the buffer should be freed. */
     char port_result[ERL_ONHEAP_BIN_LIMIT];  /* Default buffer for result from port. */
     char* port_resp;		/* Pointer to result buffer. */
@@ -2195,7 +2196,7 @@ erts_port_control(Process* p, Port* prt, Uint command, Eterm iolist)
 	} else {
 	    ASSERT(r == -1);	/* Overflow */
 	    erts_free(ERTS_ALC_T_TMP, (void *) to_port);
-	    if ((to_len = io_list_len(iolist)) < 0) { /* Type error */
+	    if (erts_iolist_size(iolist, &to_len)) { /* Type error */
 		return THE_NON_VALUE;
 	    }
 	    must_free = 1;
@@ -2420,7 +2421,7 @@ void erts_raw_port_command(Port* p, byte* buf, Uint len)
 
     if (len > (Uint) INT_MAX)
 	erl_exit(ERTS_ABORT_EXIT,
-		 "Absurdly large data buffer (%bpu bytes) passed to"
+		 "Absurdly large data buffer (%beu bytes) passed to"
 		 "output callback of %s driver.\n",
 		 len,
 		 p->drv_ptr->name ? p->drv_ptr->name : "unknown");
@@ -3670,7 +3671,7 @@ driver_pdl_inc_refc(ErlDrvPDL pdl)
 {
     ErlDrvSInt refc = pdl_inctest_refc(pdl);
 #ifdef HARDDEBUG
-    erts_fprintf(stderr, "driver_pdl_inc_refc(%p) -> %bpd\r\n",
+    erts_fprintf(stderr, "driver_pdl_inc_refc(%p) -> %bed\r\n",
 		 pdl, refc);
 #endif
     return refc;
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index e861f97e7a..8a5763b4bb 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2010. All Rights Reserved.
+# Copyright Ericsson AB 1997-2011. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -1066,7 +1066,7 @@ is_function f y
 is_function f r
 is_function Fail=f c => jump Fail
 
-func_info M=a F=a A=u | label L => gen_func_info(M, F, A, L)
+func_info M F A => i_func_info u M F A
 
 # ================================================================
 # New bit syntax matching (R11B).
diff --git a/erts/emulator/beam/safe_hash.c b/erts/emulator/beam/safe_hash.c
index 21d6ce9304..4c54e19cdb 100644
--- a/erts/emulator/beam/safe_hash.c
+++ b/erts/emulator/beam/safe_hash.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -99,7 +99,7 @@ static void rehash(SafeHash* h, int grow_limit)
 	erts_free(h->type, (void *) old_tab);
     }
     /*else already done */
-    erts_smp_atomic_set(&h->is_rehashing, 0);
+    erts_smp_atomic_set_relb(&h->is_rehashing, 0);
 }
 
 
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index ff828ae889..e64c43de6e 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -538,8 +538,8 @@ typedef struct preload {
  */
 
 typedef struct _SysDriverOpts {
-    int ifd;			/* Input file descriptor (fd driver). */
-    int ofd;			/* Outputfile descriptor (fd driver). */
+    Uint ifd;			/* Input file descriptor (fd driver). */
+    Uint ofd;			/* Outputfile descriptor (fd driver). */
     int packet_bytes;		/* Number of bytes in packet header. */
     int read_write;		/* Read and write bits. */
     int use_stdio;		/* Use standard I/O: TRUE or FALSE. */
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index 6b4f3b3b36..a17de717bc 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -3021,13 +3021,25 @@ int io_list_to_buf(Eterm obj, char* buf, int len)
     return -1;
 }
 
-int io_list_len(Eterm obj)
+/*
+ * Return 0 if successful, and non-zero if unsuccessful.
+ */
+int erts_iolist_size(Eterm obj, Uint* sizep)
 {
     Eterm* objp;
-    Sint len = 0;
+    Uint size = 0;
     DECLARE_ESTACK(s);
     goto L_again;
 
+#define SAFE_ADD(Var, Val)			\
+    do {					\
+        Uint valvar = (Val);			\
+	Var += valvar;				\
+	if (Var < valvar) {			\
+	    goto L_overflow_error;		\
+	}					\
+    } while (0)
+
     while (!ESTACK_ISEMPTY(s)) {
 	obj = ESTACK_POP(s);
     L_again:
@@ -3037,9 +3049,12 @@ int io_list_len(Eterm obj)
 	    /* Head */
 	    obj = CAR(objp);
 	    if (is_byte(obj)) {
-		len++;
+		size++;
+		if (size == 0) {
+		    goto L_overflow_error;
+		}
 	    } else if (is_binary(obj) && binary_bitsize(obj) == 0) {
-		len += binary_size(obj);
+		SAFE_ADD(size, binary_size(obj));
 	    } else if (is_list(obj)) {
 		ESTACK_PUSH(s, CDR(objp));
 		goto L_iter_list; /* on head */
@@ -3051,23 +3066,29 @@ int io_list_len(Eterm obj)
 	    if (is_list(obj))
 		goto L_iter_list; /* on tail */
 	    else if (is_binary(obj) && binary_bitsize(obj) == 0) {
-		len += binary_size(obj);
+		SAFE_ADD(size, binary_size(obj));
 	    } else if (is_not_nil(obj)) {
 		goto L_type_error;
 	    }
 	} else if (is_binary(obj) && binary_bitsize(obj) == 0) { /* Tail was binary */
-	    len += binary_size(obj);
+	    SAFE_ADD(size, binary_size(obj));
 	} else if (is_not_nil(obj)) {
 	    goto L_type_error;
 	}
     }
+#undef SAFE_ADD
 
     DESTROY_ESTACK(s);
-    return len;
+    *sizep = size;
+    return ERTS_IOLIST_OK;
+
+ L_overflow_error:
+    DESTROY_ESTACK(s);
+    return ERTS_IOLIST_OVERFLOW;
 
  L_type_error:
     DESTROY_ESTACK(s);
-    return -1;
+    return ERTS_IOLIST_TYPE;
 }
 
 /* return 0 if item is not a non-empty flat list of bytes */
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index 4e9b5005c1..f0ff3f54c5 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -410,7 +410,7 @@ struct t_data
 static void *ef_safe_alloc(Uint s)
 {
     void *p = EF_ALLOC(s);
-    if (!p) erl_exit(1, "efile drv: Can't allocate %d bytes of memory\n", s);
+    if (!p) erl_exit(1, "efile drv: Can't allocate %lu bytes of memory\n", (unsigned long)s);
     return p;
 }
 
diff --git a/erts/emulator/drivers/common/gzio.c b/erts/emulator/drivers/common/gzio.c
index 5531a275ea..741cb6ae20 100644
--- a/erts/emulator/drivers/common/gzio.c
+++ b/erts/emulator/drivers/common/gzio.c
@@ -632,6 +632,7 @@ erts_gzseek(gzFile file, int offset, int whence)
     while (s->position < pos) {
 	char buf[512];
 	int n;
+	int save_pos = s->position;
 
 	n = pos - s->position;
 	if (n > sizeof(buf))
@@ -643,6 +644,7 @@ erts_gzseek(gzFile file, int offset, int whence)
 	    memset(buf, '\0', n);
 	    erts_gzwrite(file, buf, n);
 	}
+	if (save_pos == s->position) break;
     }
 
     return s->position;
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index b491242aea..40c4a0df08 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -490,7 +490,6 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
 #define TCP_REQ_RECV           42
 #define TCP_REQ_UNRECV         43
 #define TCP_REQ_SHUTDOWN       44
-#define TCP_REQ_MULTI_OP       45
 /* UDP and SCTP requests */
 #define PACKET_REQ_RECV        60 /* Common for UDP and SCTP         */
 #define SCTP_REQ_LISTEN	       61 /* Different from TCP; not for UDP */
@@ -1763,7 +1762,6 @@ send_async_error(ErlDrvPort port, ErlDrvTermData Port, int Ref,
 			LOAD_INT_CNT + 2*LOAD_TUPLE_CNT];
     int i = 0;
     
-    i = 0;
     i = LOAD_ATOM(spec, i, am_inet_async);
     i = LOAD_PORT(spec, i, Port);
     i = LOAD_INT(spec, i, Ref);
@@ -1950,7 +1948,7 @@ static int http_response_inetdrv(void *arg, int major, int minor,
     tcp_descriptor* desc = (tcp_descriptor*) arg;
     int i = 0;
     ErlDrvTermData spec[27];
-    ErlDrvTermData caller;
+    ErlDrvTermData caller = ERL_DRV_NIL;
     
     if (desc->inet.active == INET_PASSIVE) {
         /* {inet_async,S,Ref,{ok,{http_response,Version,Status,Phrase}}} */
@@ -2043,7 +2041,7 @@ http_request_inetdrv(void* arg, const http_atom_t* meth, const char* meth_ptr,
     tcp_descriptor* desc = (tcp_descriptor*) arg;
     int i = 0;
     ErlDrvTermData spec[43];
-    ErlDrvTermData caller;
+    ErlDrvTermData caller = ERL_DRV_NIL;
     
     if (desc->inet.active == INET_PASSIVE) {
         /* {inet_async, S, Ref, {ok,{http_request,Meth,Uri,Version}}} */
@@ -2094,7 +2092,7 @@ http_header_inetdrv(void* arg, const http_atom_t* name, const char* name_ptr,
     tcp_descriptor* desc = (tcp_descriptor*) arg;
     int i = 0;
     ErlDrvTermData spec[26];
-    ErlDrvTermData caller;
+    ErlDrvTermData caller = ERL_DRV_NIL;
     
     if (desc->inet.active == INET_PASSIVE) {
         /* {inet_async,S,Ref,{ok,{http_header,Bit,Name,IValue,Value}} */
@@ -2223,7 +2221,7 @@ int ssl_tls_inetdrv(void* arg, unsigned type, unsigned major, unsigned minor,
     tcp_descriptor* desc = (tcp_descriptor*) arg;
     int i = 0;
     ErlDrvTermData spec[28];
-    ErlDrvTermData caller;
+    ErlDrvTermData caller = ERL_DRV_NIL;
     ErlDrvBinary* bin;
     int ret;
 
@@ -7982,11 +7980,11 @@ static int tcp_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, int len,
 	timeout = get_int32(buf);
 
 	if (desc->inet.state == TCP_STATE_ACCEPTING) {
-	    unsigned long time_left;
-	    int oid;
-	    ErlDrvTermData ocaller;
-	    int oreq;
-	    unsigned otimeout;
+	    unsigned long time_left = 0;
+	    int oid = 0;
+	    ErlDrvTermData ocaller = ERL_DRV_NIL;
+	    int oreq = 0;
+	    unsigned otimeout = 0;
 	    ErlDrvTermData caller = driver_caller(desc->inet.port);
 	    MultiTimerData *mtd = NULL,*omtd = NULL;
 	    ErlDrvMonitor monitor, omonitor;
@@ -8550,7 +8548,9 @@ static int tcp_deliver(tcp_descriptor* desc, int len)
 	len = 0;
 
 	if (!desc->inet.active) {
-	    driver_cancel_timer(desc->inet.port);
+	    if (!desc->busy_on_send) {
+		driver_cancel_timer(desc->inet.port);
+	    }
 	    sock_select(INETP(desc),(FD_READ|FD_CLOSE),0);
 	    if (desc->i_buf != NULL)
 		tcp_restart_input(desc);
diff --git a/erts/emulator/hipe/hipe_abi.txt b/erts/emulator/hipe/hipe_abi.txt
index aea30d262d..d0ec162342 100644
--- a/erts/emulator/hipe/hipe_abi.txt
+++ b/erts/emulator/hipe/hipe_abi.txt
@@ -2,7 +2,7 @@
  %CopyrightBegin%
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE ABI
 ========
diff --git a/erts/emulator/hipe/hipe_amd64.c b/erts/emulator/hipe/hipe_amd64.c
index ff87492f4d..b5dff06987 100644
--- a/erts/emulator/hipe/hipe_amd64.c
+++ b/erts/emulator/hipe/hipe_amd64.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include <stddef.h>	/* offsetof() */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -334,43 +334,3 @@ void hipe_arch_print_pcb(struct hipe_process_state *p)
     U("narity     ", narity);
 #undef U
 }
-
-/*
- * XXX: The following should really be moved to a generic hipe_bifs_64 file.
- */
-
-#if 0 /* unused */
-static int term_to_Sint64(Eterm term, Sint64 *sp)
-{
-    return term_to_Sint(term, sp);
-}
-
-BIF_RETTYPE hipe_bifs_write_s64_2(BIF_ALIST_2)
-{
-    Sint64 *address;
-    Sint64 value;
-
-    address = term_to_address(BIF_ARG_1);
-    if (!address || !hipe_word64_address_ok(address))
-	BIF_ERROR(BIF_P, BADARG);
-    if (!term_to_Sint64(BIF_ARG_2, &value))
-	BIF_ERROR(BIF_P, BADARG);
-    *address = value;
-    BIF_RET(NIL);
-}
-#endif
-
-BIF_RETTYPE hipe_bifs_write_u64_2(BIF_ALIST_2)
-{
-    Uint64 *address;
-    Uint64 value;
-
-    address = term_to_address(BIF_ARG_1);
-    if (!address || !hipe_word64_address_ok(address))
-	BIF_ERROR(BIF_P, BADARG);
-    if (!term_to_Uint(BIF_ARG_2, &value))
-	BIF_ERROR(BIF_P, BADARG);
-    *address = value;
-    hipe_flush_icache_word(address);
-    BIF_RET(NIL);
-}
diff --git a/erts/emulator/hipe/hipe_amd64.h b/erts/emulator/hipe/hipe_amd64.h
index 532d47c092..bf41d238dd 100644
--- a/erts/emulator/hipe/hipe_amd64.h
+++ b/erts/emulator/hipe/hipe_amd64.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_AMD64_H
 #define HIPE_AMD64_H
 
diff --git a/erts/emulator/hipe/hipe_amd64.tab b/erts/emulator/hipe/hipe_amd64.tab
index 3787bbf23b..e039d74525 100644
--- a/erts/emulator/hipe/hipe_amd64.tab
+++ b/erts/emulator/hipe/hipe_amd64.tab
@@ -1,28 +1,24 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
 # AMD64-specific atoms and bifs
 
 atom amd64
 atom handle_fp_exception
 atom inc_stack_0
 atom sse2_fnegate_mask
-
-# bif hipe_bifs:write_s64/2
-bif hipe_bifs:write_u64/2
diff --git a/erts/emulator/hipe/hipe_amd64_abi.txt b/erts/emulator/hipe/hipe_amd64_abi.txt
index 27beff4ea2..8a34bfa67f 100644
--- a/erts/emulator/hipe/hipe_amd64_abi.txt
+++ b/erts/emulator/hipe/hipe_amd64_abi.txt
@@ -2,7 +2,7 @@
  %CopyrightBegin%
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE AMD64 ABI
 ==============
diff --git a/erts/emulator/hipe/hipe_amd64_asm.m4 b/erts/emulator/hipe/hipe_amd64_asm.m4
index 7f563c35d8..7c81040b8b 100644
--- a/erts/emulator/hipe/hipe_amd64_asm.m4
+++ b/erts/emulator/hipe/hipe_amd64_asm.m4
@@ -2,7 +2,7 @@ changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -17,9 +17,8 @@ changecom(`/*', `*/')dnl
  *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 `#ifndef HIPE_AMD64_ASM_H
 #define HIPE_AMD64_ASM_H'
 
diff --git a/erts/emulator/hipe/hipe_amd64_bifs.m4 b/erts/emulator/hipe/hipe_amd64_bifs.m4
index f7c9604e2b..0ba763cbea 100644
--- a/erts/emulator/hipe/hipe_amd64_bifs.m4
+++ b/erts/emulator/hipe/hipe_amd64_bifs.m4
@@ -2,7 +2,7 @@ changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -17,9 +17,7 @@ changecom(`/*', `*/')dnl
  *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 include(`hipe/hipe_amd64_asm.m4')
 #`include' "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_amd64_gc.h b/erts/emulator/hipe/hipe_amd64_gc.h
index 56650901d6..c5a6fee6fe 100644
--- a/erts/emulator/hipe/hipe_amd64_gc.h
+++ b/erts/emulator/hipe/hipe_amd64_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  */
 #ifndef HIPE_AMD64_GC_H
diff --git a/erts/emulator/hipe/hipe_amd64_glue.S b/erts/emulator/hipe/hipe_amd64_glue.S
index 3376487292..8816906870 100644
--- a/erts/emulator/hipe/hipe_amd64_glue.S
+++ b/erts/emulator/hipe/hipe_amd64_glue.S
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -16,9 +16,7 @@
  *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 #include "hipe_amd64_asm.h"
 #include "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_amd64_glue.h b/erts/emulator/hipe/hipe_amd64_glue.h
index c92eb842cb..36508467fa 100644
--- a/erts/emulator/hipe/hipe_amd64_glue.h
+++ b/erts/emulator/hipe/hipe_amd64_glue.h
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 #ifndef HIPE_AMD64_GLUE_H
 #define HIPE_AMD64_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_amd64_primops.h b/erts/emulator/hipe/hipe_amd64_primops.h
index dcfa8be92a..e3c7111997 100644
--- a/erts/emulator/hipe/hipe_amd64_primops.h
+++ b/erts/emulator/hipe/hipe_amd64_primops.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 PRIMOP_LIST(am_inc_stack_0, &nbif_inc_stack_0)
 PRIMOP_LIST(am_handle_fp_exception, &nbif_handle_fp_exception)
 PRIMOP_LIST(am_sse2_fnegate_mask, &sse2_fnegate_mask)
diff --git a/erts/emulator/hipe/hipe_arch.h b/erts/emulator/hipe/hipe_arch.h
index 7803543ef1..04ed980126 100644
--- a/erts/emulator/hipe/hipe_arch.h
+++ b/erts/emulator/hipe/hipe_arch.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_ARCH_H
 #define HIPE_ARCH_H
 
diff --git a/erts/emulator/hipe/hipe_arm.c b/erts/emulator/hipe/hipe_arm.c
index b70b32947b..d52f429a9b 100644
--- a/erts/emulator/hipe/hipe_arm.c
+++ b/erts/emulator/hipe/hipe_arm.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include <stddef.h>	/* offsetof() */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
diff --git a/erts/emulator/hipe/hipe_arm.h b/erts/emulator/hipe/hipe_arm.h
index 84f58a681f..19f2a986cf 100644
--- a/erts/emulator/hipe/hipe_arm.h
+++ b/erts/emulator/hipe/hipe_arm.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_ARM_H
 #define HIPE_ARM_H
 
diff --git a/erts/emulator/hipe/hipe_arm.tab b/erts/emulator/hipe/hipe_arm.tab
index 81626796a7..49b89d6748 100644
--- a/erts/emulator/hipe/hipe_arm.tab
+++ b/erts/emulator/hipe/hipe_arm.tab
@@ -1,22 +1,22 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2005-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2005-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
+
 # ARM-specific atoms and bifs
 
 atom arm
diff --git a/erts/emulator/hipe/hipe_arm_abi.txt b/erts/emulator/hipe/hipe_arm_abi.txt
index 6868704d62..6778ff6663 100644
--- a/erts/emulator/hipe/hipe_arm_abi.txt
+++ b/erts/emulator/hipe/hipe_arm_abi.txt
@@ -2,7 +2,7 @@
  %CopyrightBegin%
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE ARM ABI
 ================
diff --git a/erts/emulator/hipe/hipe_arm_asm.m4 b/erts/emulator/hipe/hipe_arm_asm.m4
index b9a696ffff..85dc84973d 100644
--- a/erts/emulator/hipe/hipe_arm_asm.m4
+++ b/erts/emulator/hipe/hipe_arm_asm.m4
@@ -1,25 +1,24 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 `#ifndef HIPE_ARM_ASM_H
 #define HIPE_ARM_ASM_H'
 
diff --git a/erts/emulator/hipe/hipe_arm_bifs.m4 b/erts/emulator/hipe/hipe_arm_bifs.m4
index 4d8636e711..3664fb6502 100644
--- a/erts/emulator/hipe/hipe_arm_bifs.m4
+++ b/erts/emulator/hipe/hipe_arm_bifs.m4
@@ -1,25 +1,23 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 include(`hipe/hipe_arm_asm.m4')
 #`include' "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_arm_gc.h b/erts/emulator/hipe/hipe_arm_gc.h
index a2a919e3d7..787c6fef3e 100644
--- a/erts/emulator/hipe/hipe_arm_gc.h
+++ b/erts/emulator/hipe/hipe_arm_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  * ARM version.
  */
diff --git a/erts/emulator/hipe/hipe_arm_glue.S b/erts/emulator/hipe/hipe_arm_glue.S
index 8c1c55b216..2e2b8604a6 100644
--- a/erts/emulator/hipe/hipe_arm_glue.S
+++ b/erts/emulator/hipe/hipe_arm_glue.S
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2005-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include "hipe_arm_asm.h"
 #include "hipe_literals.h"
 #define ASM
diff --git a/erts/emulator/hipe/hipe_arm_glue.h b/erts/emulator/hipe/hipe_arm_glue.h
index e840c3dc0f..165f73320d 100644
--- a/erts/emulator/hipe/hipe_arm_glue.h
+++ b/erts/emulator/hipe/hipe_arm_glue.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_ARM_GLUE_H
 #define HIPE_ARM_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_arm_primops.h b/erts/emulator/hipe/hipe_arm_primops.h
index a28b509eee..2a1a87b862 100644
--- a/erts/emulator/hipe/hipe_arm_primops.h
+++ b/erts/emulator/hipe/hipe_arm_primops.h
@@ -1,21 +1,21 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 PRIMOP_LIST(am_inc_stack_0, &hipe_arm_inc_stack)
diff --git a/erts/emulator/hipe/hipe_bif0.h b/erts/emulator/hipe/hipe_bif0.h
index c5c1c30619..f02e8862dc 100644
--- a/erts/emulator/hipe/hipe_bif0.h
+++ b/erts/emulator/hipe/hipe_bif0.h
@@ -1,22 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_bif0.h
  *
  * Compiler and linker support.
diff --git a/erts/emulator/hipe/hipe_bif0.tab b/erts/emulator/hipe/hipe_bif0.tab
index 46c0a3d67d..b6c6bede23 100644
--- a/erts/emulator/hipe/hipe_bif0.tab
+++ b/erts/emulator/hipe/hipe_bif0.tab
@@ -1,22 +1,22 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2001-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2001-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
+#
 # HiPE level 0 bifs: compiler and linker support
 #
 # bif hipe_bifs:name/arity
diff --git a/erts/emulator/hipe/hipe_bif1.c b/erts/emulator/hipe/hipe_bif1.c
index 2369ad4fa8..87cdfb8c7a 100644
--- a/erts/emulator/hipe/hipe_bif1.c
+++ b/erts/emulator/hipe/hipe_bif1.c
@@ -1,22 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_bif1.c
  *
  * Performance analysis support.
diff --git a/erts/emulator/hipe/hipe_bif1.h b/erts/emulator/hipe/hipe_bif1.h
index c3b607565d..89241fb835 100644
--- a/erts/emulator/hipe/hipe_bif1.h
+++ b/erts/emulator/hipe/hipe_bif1.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_bif1.h
  *
  * Performance analysis support.
diff --git a/erts/emulator/hipe/hipe_bif2.c b/erts/emulator/hipe/hipe_bif2.c
index 6bcd5046e9..2660f74a82 100644
--- a/erts/emulator/hipe/hipe_bif2.c
+++ b/erts/emulator/hipe/hipe_bif2.c
@@ -8,15 +8,15 @@
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_bif2.c
  *
  * Miscellaneous add-ons.
@@ -36,14 +36,25 @@
 #include "hipe_arch.h"
 #include "hipe_stack.h"
 
-BIF_RETTYPE hipe_bifs_show_estack_1(BIF_ALIST_1)
+static void proc_unlock(Process* c_p, Process* rp)
 {
+    ErtsProcLocks locks = ERTS_PROC_LOCKS_ALL;
+    if (rp == c_p) {
+	locks &= ~ERTS_PROC_LOCK_MAIN;
+    }
+    if (rp && locks) {
+	erts_smp_proc_unlock(rp, locks);
+    }
+}
+
+BIF_RETTYPE hipe_bifs_show_estack_1(BIF_ALIST_1)
+{    
     Process *rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
 				BIF_ARG_1, ERTS_PROC_LOCKS_ALL);
     if (!rp)
 	BIF_ERROR(BIF_P, BADARG);
     hipe_print_estack(rp);
-    erts_smp_proc_unlock(rp, ERTS_PROC_LOCKS_ALL);
+    proc_unlock(BIF_P, rp);
     BIF_RET(am_true);
 }
 
@@ -54,7 +65,7 @@ BIF_RETTYPE hipe_bifs_show_heap_1(BIF_ALIST_1)
     if (!rp)
 	BIF_ERROR(BIF_P, BADARG);
     hipe_print_heap(rp);
-    erts_smp_proc_unlock(rp, ERTS_PROC_LOCKS_ALL);
+    proc_unlock(BIF_P, rp);
     BIF_RET(am_true);
 }
 
@@ -65,7 +76,7 @@ BIF_RETTYPE hipe_bifs_show_nstack_1(BIF_ALIST_1)
     if (!rp)
 	BIF_ERROR(BIF_P, BADARG);
     hipe_print_nstack(rp);
-    erts_smp_proc_unlock(rp, ERTS_PROC_LOCKS_ALL);
+    proc_unlock(BIF_P, rp);
     BIF_RET(am_true);
 }
 
@@ -81,7 +92,7 @@ BIF_RETTYPE hipe_bifs_show_pcb_1(BIF_ALIST_1)
     if (!rp)
 	BIF_ERROR(BIF_P, BADARG);
     hipe_print_pcb(rp);
-    erts_smp_proc_unlock(rp, ERTS_PROC_LOCKS_ALL);
+    proc_unlock(BIF_P, rp);
     BIF_RET(am_true);
 }
 
diff --git a/erts/emulator/hipe/hipe_bif64.c b/erts/emulator/hipe/hipe_bif64.c
new file mode 100644
index 0000000000..baaf5af2cd
--- /dev/null
+++ b/erts/emulator/hipe/hipe_bif64.c
@@ -0,0 +1,68 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+/* hipe_bif_64.c
+ *
+ * Compiler and linker support. 64-bit specific.
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "global.h"
+#include "error.h"
+#include "bif.h"
+#include "big.h"	/* term_to_Sint() */
+#include "hipe_arch.h"
+#include "hipe_bif0.h"
+#include "hipe_bif64.h"
+
+#if 0 /* unused */
+static int term_to_Sint64(Eterm term, Sint64 *sp)
+{
+    return term_to_Sint(term, sp);
+}
+
+BIF_RETTYPE hipe_bifs_write_s64_2(BIF_ALIST_2)
+{
+    Sint64 *address;
+    Sint64 value;
+
+    address = term_to_address(BIF_ARG_1);
+    if (!address || !hipe_word64_address_ok(address))
+	BIF_ERROR(BIF_P, BADARG);
+    if (!term_to_Sint64(BIF_ARG_2, &value))
+	BIF_ERROR(BIF_P, BADARG);
+    *address = value;
+    BIF_RET(NIL);
+}
+#endif
+
+BIF_RETTYPE hipe_bifs_write_u64_2(BIF_ALIST_2)
+{
+    Uint64 *address;
+    Uint64 value;
+
+    address = term_to_address(BIF_ARG_1);
+    if (!address || !hipe_word64_address_ok(address))
+	BIF_ERROR(BIF_P, BADARG);
+    if (!term_to_Uint(BIF_ARG_2, &value))
+	BIF_ERROR(BIF_P, BADARG);
+    *address = value;
+    hipe_flush_icache_word(address);
+    BIF_RET(NIL);
+}
diff --git a/erts/emulator/hipe/hipe_bif64.h b/erts/emulator/hipe/hipe_bif64.h
new file mode 100644
index 0000000000..6d494886ec
--- /dev/null
+++ b/erts/emulator/hipe/hipe_bif64.h
@@ -0,0 +1,26 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+/* hipe_bif64.c
+ *
+ * Compiler and linker support. 64-bit specific.
+ */
+#ifndef HIPE_BIF64_H
+#define HIPE_BIF64_H
+
+#endif /* HIPE_BIF64_H */
diff --git a/erts/emulator/hipe/hipe_bif64.tab b/erts/emulator/hipe/hipe_bif64.tab
new file mode 100644
index 0000000000..228318af39
--- /dev/null
+++ b/erts/emulator/hipe/hipe_bif64.tab
@@ -0,0 +1,22 @@
+#
+# %CopyrightBegin%
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+#
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+#
+# %CopyrightEnd%
+#
+# HiPE 64-bit specific bifs
+
+# bif hipe_bifs:write_s64/2
+bif hipe_bifs:write_u64/2
diff --git a/erts/emulator/hipe/hipe_bif_list.m4 b/erts/emulator/hipe/hipe_bif_list.m4
index c92d94ed9d..083788997b 100644
--- a/erts/emulator/hipe/hipe_bif_list.m4
+++ b/erts/emulator/hipe/hipe_bif_list.m4
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  *
  * List all non architecture-specific BIFs and primops, and
  * classify each as belonging to one of the classes below.
diff --git a/erts/emulator/hipe/hipe_debug.c b/erts/emulator/hipe/hipe_debug.c
index 548998b7b7..7ca11f8c6c 100644
--- a/erts/emulator/hipe/hipe_debug.c
+++ b/erts/emulator/hipe/hipe_debug.c
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_debug.c
  *
  * TODO:
@@ -51,7 +51,7 @@ static const char stars[2*sizeof(long)+5] = {
 
 extern Uint beam_apply[];
 
-static void print_beam_pc(Uint *pc)
+static void print_beam_pc(BeamInstr *pc)
 {
     if (pc == hipe_beam_pc_return) {
 	printf("return-to-native");
@@ -60,7 +60,7 @@ static void print_beam_pc(Uint *pc)
     } else if (pc == &beam_apply[1]) {
 	printf("normal-process-exit");
     } else {
-	Eterm *mfa = find_function_from_pc(pc);
+	BeamInstr *mfa = find_function_from_pc(pc);
 	if (mfa)
 	    erts_printf("%T:%T/%bpu + 0x%bpx",
 			mfa[0], mfa[1], mfa[2], pc - &mfa[3]);
@@ -71,7 +71,7 @@ static void print_beam_pc(Uint *pc)
 
 static void catch_slot(Eterm *pos, Eterm val)
 {
-    Uint *pc = catch_pc(val);
+    BeamInstr *pc = catch_pc(val);
     printf(" | 0x%0*lx | 0x%0*lx | CATCH 0x%0*lx (BEAM ",
 	   2*(int)sizeof(long), (unsigned long)pos,
 	   2*(int)sizeof(long), (unsigned long)val,
diff --git a/erts/emulator/hipe/hipe_debug.h b/erts/emulator/hipe/hipe_debug.h
index 3980bc8230..a28597000a 100644
--- a/erts/emulator/hipe/hipe_debug.h
+++ b/erts/emulator/hipe/hipe_debug.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_debug.h
  */
 #ifndef HIPE_DEBUG_H
diff --git a/erts/emulator/hipe/hipe_gbif_list.h b/erts/emulator/hipe/hipe_gbif_list.h
index 659f74b5e5..69dbab7ab9 100644
--- a/erts/emulator/hipe/hipe_gbif_list.h
+++ b/erts/emulator/hipe/hipe_gbif_list.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * GBIF_LIST(FunctionAtom,Arity,CFun)
  * manually maintained for now -- expand when necessary
  */
diff --git a/erts/emulator/hipe/hipe_gc.c b/erts/emulator/hipe/hipe_gc.c
index a8b6c20dd0..0199dea99e 100644
--- a/erts/emulator/hipe/hipe_gc.c
+++ b/erts/emulator/hipe/hipe_gc.c
@@ -16,7 +16,7 @@
  *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * GC support procedures
  */
 #ifdef HAVE_CONFIG_H
diff --git a/erts/emulator/hipe/hipe_gc.h b/erts/emulator/hipe/hipe_gc.h
index 712d0ffa78..0d5614c9cf 100644
--- a/erts/emulator/hipe/hipe_gc.h
+++ b/erts/emulator/hipe/hipe_gc.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_GC_H
 #define HIPE_GC_H
 
diff --git a/erts/emulator/hipe/hipe_mkliterals.c b/erts/emulator/hipe/hipe_mkliterals.c
index 25e21ed79e..bced90785d 100644
--- a/erts/emulator/hipe/hipe_mkliterals.c
+++ b/erts/emulator/hipe/hipe_mkliterals.c
@@ -1,24 +1,24 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -587,9 +587,9 @@ static void print_params(FILE *fp, void (*print_param)(FILE*,const struct rts_pa
 	(*print_param)(fp, &rts_params[i]);
 }
 
-static int do_c(FILE *fp)
+static int do_c(FILE *fp, const char* this_exe)
 {
-    fprintf(fp, "/* File: hipe_literals.h, generated by hipe_mkliterals */\n");
+    fprintf(fp, "/* File: hipe_literals.h, generated by %s */\n", this_exe);
     fprintf(fp, "#ifndef __HIPE_LITERALS_H__\n");
     fprintf(fp, "#define __HIPE_LITERALS_H__\n\n");
     print_literals(fp, c_define_literal);
@@ -603,9 +603,9 @@ static int do_c(FILE *fp)
     return 0;
 }
 
-static int do_e(FILE *fp)
+static int do_e(FILE *fp, const char* this_exe)
 {
-    fprintf(fp, "%%%% File: hipe_literals.hrl, generated by hipe_mkliterals");
+    fprintf(fp, "%%%% File: hipe_literals.hrl, generated by %s", this_exe);
     fprintf(fp, "\n\n");
     print_literals(fp, e_define_literal);
     fprintf(fp, "\n");
@@ -622,9 +622,9 @@ int main(int argc, const char **argv)
     compute_crc();
     if (argc == 2) {
 	if (strcmp(argv[1], "-c") == 0)
-	    return do_c(stdout);
+	    return do_c(stdout, argv[0]);
 	if (strcmp(argv[1], "-e") == 0)
-	    return do_e(stdout);
+	    return do_e(stdout, argv[0]);
     }
     fprintf(stderr, "usage: %s [-c | -e] > output-file\n", argv[0]);
     return 1;
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 53ebcd4008..16f8fb1347 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -1,22 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_mode_switch.c
  */
 #ifdef HAVE_CONFIG_H
diff --git a/erts/emulator/hipe/hipe_mode_switch.h b/erts/emulator/hipe/hipe_mode_switch.h
index e0c6c1b5f5..dbc2386e14 100644
--- a/erts/emulator/hipe/hipe_mode_switch.h
+++ b/erts/emulator/hipe/hipe_mode_switch.h
@@ -1,22 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_mode_switch.h
  */
 #ifndef HIPE_MODE_SWITCH_H
diff --git a/erts/emulator/hipe/hipe_native_bif.c b/erts/emulator/hipe/hipe_native_bif.c
index f8c2502522..8d31348496 100644
--- a/erts/emulator/hipe/hipe_native_bif.c
+++ b/erts/emulator/hipe/hipe_native_bif.c
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_native_bif.c
  */
 #ifdef HAVE_CONFIG_H
diff --git a/erts/emulator/hipe/hipe_native_bif.h b/erts/emulator/hipe/hipe_native_bif.h
index 3b55b64a41..13a02b84a2 100644
--- a/erts/emulator/hipe/hipe_native_bif.h
+++ b/erts/emulator/hipe/hipe_native_bif.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_native_bif.h
  */
  
diff --git a/erts/emulator/hipe/hipe_ops.tab b/erts/emulator/hipe/hipe_ops.tab
index eb6f824d1c..50c3a4ae2f 100644
--- a/erts/emulator/hipe/hipe_ops.tab
+++ b/erts/emulator/hipe/hipe_ops.tab
@@ -1,19 +1,19 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2001-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2001-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
 
diff --git a/erts/emulator/hipe/hipe_perfctr.c b/erts/emulator/hipe/hipe_perfctr.c
index 69bb648854..371b3fb097 100644
--- a/erts/emulator/hipe/hipe_perfctr.c
+++ b/erts/emulator/hipe/hipe_perfctr.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
diff --git a/erts/emulator/hipe/hipe_perfctr.h b/erts/emulator/hipe/hipe_perfctr.h
index 7b20c68cac..8fbf9ecf35 100644
--- a/erts/emulator/hipe/hipe_perfctr.h
+++ b/erts/emulator/hipe/hipe_perfctr.h
@@ -1,23 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
 
 extern int hipe_perfctr_hrvtime_open(void);
 extern void hipe_perfctr_hrvtime_close(void);
diff --git a/erts/emulator/hipe/hipe_perfctr.tab b/erts/emulator/hipe/hipe_perfctr.tab
index 663522f85e..eaecea4651 100644
--- a/erts/emulator/hipe/hipe_perfctr.tab
+++ b/erts/emulator/hipe/hipe_perfctr.tab
@@ -1,22 +1,21 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
 
 bif hipe_bifs:vperfctr_open/0
 bif hipe_bifs:vperfctr_close/0
diff --git a/erts/emulator/hipe/hipe_ppc.c b/erts/emulator/hipe/hipe_ppc.c
index 3a0beedb68..bc25061a16 100644
--- a/erts/emulator/hipe/hipe_ppc.c
+++ b/erts/emulator/hipe/hipe_ppc.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include <stddef.h>	/* offsetof() */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -87,48 +87,6 @@ static struct segment {
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
-#if defined(__powerpc64__)
-static void *new_code_mapping(void)
-{
-    char *map_hint, *map_start;
-
-    /*
-     * Allocate a new 32MB code segment in the low 2GB of the address space.
-     *
-     * This is problematic for several reasons:
-     * - Linux/ppc64 lacks the MAP_32BIT flag that Linux/x86-64 has.
-     * - The address space hint to mmap is only respected if that
-     *   area is available. If it isn't, then mmap falls back to its
-     *   defaults, which (according to testing) results in very high
-     *   (and thus useless for us) addresses being returned.
-     * - Another mapping, presumably the brk, also occupies low addresses.
-     *
-     * As initial implementation, simply start allocating at the 0.5GB
-     * boundary. This leaves plenty of space for the brk before malloc
-     * needs to switch to mmap, while allowing for 1.5GB of code.
-     *
-     * A more robust implementation would be to parse /proc/self/maps,
-     * reserve all available space between (say) 0.5GB and 2GB with
-     * PROT_NONE MAP_NORESERVE mappings, and then allocate by releasing
-     * 32MB segments and re-mapping them properly. This would work on
-     * Linux/ppc64, I have no idea how things should be done on Darwin64.
-     */
-    if (curseg.base)
-	map_hint = (char*)curseg.base + SEGMENT_NRBYTES;
-    else
-	map_hint = (char*)(512*1024*1024); /* 0.5GB */
-    map_start = mmap(map_hint, SEGMENT_NRBYTES,
-		     PROT_EXEC|PROT_READ|PROT_WRITE,
-		     MAP_PRIVATE|MAP_ANONYMOUS,
-		     -1, 0);
-    if (map_start != MAP_FAILED &&
-	(((unsigned long)map_start + (SEGMENT_NRBYTES-1)) & ~0x7FFFFFFFUL)) {
-	fprintf(stderr, "mmap with hint %p returned code memory %p\r\n", map_hint, map_start);
-	abort();
-    }
-    return map_start;
-}
-#else
 static void *new_code_mapping(void)
 {
     return mmap(0, SEGMENT_NRBYTES,
@@ -136,7 +94,6 @@ static void *new_code_mapping(void)
 		MAP_PRIVATE|MAP_ANONYMOUS,
 		-1, 0);
 }
-#endif
 
 static int check_callees(Eterm callees)
 {
@@ -182,20 +139,30 @@ static unsigned int *try_alloc(Uint nrwords, int nrcallees, Eterm callees, unsig
 	unsigned int a = unsigned_val(tuple_val(mfa)[3]);
 	unsigned int *trampoline = hipe_mfa_get_trampoline(m, f, a);
 	if (!in_area(trampoline, base, SEGMENT_NRBYTES)) {
+#if defined(__powerpc64__)
+	    if (nrfreewords < 7)
+		return NULL;
+	    nrfreewords -= 7;
+	    tramp_pos = trampoline = tramp_pos - 7;
+	    trampoline[0] = 0x3D600000; /* addis r11,r0,0 */
+	    trampoline[1] = 0x616B0000; /* ori r11,r11,0 */
+	    trampoline[2] = 0x796B07C6; /* rldicr r11,r11,32,31 */
+	    trampoline[3] = 0x656B0000; /* oris r11,r11,0 */
+	    trampoline[4] = 0x616B0000; /* ori r11,r11,0 */
+	    trampoline[5] = 0x7D6903A6; /* mtctr r11 */
+	    trampoline[6] = 0x4E800420; /* bctr */
+	    hipe_flush_icache_range(trampoline, 7*sizeof(int));
+#else
 	    if (nrfreewords < 4)
 		return NULL;
 	    nrfreewords -= 4;
 	    tramp_pos = trampoline = tramp_pos - 4;
-#if defined(__powerpc64__)
-	    trampoline[0] = 0x3D600000; /* addis r11,0,0 */
-	    trampoline[1] = 0x616B0000; /* ori r11,r11,0 */
-#else
 	    trampoline[0] = 0x39600000; /* addi r11,r0,0 */
 	    trampoline[1] = 0x3D6B0000; /* addis r11,r11,0 */
-#endif
 	    trampoline[2] = 0x7D6903A6; /* mtctr r11 */
 	    trampoline[3] = 0x4E800420; /* bctr */
 	    hipe_flush_icache_range(trampoline, 4*sizeof(int));
+#endif
 	    hipe_mfa_set_trampoline(m, f, a, trampoline);
 	}
 	trampvec[trampnr-1] = trampoline;
@@ -281,21 +248,22 @@ static void patch_imm16(Uint32 *address, unsigned int imm16)
 }
 
 #if defined(__powerpc64__)
+/*
+ * To load a 64-bit immediate value 'val' into Rd (Rd != R0):
+ *
+ * addis Rd, 0, val@highest // (val >> 48) & 0xFFFF
+ * ori Rd, Rd, val@higher   // (val >> 32) & 0xFFFF
+ * rldicr Rd, Rd, 32, 31
+ * oris Rd, Rd, val@h       // (val >> 16) & 0xFFFF
+ * ori Rd, Rd, val@l        // val & 0xFFFF
+ */
 static void patch_li64(Uint32 *address, Uint64 value)
 {
-    patch_imm16(address+0, value >> 48);/* addis r,0,value@highest */
-    patch_imm16(address+1, value >> 32);/* ori r,r,value@higher */
-    /* sldi r,r,32 */
-    patch_imm16(address+3, value >> 16);/* oris r,r,value@h */
-    patch_imm16(address+4, value);	/* ori r,r,value@l */
-}
-
-static int patch_li31(Uint32 *address, Uint32 value)
-{
-    if ((value >> 31) != 0)
-	return -1;
-    patch_imm16(address, value >> 16);	/* addis r,0,value@h */
-    patch_imm16(address+1, value);	/* ori r,r,value@l */
+    patch_imm16(address+0, value >> 48);
+    patch_imm16(address+1, value >> 32);
+    /* rldicr Rd, Rd, 32, 31 */
+    patch_imm16(address+3, value >> 16);
+    patch_imm16(address+4, value);
 }
 
 void hipe_patch_load_fe(Uint *address, Uint value)
@@ -308,11 +276,10 @@ int hipe_patch_insn(void *address, Uint64 value, Eterm type)
     switch (type) {
       case am_closure:
       case am_constant:
-	patch_li64((Uint32*)address, value);
-	return 0;
       case am_atom:
       case am_c_const:
-	return patch_li31((Uint32*)address, value);
+	patch_li64((Uint32*)address, value);
+	return 0;
       default:
 	return -1;
     }
@@ -442,34 +409,33 @@ static void patch_b(Uint32 *address, Sint32 offset, Uint32 AA)
 
 int hipe_patch_call(void *callAddress, void *destAddress, void *trampoline)
 {
-    if ((Uint32)destAddress == ((Uint32)destAddress & 0x01FFFFFC)) {
+    if ((UWord)destAddress == ((UWord)destAddress & 0x01FFFFFC)) {
 	/* The destination is in the [0,32MB[ range.
 	   We can reach it with a ba/bla instruction.
 	   This is the typical case for BIFs and primops.
 	   It's also common for trap-to-BEAM stubs (on ppc32). */
-	patch_b((Uint32*)callAddress, (Uint32)destAddress >> 2, 2);
+	patch_b((Uint32*)callAddress, (Sint32)destAddress >> 2, 2);
     } else {
-	Sint32 destOffset = ((Sint32)destAddress - (Sint32)callAddress) >> 2;
+	SWord destOffset = ((SWord)destAddress - (SWord)callAddress) >> 2;
 	if (destOffset >= -0x800000 && destOffset <= 0x7FFFFF) {
 	    /* The destination is within a [-32MB,+32MB[ range from us.
 	       We can reach it with a b/bl instruction.
 	       This is typical for nearby Erlang code. */
-	    patch_b((Uint32*)callAddress, destOffset, 0);
+	    patch_b((Uint32*)callAddress, (Sint32)destOffset, 0);
 	} else {
 	    /* The destination is too distant for b/bl/ba/bla.
 	       Must do a b/bl to the trampoline. */
-	    Sint32 trampOffset = ((Sint32)trampoline - (Sint32)callAddress) >> 2;
+	    SWord trampOffset = ((SWord)trampoline - (SWord)callAddress) >> 2;
 	    if (trampOffset >= -0x800000 && trampOffset <= 0x7FFFFF) {
 		/* Update the trampoline's address computation.
 		   (May be redundant, but we can't tell.) */
 #if defined(__powerpc64__)
-		/* This relies on the fact that we allocate code below 2GB. */
-		patch_li31((Uint32*)trampoline, (Uint32)destAddress);
+		patch_li64((Uint32*)trampoline, (Uint64)destAddress);
 #else
 		patch_li((Uint32*)trampoline, (Uint32)destAddress);
 #endif
 		/* Update this call site. */
-		patch_b((Uint32*)callAddress, trampOffset, 0);
+		patch_b((Uint32*)callAddress, (Sint32)trampOffset, 0);
 	    } else
 		return -1;
 	}
diff --git a/erts/emulator/hipe/hipe_ppc.h b/erts/emulator/hipe/hipe_ppc.h
index e30ce30ed2..66000c1846 100644
--- a/erts/emulator/hipe/hipe_ppc.h
+++ b/erts/emulator/hipe/hipe_ppc.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_PPC_H
 #define HIPE_PPC_H
 
@@ -44,12 +44,20 @@ static __inline__ int hipe_word32_address_ok(void *address)
     return ((unsigned long)address & 0x3) == 0;
 }
 
+#if defined(__powerpc64__)
+/* for hipe_bifs_{read,write}_{s,u}64 */
+static __inline__ int hipe_word64_address_ok(void *address)
+{
+    return ((unsigned long)address & 0x7) == 0;
+}
+#endif
+
 /* Native stack growth direction. */
 #define HIPE_NSTACK_GROWS_DOWN
 
 #if defined(__powerpc64__)
 #define hipe_arch_name	am_ppc64
-#define AEXTERN(RET,NAME,PROTO)	extern const int NAME
+#define AEXTERN(RET,NAME,PROTO)	extern const int NAME[]
 AEXTERN(void,hipe_ppc_inc_stack,(void));
 #else
 #define hipe_arch_name	am_powerpc
diff --git a/erts/emulator/hipe/hipe_ppc.tab b/erts/emulator/hipe/hipe_ppc.tab
index a32dd820e7..38b7f46d3a 100644
--- a/erts/emulator/hipe/hipe_ppc.tab
+++ b/erts/emulator/hipe/hipe_ppc.tab
@@ -1,22 +1,22 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
+
 # PowerPC-specific atoms
 
 atom fconv_constant
diff --git a/erts/emulator/hipe/hipe_ppc64.tab b/erts/emulator/hipe/hipe_ppc64.tab
index 513182721c..0a390a3bb8 100644
--- a/erts/emulator/hipe/hipe_ppc64.tab
+++ b/erts/emulator/hipe/hipe_ppc64.tab
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 # 
-# Copyright Ericsson AB 2005-2009. All Rights Reserved.
+# Copyright Ericsson AB 2005-2011. All Rights Reserved.
 # 
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -16,7 +16,7 @@
 # 
 # %CopyrightEnd%
 #
-# $Id$
+
 # PPC64-specific atoms
 
 atom inc_stack_0
diff --git a/erts/emulator/hipe/hipe_ppc_abi.txt b/erts/emulator/hipe/hipe_ppc_abi.txt
index 4bf41e02b2..be0ef98b0d 100644
--- a/erts/emulator/hipe/hipe_ppc_abi.txt
+++ b/erts/emulator/hipe/hipe_ppc_abi.txt
@@ -2,7 +2,7 @@
  %CopyrightBegin%
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE PowerPC ABI
 ================
diff --git a/erts/emulator/hipe/hipe_ppc_asm.m4 b/erts/emulator/hipe/hipe_ppc_asm.m4
index a0f8b78679..0eb5c441e6 100644
--- a/erts/emulator/hipe/hipe_ppc_asm.m4
+++ b/erts/emulator/hipe/hipe_ppc_asm.m4
@@ -1,25 +1,24 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 `#ifndef HIPE_PPC_ASM_H
 #define HIPE_PPC_ASM_H'
 
@@ -63,15 +62,31 @@ ifelse(OPSYS,darwin,``
 #define SEMI		@
 #define SET_SIZE(NAME)	/*empty*/
 #define TYPE_FUNCTION(NAME)	/*empty*/
+#define OPD(NAME)	/*empty*/
 '',``
 /* Not Darwin */''
 `ifelse(ARCH,ppc64,``
 /* 64-bit */
+/*
+ * The 64-bit PowerPC ABI requires us to setup Official Procedure Descriptors
+ * for functions called from C. These are exported as "func", while the entry
+ * point should is exported as ".func". A function pointer in C points to the
+ * function descriptor in the opd rather than to the function entry point.
+ */
 #define JOIN(X,Y)	X##Y
 #define CSYM(NAME)	JOIN(.,NAME)
+#define OPD(NAME)       			\
+	.pushsection .opd, "aw";		\
+	.align 3;				\
+	.global NAME;				\
+NAME:						\
+	.quad CSYM(NAME), .TOC.@tocbase, 0;	\
+	.type NAME, @function;			\
+	.popsection
 '',``
 /* 32-bit */
 #define CSYM(NAME)	NAME
+#define OPD(NAME)	/*empty*/
 '')'
 ``#define ASYM(NAME)	NAME
 #define GLOBAL(NAME)	.global NAME
diff --git a/erts/emulator/hipe/hipe_ppc_bifs.m4 b/erts/emulator/hipe/hipe_ppc_bifs.m4
index 3849d9113a..203fefe1a1 100644
--- a/erts/emulator/hipe/hipe_ppc_bifs.m4
+++ b/erts/emulator/hipe/hipe_ppc_bifs.m4
@@ -1,25 +1,23 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 include(`hipe/hipe_ppc_asm.m4')
 #`include' "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_ppc_gc.h b/erts/emulator/hipe/hipe_ppc_gc.h
index 796ebeb20a..823ba0ad06 100644
--- a/erts/emulator/hipe/hipe_ppc_gc.h
+++ b/erts/emulator/hipe/hipe_ppc_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  * PowerPC version.
  */
diff --git a/erts/emulator/hipe/hipe_ppc_glue.S b/erts/emulator/hipe/hipe_ppc_glue.S
index c766099102..6f0217c738 100644
--- a/erts/emulator/hipe/hipe_ppc_glue.S
+++ b/erts/emulator/hipe/hipe_ppc_glue.S
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+ *
  * Copyright Ericsson AB 2004-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include "hipe_ppc_asm.h"
 #include "hipe_literals.h"
 #define ASM
@@ -198,6 +198,7 @@
  * int hipe_ppc_call_to_native(Process *p);
  * Emulated code recursively calls native code.
  */
+	OPD(hipe_ppc_call_to_native)
 	GLOBAL(CSYM(hipe_ppc_call_to_native))
 CSYM(hipe_ppc_call_to_native):
 	/* save C context */
@@ -229,6 +230,7 @@ ASYM(nbif_return):
  * int hipe_ppc_return_to_native(Process *p);
  * Emulated code returns to its native code caller.
  */
+	OPD(hipe_ppc_return_to_native)
 	GLOBAL(CSYM(hipe_ppc_return_to_native))
 CSYM(hipe_ppc_return_to_native):
 	/* save C context */
@@ -252,6 +254,7 @@ CSYM(hipe_ppc_return_to_native):
  * int hipe_ppc_tailcall_to_native(Process *p);
  * Emulated code tailcalls native code.
  */
+	OPD(hipe_ppc_tailcall_to_native)
 	GLOBAL(CSYM(hipe_ppc_tailcall_to_native))
 CSYM(hipe_ppc_tailcall_to_native):
 	/* save C context */
@@ -274,6 +277,7 @@ CSYM(hipe_ppc_tailcall_to_native):
  * int hipe_ppc_throw_to_native(Process *p);
  * Emulated code throws an exception to its native code caller.
  */
+	OPD(hipe_ppc_throw_to_native)
 	GLOBAL(CSYM(hipe_ppc_throw_to_native))
 CSYM(hipe_ppc_throw_to_native):
 	/* save C context */
@@ -455,6 +459,10 @@ ASYM(nbif_fail):
 	li	r3, HIPE_MODE_SWITCH_RES_THROW
 	b	.flush_exit	/* no need to save RA */
 
+	OPD(nbif_0_gc_after_bif)
+	OPD(nbif_1_gc_after_bif)
+	OPD(nbif_2_gc_after_bif)
+	OPD(nbif_3_gc_after_bif)
 	GLOBAL(CSYM(nbif_0_gc_after_bif))
 	GLOBAL(CSYM(nbif_1_gc_after_bif))
 	GLOBAL(CSYM(nbif_2_gc_after_bif))
@@ -493,18 +501,22 @@ CSYM(nbif_3_gc_after_bif):
  * The heap pointer was just read from P.
  * TEMP_LR contains a copy of LR
  */
+	OPD(nbif_0_simple_exception)
 	GLOBAL(CSYM(nbif_0_simple_exception))
 CSYM(nbif_0_simple_exception):
 	li	r4, 0
 	b	.nbif_simple_exception
+	OPD(nbif_1_simple_exception)
 	GLOBAL(CSYM(nbif_1_simple_exception))
 CSYM(nbif_1_simple_exception):
 	li	r4, 1
 	b	.nbif_simple_exception
+	OPD(nbif_2_simple_exception)
 	GLOBAL(CSYM(nbif_2_simple_exception))
 CSYM(nbif_2_simple_exception):
 	li	r4, 2
 	b	.nbif_simple_exception
+	OPD(nbif_3_simple_exception)
 	GLOBAL(CSYM(nbif_3_simple_exception))
 CSYM(nbif_3_simple_exception):
 	li	r4, 3
diff --git a/erts/emulator/hipe/hipe_ppc_glue.h b/erts/emulator/hipe/hipe_ppc_glue.h
index dcf5ec7644..f9c4460e60 100644
--- a/erts/emulator/hipe/hipe_ppc_glue.h
+++ b/erts/emulator/hipe/hipe_ppc_glue.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_PPC_GLUE_H
 #define HIPE_PPC_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_ppc_primops.h b/erts/emulator/hipe/hipe_ppc_primops.h
index 67205fe1d1..7dba0afc88 100644
--- a/erts/emulator/hipe/hipe_ppc_primops.h
+++ b/erts/emulator/hipe/hipe_ppc_primops.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #if !defined(__powerpc64__)
 PRIMOP_LIST(am_fconv_constant, &fconv_constant)
 #endif
diff --git a/erts/emulator/hipe/hipe_primops.h b/erts/emulator/hipe/hipe_primops.h
index cc2fc425d5..94113ffcd8 100644
--- a/erts/emulator/hipe/hipe_primops.h
+++ b/erts/emulator/hipe/hipe_primops.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_PRIMOPS_H
 #define HIPE_PRIMOPS_H
 
diff --git a/erts/emulator/hipe/hipe_process.h b/erts/emulator/hipe/hipe_process.h
index 5528e68826..5effacb398 100644
--- a/erts/emulator/hipe/hipe_process.h
+++ b/erts/emulator/hipe/hipe_process.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * HiPE-specific process fields
  */
 #ifndef HIPE_PROCESS_H
diff --git a/erts/emulator/hipe/hipe_risc_gc.h b/erts/emulator/hipe/hipe_risc_gc.h
index 4a9a7878f0..947eb5956b 100644
--- a/erts/emulator/hipe/hipe_risc_gc.h
+++ b/erts/emulator/hipe/hipe_risc_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  * Generic RISC version.
  */
diff --git a/erts/emulator/hipe/hipe_risc_glue.h b/erts/emulator/hipe/hipe_risc_glue.h
index 3b2d6498d3..e74023e3e9 100644
--- a/erts/emulator/hipe/hipe_risc_glue.h
+++ b/erts/emulator/hipe/hipe_risc_glue.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_RISC_GLUE_H
 #define HIPE_RISC_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_risc_stack.c b/erts/emulator/hipe/hipe_risc_stack.c
index 976ca0b85d..1183856c7e 100644
--- a/erts/emulator/hipe/hipe_risc_stack.c
+++ b/erts/emulator/hipe/hipe_risc_stack.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
diff --git a/erts/emulator/hipe/hipe_signal.h b/erts/emulator/hipe/hipe_signal.h
index 3c3c844d52..4eacf52b5d 100644
--- a/erts/emulator/hipe/hipe_signal.h
+++ b/erts/emulator/hipe/hipe_signal.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2002-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2002-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_signal.h
  *
  * Architecture-specific initialisation of Unix signals.
diff --git a/erts/emulator/hipe/hipe_sparc.c b/erts/emulator/hipe/hipe_sparc.c
index 661b42130a..49d4da7bab 100644
--- a/erts/emulator/hipe/hipe_sparc.c
+++ b/erts/emulator/hipe/hipe_sparc.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include <stddef.h>	/* offsetof() */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
diff --git a/erts/emulator/hipe/hipe_sparc.h b/erts/emulator/hipe/hipe_sparc.h
index 53cb18ee45..1134b86004 100644
--- a/erts/emulator/hipe/hipe_sparc.h
+++ b/erts/emulator/hipe/hipe_sparc.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_SPARC_H
 #define HIPE_SPARC_H
 
diff --git a/erts/emulator/hipe/hipe_sparc.tab b/erts/emulator/hipe/hipe_sparc.tab
index f192e1f81c..c620c73c67 100644
--- a/erts/emulator/hipe/hipe_sparc.tab
+++ b/erts/emulator/hipe/hipe_sparc.tab
@@ -1,22 +1,22 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
+
 # SPARC-specific atoms
 
 atom inc_stack_0
diff --git a/erts/emulator/hipe/hipe_sparc_abi.txt b/erts/emulator/hipe/hipe_sparc_abi.txt
index d016a96c1c..cb5cda310b 100644
--- a/erts/emulator/hipe/hipe_sparc_abi.txt
+++ b/erts/emulator/hipe/hipe_sparc_abi.txt
@@ -2,7 +2,7 @@
  %CopyrightBegin%
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE SPARC ABI
 ==============
diff --git a/erts/emulator/hipe/hipe_sparc_asm.m4 b/erts/emulator/hipe/hipe_sparc_asm.m4
index 7a4403ac09..227d10ed80 100644
--- a/erts/emulator/hipe/hipe_sparc_asm.m4
+++ b/erts/emulator/hipe/hipe_sparc_asm.m4
@@ -1,25 +1,24 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2007-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2007-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 `#ifndef HIPE_SPARC_ASM_H
 #define HIPE_SPARC_ASM_H'
 
diff --git a/erts/emulator/hipe/hipe_sparc_bifs.m4 b/erts/emulator/hipe/hipe_sparc_bifs.m4
index f3753b3847..03db7f3413 100644
--- a/erts/emulator/hipe/hipe_sparc_bifs.m4
+++ b/erts/emulator/hipe/hipe_sparc_bifs.m4
@@ -1,25 +1,23 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 include(`hipe/hipe_sparc_asm.m4')
 #`include' "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_sparc_gc.h b/erts/emulator/hipe/hipe_sparc_gc.h
index 9035f5baee..b870ddd59e 100644
--- a/erts/emulator/hipe/hipe_sparc_gc.h
+++ b/erts/emulator/hipe/hipe_sparc_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  * SPARC version.
  */
diff --git a/erts/emulator/hipe/hipe_sparc_glue.S b/erts/emulator/hipe/hipe_sparc_glue.S
index aa07137116..44bdf1bc7e 100644
--- a/erts/emulator/hipe/hipe_sparc_glue.S
+++ b/erts/emulator/hipe/hipe_sparc_glue.S
@@ -1,23 +1,24 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include "hipe_sparc_asm.h"
 #include "hipe_literals.h"
 #define ASM
diff --git a/erts/emulator/hipe/hipe_sparc_glue.h b/erts/emulator/hipe/hipe_sparc_glue.h
index 3f881d2140..1404c0d4c0 100644
--- a/erts/emulator/hipe/hipe_sparc_glue.h
+++ b/erts/emulator/hipe/hipe_sparc_glue.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_SPARC_GLUE_H
 #define HIPE_SPARC_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_sparc_primops.h b/erts/emulator/hipe/hipe_sparc_primops.h
index 1fbb261c67..413371e5f0 100644
--- a/erts/emulator/hipe/hipe_sparc_primops.h
+++ b/erts/emulator/hipe/hipe_sparc_primops.h
@@ -1,21 +1,21 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 PRIMOP_LIST(am_inc_stack_0, &hipe_sparc_inc_stack)
diff --git a/erts/emulator/hipe/hipe_stack.c b/erts/emulator/hipe/hipe_stack.c
index 82f7f022b6..da462a64e1 100644
--- a/erts/emulator/hipe/hipe_stack.c
+++ b/erts/emulator/hipe/hipe_stack.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
diff --git a/erts/emulator/hipe/hipe_stack.h b/erts/emulator/hipe/hipe_stack.h
index 354ac81b4c..4c14b4a519 100644
--- a/erts/emulator/hipe/hipe_stack.h
+++ b/erts/emulator/hipe/hipe_stack.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_STACK_H
 #define HIPE_STACK_H
 
diff --git a/erts/emulator/hipe/hipe_x86.c b/erts/emulator/hipe/hipe_x86.c
index f79a2d53f4..24d232c968 100644
--- a/erts/emulator/hipe/hipe_x86.c
+++ b/erts/emulator/hipe/hipe_x86.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #include <stddef.h>	/* offsetof() */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
diff --git a/erts/emulator/hipe/hipe_x86.h b/erts/emulator/hipe/hipe_x86.h
index 94ca39fc4f..f0f3c158af 100644
--- a/erts/emulator/hipe/hipe_x86.h
+++ b/erts/emulator/hipe/hipe_x86.h
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2003-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2003-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifndef HIPE_X86_H
 #define HIPE_X86_H
 
diff --git a/erts/emulator/hipe/hipe_x86.tab b/erts/emulator/hipe/hipe_x86.tab
index a38fe49156..fb33d0a6b9 100644
--- a/erts/emulator/hipe/hipe_x86.tab
+++ b/erts/emulator/hipe/hipe_x86.tab
@@ -1,22 +1,22 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2004-2011. All Rights Reserved.
+#
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
 # compliance with the License. You should have received a copy of the
 # Erlang Public License along with this software. If not, it can be
 # retrieved online at http://www.erlang.org/.
-# 
+#
 # Software distributed under the License is distributed on an "AS IS"
 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 # the License for the specific language governing rights and limitations
 # under the License.
-# 
+#
 # %CopyrightEnd%
 #
-# $Id$
+
 # x86-specific atoms
 
 atom handle_fp_exception
diff --git a/erts/emulator/hipe/hipe_x86_abi.txt b/erts/emulator/hipe/hipe_x86_abi.txt
index 62a704eef3..aa04a12611 100644
--- a/erts/emulator/hipe/hipe_x86_abi.txt
+++ b/erts/emulator/hipe/hipe_x86_abi.txt
@@ -1,7 +1,7 @@
 
  %CopyrightBegin%
  
- Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ Copyright Ericsson AB 2001-2011. All Rights Reserved.
  
  The contents of this file are subject to the Erlang Public License,
  Version 1.1, (the "License"); you may not use this file except in
@@ -16,7 +16,7 @@
  
  %CopyrightEnd%
 
-$Id$
+
 
 HiPE x86 ABI
 ============
diff --git a/erts/emulator/hipe/hipe_x86_asm.m4 b/erts/emulator/hipe/hipe_x86_asm.m4
index 4c1d612ccd..020ccf8d4b 100644
--- a/erts/emulator/hipe/hipe_x86_asm.m4
+++ b/erts/emulator/hipe/hipe_x86_asm.m4
@@ -1,25 +1,24 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2002-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2002-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 `#ifndef HIPE_X86_ASM_H
 #define HIPE_X86_ASM_H'
 
diff --git a/erts/emulator/hipe/hipe_x86_bifs.m4 b/erts/emulator/hipe/hipe_x86_bifs.m4
index 80be74f7b2..1bb6488b00 100644
--- a/erts/emulator/hipe/hipe_x86_bifs.m4
+++ b/erts/emulator/hipe/hipe_x86_bifs.m4
@@ -1,25 +1,23 @@
 changecom(`/*', `*/')dnl
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 include(`hipe/hipe_x86_asm.m4')
 #`include' "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_x86_gc.h b/erts/emulator/hipe/hipe_x86_gc.h
index 4f17f767df..e4607ad27d 100644
--- a/erts/emulator/hipe/hipe_x86_gc.h
+++ b/erts/emulator/hipe/hipe_x86_gc.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * Stack walking helpers for native stack GC procedures.
  */
 #ifndef HIPE_X86_GC_H
diff --git a/erts/emulator/hipe/hipe_x86_glue.S b/erts/emulator/hipe/hipe_x86_glue.S
index af2d0cb970..88b86f4de7 100644
--- a/erts/emulator/hipe/hipe_x86_glue.S
+++ b/erts/emulator/hipe/hipe_x86_glue.S
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
 
 #include "hipe_x86_asm.h"
 #include "hipe_literals.h"
diff --git a/erts/emulator/hipe/hipe_x86_glue.h b/erts/emulator/hipe/hipe_x86_glue.h
index 4c9c92c52f..a7b0f164be 100644
--- a/erts/emulator/hipe/hipe_x86_glue.h
+++ b/erts/emulator/hipe/hipe_x86_glue.h
@@ -1,24 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/*
- * $Id$
- */
+
+
 #ifndef HIPE_X86_GLUE_H
 #define HIPE_X86_GLUE_H
 
diff --git a/erts/emulator/hipe/hipe_x86_primops.h b/erts/emulator/hipe/hipe_x86_primops.h
index 757da484ad..96d2336bc5 100644
--- a/erts/emulator/hipe/hipe_x86_primops.h
+++ b/erts/emulator/hipe/hipe_x86_primops.h
@@ -1,22 +1,22 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 PRIMOP_LIST(am_inc_stack_0, &nbif_inc_stack_0)
 PRIMOP_LIST(am_handle_fp_exception, &nbif_handle_fp_exception)
diff --git a/erts/emulator/hipe/hipe_x86_signal.c b/erts/emulator/hipe/hipe_x86_signal.c
index e515f1cd60..64c0e0da3e 100644
--- a/erts/emulator/hipe/hipe_x86_signal.c
+++ b/erts/emulator/hipe/hipe_x86_signal.c
@@ -1,22 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
+
+ *
  * Copyright Ericsson AB 2001-2011. All Rights Reserved.
- * 
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
+/*
  * hipe_x86_signal.c
  *
  * Erlang code compiled to x86 native code uses the x86 %esp as its
diff --git a/erts/emulator/hipe/hipe_x86_stack.c b/erts/emulator/hipe/hipe_x86_stack.c
index b459593883..9ad3fa9d31 100644
--- a/erts/emulator/hipe/hipe_x86_stack.c
+++ b/erts/emulator/hipe/hipe_x86_stack.c
@@ -1,23 +1,23 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd%
  */
-/* $Id$
- */
+
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index 218bd79584..cd4de21d65 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2006-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -1137,6 +1137,11 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
 
  restart:
 
+#ifdef ERTS_BREAK_REQUESTED
+    if (ERTS_BREAK_REQUESTED)
+	erts_do_break_handling();
+#endif
+
     /* Figure out timeout value */
     if (do_wait) {
 	erts_time_remaining(&wait_time);
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c
index ceb290b644..eaef6680dd 100644
--- a/erts/emulator/sys/common/erl_mseg.c
+++ b/erts/emulator/sys/common/erl_mseg.c
@@ -134,7 +134,16 @@ static int mmap_fd;
 #define CAN_PARTLY_DESTROY 0
 #endif
 
-static const ErtsMsegOpt_t default_opt = ERTS_MSEG_DEFAULT_OPT_INITIALIZER;
+const ErtsMsegOpt_t erts_mseg_default_opt = {
+    1,			/* Use cache		     */
+    1,			/* Preserv data		     */
+    0,			/* Absolute shrink threshold */
+    0			/* Relative shrink threshold */
+#if HALFWORD_HEAP
+    ,0                  /* need low memory */
+#endif
+};
+
 
 typedef struct cache_desc_t_ {
     void *seg;
@@ -605,18 +614,10 @@ mseg_clear_cache(MemKind* mk)
     INC_CC(clear_cache);
 }
 
-static ERTS_INLINE MemKind* type2mk(ErtsAlcType_t atype)
+static ERTS_INLINE MemKind* memkind(const ErtsMsegOpt_t *opt)
 {
 #if HALFWORD_HEAP
-    switch (atype) {
-    case ERTS_ALC_A_ETS:
-    case ERTS_ALC_A_BINARY:
-    case ERTS_ALC_A_FIXED_SIZE:
-    case ERTS_ALC_A_DRIVER:
-	return &hi_mem;
-    default:
-	return &low_mem;
-    }
+    return opt->low_mem ? &low_mem : &hi_mem;
 #else
     return &the_mem;
 #endif
@@ -628,7 +629,7 @@ mseg_alloc(ErtsAlcType_t atype, Uint *size_p, const ErtsMsegOpt_t *opt)
     Uint max, min, diff_size, size;
     cache_desc_t *cd, *cand_cd;
     void *seg;
-    MemKind* mk = type2mk(atype);
+    MemKind* mk = memkind(opt);
 
     INC_CC(alloc);
 
@@ -742,7 +743,7 @@ static void
 mseg_dealloc(ErtsAlcType_t atype, void *seg, Uint size,
 	     const ErtsMsegOpt_t *opt)
 {
-    MemKind* mk = type2mk(atype);
+    MemKind* mk = memkind(opt);
     cache_desc_t *cd;
 
     ERTS_MSEG_DEALLOC_STAT(mk,size);
@@ -800,7 +801,7 @@ static void *
 mseg_realloc(ErtsAlcType_t atype, void *seg, Uint old_size, Uint *new_size_p,
 	     const ErtsMsegOpt_t *opt)
 {
-    MemKind* mk = type2mk(atype);
+    MemKind* mk = memkind(opt);
     void *new_seg;
     Uint new_size;
 
@@ -1092,10 +1093,10 @@ info_options(char *prefix,
     if (print_to_p) {
 	int to = *print_to_p;
 	void *arg = print_to_arg;
-	erts_print(to, arg, "%samcbf: %bpu\n", prefix, abs_max_cache_bad_fit);
-	erts_print(to, arg, "%srmcbf: %bpu\n", prefix, rel_max_cache_bad_fit);
-	erts_print(to, arg, "%smcs: %bpu\n", prefix, max_cache_size);
-	erts_print(to, arg, "%scci: %bpu\n", prefix, cache_check_interval);
+	erts_print(to, arg, "%samcbf: %beu\n", prefix, abs_max_cache_bad_fit);
+	erts_print(to, arg, "%srmcbf: %beu\n", prefix, rel_max_cache_bad_fit);
+	erts_print(to, arg, "%smcs: %beu\n", prefix, max_cache_size);
+	erts_print(to, arg, "%scci: %beu\n", prefix, cache_check_interval);
     }
 
     if (hpp || szp) {
@@ -1131,9 +1132,9 @@ info_calls(int *print_to_p, void *print_to_arg, Uint **hpp, Uint *szp)
 
 #define PRINT_CC(TO, TOA, CC)						\
     if (calls.CC.giga_no == 0)						\
-	erts_print(TO, TOA, "mseg_%s calls: %bpu\n", #CC, calls.CC.no);	\
+	erts_print(TO, TOA, "mseg_%s calls: %b32u\n", #CC, calls.CC.no);	\
     else								\
-	erts_print(TO, TOA, "mseg_%s calls: %bpu%09bpu\n", #CC,		\
+	erts_print(TO, TOA, "mseg_%s calls: %b32u%09b32u\n", #CC,		\
 		   calls.CC.giga_no, calls.CC.no)
 
 	int to = *print_to_p;
@@ -1215,13 +1216,13 @@ info_status(MemKind* mk, int *print_to_p, void *print_to_arg,
 	int to = *print_to_p;
 	void *arg = print_to_arg;
 
-	erts_print(to, arg, "cached_segments: %bpu\n", mk->cache_size);
-	erts_print(to, arg, "cache_hits: %bpu\n", mk->cache_hits);
-	erts_print(to, arg, "segments: %bpu %bpu %bpu\n",
+	erts_print(to, arg, "cached_segments: %beu\n", mk->cache_size);
+	erts_print(to, arg, "cache_hits: %beu\n", mk->cache_hits);
+	erts_print(to, arg, "segments: %beu %beu %beu\n",
 		   mk->segments.current.no, mk->segments.max.no, mk->segments.max_ever.no);
-	erts_print(to, arg, "segments_size: %bpu %bpu %bpu\n",
+	erts_print(to, arg, "segments_size: %beu %beu %beu\n",
 		   mk->segments.current.sz, mk->segments.max.sz, mk->segments.max_ever.sz);
-	erts_print(to, arg, "segments_watermark: %bpu\n",
+	erts_print(to, arg, "segments_watermark: %beu\n",
 		   mk->segments.current.watermark);
     }
 
@@ -1372,7 +1373,7 @@ erts_mseg_alloc_opt(ErtsAlcType_t atype, Uint *size_p, const ErtsMsegOpt_t *opt)
 void *
 erts_mseg_alloc(ErtsAlcType_t atype, Uint *size_p)
 {
-    return erts_mseg_alloc_opt(atype, size_p, &default_opt);
+    return erts_mseg_alloc_opt(atype, size_p, &erts_mseg_default_opt);
 }
 
 void
@@ -1387,7 +1388,7 @@ erts_mseg_dealloc_opt(ErtsAlcType_t atype, void *seg, Uint size,
 void
 erts_mseg_dealloc(ErtsAlcType_t atype, void *seg, Uint size)
 {
-    erts_mseg_dealloc_opt(atype, seg, size, &default_opt);
+    erts_mseg_dealloc_opt(atype, seg, size, &erts_mseg_default_opt);
 }
 
 void *
@@ -1405,7 +1406,7 @@ void *
 erts_mseg_realloc(ErtsAlcType_t atype, void *seg, Uint old_size,
 		  Uint *new_size_p)
 {
-    return erts_mseg_realloc_opt(atype, seg, old_size, new_size_p, &default_opt);
+    return erts_mseg_realloc_opt(atype, seg, old_size, new_size_p, &erts_mseg_default_opt);
 }
 
 void
@@ -1507,7 +1508,7 @@ erts_mseg_init(ErtsMsegInit_t *init)
     while ((page_size >> page_shift) != 1) {
 	if ((page_size & (1 << (page_shift - 1))) != 0)
 	    erl_exit(ERTS_ABORT_EXIT,
-		     "erts_mseg: Unexpected page_size %bpu\n", page_size);
+		     "erts_mseg: Unexpected page_size %beu\n", page_size);
 	page_shift++;
     }
 
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index d8053eb0d9..8f116030a8 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2002-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2002-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -60,15 +60,12 @@ typedef struct {
     int  preserv;
     UWord abs_shrink_th;
     UWord rel_shrink_th;
+#if HALFWORD_HEAP
+    int low_mem;
+#endif
 } ErtsMsegOpt_t;
 
-#define ERTS_MSEG_DEFAULT_OPT_INITIALIZER				\
-{									\
-    1,			/* Use cache				*/	\
-    1,			/* Preserv data				*/	\
-    0,			/* Absolute shrink threshold		*/	\
-    0			/* Relative shrink threshold		*/	\
-}
+extern const ErtsMsegOpt_t erts_mseg_default_opt;
 
 void *erts_mseg_alloc(ErtsAlcType_t, Uint *);
 void *erts_mseg_alloc_opt(ErtsAlcType_t, Uint *, const ErtsMsegOpt_t *);
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index 3ae5b8d747..f5c785d683 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -766,7 +766,7 @@ write_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
 		short filter;
 		int fd = (int) ebuf[i].ident;
 
-		switch ((int) ebuf[i].udata) {
+		switch ((int) (long) ebuf[i].udata) {
 
 		    /*
 		     * Since we use a lazy update approach EV_DELETE will
@@ -805,7 +805,7 @@ write_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
 			if (fd == (int) ebuf[j].ident) {
 			    ebuf[j].udata = (void *) ERTS_POLL_KQ_OP_HANDLED;
 			    if (!(ebuf[j].flags & EV_ERROR)) {
-				switch ((int) ebuf[j].udata) {
+				switch ((int) (long) ebuf[j].udata) {
 				case ERTS_POLL_KQ_OP_ADD2_W:
 				    filter = EVFILT_WRITE;
 				    goto rm_add_fb;
@@ -823,7 +823,8 @@ write_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
 			}
 		    }
 		    /* The other add succeded... */
-		    filter = (((int) ebuf[i].udata == ERTS_POLL_KQ_OP_ADD2_W)
+		    filter = ((((int) (long) ebuf[i].udata)
+			       == ERTS_POLL_KQ_OP_ADD2_W)
 			      ? EVFILT_READ
 			      : EVFILT_WRITE);
 		rm_add_fb:
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index 7662f190ef..074e2e247f 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -693,6 +693,7 @@ static void *break_waiter(void *param)
 	    ResetEvent(harr[0]);
 	    erts_mtx_lock(&break_waiter_lock);
 	    erts_atomic32_set(&break_waiter_state,BREAK_WAITER_GOT_BREAK);
+	    ERTS_THR_MEMORY_BARRIER;
 	    SetEvent(break_happened_event);
 	    erts_mtx_unlock(&break_waiter_lock);
 	    break;
@@ -700,6 +701,7 @@ static void *break_waiter(void *param)
 	    ResetEvent(harr[1]);
 	    erts_mtx_lock(&break_waiter_lock);
 	    erts_atomic32_set(&break_waiter_state,BREAK_WAITER_GOT_HALT);
+	    ERTS_THR_MEMORY_BARRIER;
 	    SetEvent(break_happened_event);
 	    erts_mtx_unlock(&break_waiter_lock);
 	    break;
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 37041ed987..a2159d063c 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -75,7 +75,7 @@ static int create_pipe(LPHANDLE, LPHANDLE, BOOL, BOOL);
 static int application_type(const char* originalName, char fullPath[MAX_PATH],
 			   BOOL search_in_path, BOOL handle_quotes,
 			   int *error_return);
-static int application_type_w(const char* originalName, WCHAR fullPath[MAX_PATH],
+static int application_type_w(const WCHAR *originalName, WCHAR fullPath[MAX_PATH],
 			      BOOL search_in_path, BOOL handle_quotes,
 			      int *error_return);
 
@@ -260,7 +260,7 @@ erts_sys_prepare_crash_dump(void)
 }
 
 static void
-init_console()
+init_console(void)
 {
     char* mode = erts_read_env("ERL_CONSOLE_MODE");
 
@@ -280,7 +280,7 @@ init_console()
     erts_free_read_env(mode);
 }
 
-int sys_max_files() 
+int sys_max_files(void) 
 {
     return max_files;
 }
@@ -296,10 +296,7 @@ int sys_max_files()
  */
 
 static int
-get_and_remove_option(argc, argv, option)
-    int* argc;			/* Number of arguments. */
-    char* argv[];		/* The argument vector. */
-    const char* option;		/* Option to search for and remove. */
+get_and_remove_option(int* argc, char* argv[], const char *option)
 {
     int i;
 
@@ -349,9 +346,7 @@ static char *get_and_remove_option2(int *argc, char **argv,
 char os_type[] = "win32";
 
 void
-os_flavor(namebuf, size)
-char* namebuf;			/* Where to return the name. */
-unsigned size;			/* Size of name buffer. */
+os_flavor(char *namebuf, unsigned size)
 {
     switch (int_os_version.dwPlatformId) {
     case VER_PLATFORM_WIN32_WINDOWS:
@@ -624,12 +619,7 @@ struct erl_drv_entry async_driver_entry = {
  */
 
 static DriverData*
-new_driver_data(port_num, packet_bytes, wait_objs_required, use_threads)
-    int port_num;		/* The port number. */
-    int packet_bytes;		/* Number of bytes in header. */
-    int wait_objs_required;	/* The number objects this port is going
-				/* wait for (typically 1 or 2). */
-    int use_threads;		/* TRUE if threads are intended to be used. */
+new_driver_data(int port_num, int packet_bytes, int wait_objs_required, int use_threads)
 {
     DriverData* dp;
     
@@ -867,12 +857,7 @@ threaded_handle_closer(LPVOID param)
  */
 
 static ErlDrvData
-set_driver_data(dp, ifd, ofd, read_write, report_exit)
-    DriverData* dp;
-    HANDLE ifd;
-    HANDLE ofd;
-    int read_write;
-    int report_exit;
+set_driver_data(DriverData* dp, HANDLE ifd, HANDLE ofd, int read_write, int report_exit)
 {
     int index = dp - driver_data;
     int result;
@@ -896,6 +881,31 @@ set_driver_data(dp, ifd, ofd, read_write, report_exit)
     return (ErlDrvData)index;
 }
 
+static ErlDrvData
+reuse_driver_data(DriverData *dp, HANDLE ifd, HANDLE ofd, int read_write, ErlDrvPort port_num)
+{
+    int index = dp - driver_data;
+    int result;
+
+    dp->port_num = port_num;
+    dp->in.fd = ifd;
+    dp->out.fd = ofd;
+    dp->report_exit = 0;
+
+    if (read_write & DO_READ) {
+	result = driver_select(dp->port_num, (ErlDrvEvent)dp->in.ov.hEvent,
+			       ERL_DRV_READ|ERL_DRV_USE, 1);
+	ASSERT(result != -1);
+    }
+
+    if (read_write & DO_WRITE) {
+	result = driver_select(dp->port_num, (ErlDrvEvent)dp->out.ov.hEvent,
+			       ERL_DRV_WRITE|ERL_DRV_USE, 1);
+	ASSERT(result != -1);
+    }
+    return (ErlDrvData)index;
+}
+
 /*
  * Initialises an AsyncIo structure.
  */
@@ -969,10 +979,7 @@ release_async_io(AsyncIo* aio, ErlDrvPort port_num)
  */
 
 static void
-async_read_file(aio, buf, numToRead)
-    AsyncIo* aio;		/* Pointer to driver data. */
-    LPVOID buf;			/* Pointer to buffer to receive data. */
-    DWORD numToRead;		/* Number of bytes to read. */
+async_read_file(AsyncIo* aio, LPVOID buf, DWORD numToRead)
 {
     aio->pendingError = NO_ERROR;
 #ifdef HARD_POLL_DEBUG
@@ -1023,10 +1030,9 @@ async_read_file(aio, buf, numToRead)
  * ----------------------------------------------------------------------
  */
 static int
-async_write_file(aio, buf, numToWrite)
-    AsyncIo* aio;		/* Pointer to async control block. */
-    LPVOID buf;			/* Pointer to buffer with data to write. */
-    DWORD numToWrite;		/* Number of bytes to write. */
+async_write_file(AsyncIo* aio,		/* Pointer to async control block. */
+		 LPVOID buf,		/* Pointer to buffer with data to write. */
+		 DWORD numToWrite)	/* Number of bytes to write. */
 {
     aio->pendingError = NO_ERROR;
     if (aio->thread != (HANDLE) -1) {
@@ -1070,12 +1076,12 @@ async_write_file(aio, buf, numToWrite)
  * ----------------------------------------------------------------------
  */
 static int
-get_overlapped_result(aio, pBytesRead, wait)
-    AsyncIo* aio;		/* Pointer to async control block. */
-    LPDWORD pBytesRead;		/* Where to place the number of bytes
-				 * transferred.
-				 */
-    BOOL wait;			/* If true, wait until result is ready. */
+get_overlapped_result(AsyncIo* aio,		/* Pointer to async control block. */
+		      LPDWORD pBytesRead,	/* Where to place the number of bytes
+						 * transferred.
+						 */
+		      BOOL wait			/* If true, wait until result is ready. */
+		      )
 {
     DWORD error = NO_ERROR;	/* Error status from last function. */
 
@@ -1145,7 +1151,7 @@ fd_init(void)
     return 0;
 }
 static int
-spawn_init()
+spawn_init(void)
 {
     int i;
 #if defined(ERTS_SMP) && defined(USE_CANCELIOEX)
@@ -1532,7 +1538,7 @@ create_child_process
 	siStartInfo.hStdOutput = hStdout;
 	siStartInfo.hStdError = hStderr;
 
-	applType = application_type_w(origcmd, (char *) execPath, FALSE, FALSE, 
+	applType = application_type_w((WCHAR *) origcmd, execPath, FALSE, FALSE, 
 				      errno_return);
 	if (applType == APPL_NONE) {
 	    return FALSE;
@@ -1555,7 +1561,7 @@ create_child_process
 	if (run_cmd) {
 	    WCHAR cmdPath[MAX_PATH];
 	    int cmdType;
-	    cmdType = application_type_w((char *) L"cmd.exe", (char *) cmdPath, TRUE, FALSE, errno_return);
+	    cmdType = application_type_w(L"cmd.exe", cmdPath, TRUE, FALSE, errno_return);
 	    if (cmdType == APPL_NONE || cmdType == APPL_DOS) {
 		return FALSE;
 	    }
@@ -1921,7 +1927,7 @@ static int application_type
     return applType;
 }
 
-static int application_type_w (const char *originalName, /* Name of the application to find. */ 
+static int application_type_w (const WCHAR *originalName, /* Name of the application to find. */ 
 			       WCHAR wfullpath[MAX_PATH],/* Filled with complete path to 
 							  * application. */
 			       BOOL search_in_path,      /* If we should search the system wide path */
@@ -1937,25 +1943,24 @@ static int application_type_w (const char *originalName, /* Name of the applicat
     static WCHAR extensions[][5] = {L"", L".com", L".exe", L".bat"};
     int is_quoted;
     int len;
-    WCHAR *wname = (WCHAR *) originalName;
     WCHAR xfullpath[MAX_PATH];
 
-    len = wcslen(wname);
-    is_quoted = handle_quotes && len > 0 && wname[0] == L'"' && 
-	wname[len-1] == L'"';
+    len = wcslen(originalName);
+    is_quoted = handle_quotes && len > 0 && originalName[0] == L'"' && 
+	originalName[len-1] == L'"';
 
     applType = APPL_NONE;
     *error_return = ENOENT;
     for (i = 0; i < (int) (sizeof(extensions) / sizeof(extensions[0])); i++) {
 	if(is_quoted) {
-	   lstrcpynW(xfullpath, wname+1, MAX_PATH - 7); /* Cannot start using StringCchCopy yet, we support
+	   lstrcpynW(xfullpath, originalName+1, MAX_PATH - 7); /* Cannot start using StringCchCopy yet, we support
 							   older platforms */
 	   len = wcslen(xfullpath);
 	   if(len > 0) {
 	       xfullpath[len-1] = L'\0';
 	   }
 	} else {
-	    lstrcpynW(xfullpath, wname, MAX_PATH - 5);
+	    lstrcpynW(xfullpath, originalName, MAX_PATH - 5);
 	}
 	wcscat(xfullpath, extensions[i]);
 	/* It seems that the Unicode version does not allow in and out parameter to overlap. */
@@ -2080,9 +2085,10 @@ threaded_reader(LPVOID param)
 	buf = OV_BUFFER_PTR(aio);
 	numToRead = OV_NUM_TO_READ(aio);
 	aio->pendingError = 0;
-	if (!ReadFile(aio->fd, buf, numToRead, &aio->bytesTransferred, NULL))
-	    aio->pendingError = GetLastError();
-	else if (aio->flags & DF_XLAT_CR) {
+	if (!ReadFile(aio->fd, buf, numToRead, &aio->bytesTransferred, NULL)) {
+	    int error = GetLastError();
+	    aio->pendingError = error;
+	} else if (aio->flags & DF_XLAT_CR) {
 	    char *s;
 	    int n;
 	    
@@ -2209,56 +2215,79 @@ translate_fd(int fd)
     return handle;
 }
 
+/* Driver level locking, start function is serialized */
+static DriverData *save_01_port = NULL;
+static DriverData *save_22_port = NULL;
+
 static ErlDrvData
 fd_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts)
 {
     DriverData* dp;
     int is_std_error = (opts->ofd == 2);
-    
-    opts->ifd = (int) translate_fd(opts->ifd);
-    opts->ofd = (int) translate_fd(opts->ofd);
-    if ((dp = new_driver_data(port_num, opts->packet_bytes, 2, TRUE)) == NULL)
-	return ERL_DRV_ERROR_GENERAL;
-    
-    if (!create_file_thread(&dp->in, DO_READ)) {
-	dp->port_num = PORT_FREE;
-	return ERL_DRV_ERROR_GENERAL;
-    }
-
-    if (!create_file_thread(&dp->out, DO_WRITE)) {
-	dp->port_num = PORT_FREE;
-	return ERL_DRV_ERROR_GENERAL;
-    }
-    
-    fd_driver_input = &(dp->in);
-    dp->in.flags = DF_XLAT_CR;
-    if (is_std_error) {
-	dp->out.flags |= DF_DROP_IF_INVH; /* Just drop messages if stderror
-					     is an invalid handle */
+    int in = opts->ifd, out = opts->ofd;
+
+    opts->ifd = (Uint) translate_fd(in);
+    opts->ofd = (Uint) translate_fd(out);
+    if ( in == 0 && out == 1 && save_01_port != NULL) {
+	dp = save_01_port;
+	return reuse_driver_data(dp, (HANDLE) opts->ifd, (HANDLE) opts->ofd, opts->read_write, port_num);
+    } else if (in == 2 && out == 2 && save_22_port != NULL) {
+	dp = save_22_port;
+	return reuse_driver_data(dp, (HANDLE) opts->ifd, (HANDLE) opts->ofd, opts->read_write, port_num);
+    } else {
+	if ((dp = new_driver_data(port_num, opts->packet_bytes, 2, TRUE)) == NULL)
+	    return ERL_DRV_ERROR_GENERAL;
+	
+	if (!create_file_thread(&dp->in, DO_READ)) {
+	    dp->port_num = PORT_FREE;
+	    return ERL_DRV_ERROR_GENERAL;
+	}
+	
+	if (!create_file_thread(&dp->out, DO_WRITE)) {
+	    dp->port_num = PORT_FREE;
+	    return ERL_DRV_ERROR_GENERAL;
+	}
+	
+	fd_driver_input = &(dp->in);
+	dp->in.flags = DF_XLAT_CR;
+	if (is_std_error) {
+	    dp->out.flags |= DF_DROP_IF_INVH; /* Just drop messages if stderror
+						 is an invalid handle */
+	}
+	
+	if ( in == 0 && out == 1) {
+	    save_01_port = dp;
+	} else if (in == 2 && out == 2) {
+	    save_22_port = dp;
+	}
+	return set_driver_data(dp, (HANDLE) opts->ifd, (HANDLE) opts->ofd, opts->read_write, 0);
     }
-    return set_driver_data(dp, opts->ifd, opts->ofd, opts->read_write, 0);
 }
 
 static void fd_stop(ErlDrvData d)
 {
   int fd = (int)d;
+  DriverData* dp = driver_data+fd;
   /*
-   * I don't know a clean way to terminate the threads
-   * (TerminateThread() doesn't release the stack),
-   * so will we'll let the threads live.  Normally, the fd
-   * driver is only used to support the -oldshell option,
-   * so this shouldn't be a problem in practice.
-   *
-   * Since we will not attempt to terminate the threads,
-   * better not close the input or output files either.
+   * There's no way we can terminate an fd port in a consistent way.
+   * Instead we let it live until it's opened again (which it is,
+   * as the only FD-drivers are for 0,1 and 2 adn the only time they
+   * get closed is by init:reboot).
+   * So - just deselect them and let everything be as is. 
+   * They get woken up in fd_start again, where the DriverData is
+   * remembered. /PaN
    */
+  if (dp->in.ov.hEvent != NULL) {
+      (void) driver_select(dp->port_num,
+			   (ErlDrvEvent)dp->in.ov.hEvent,
+			   ERL_DRV_READ, 0);
+  }
+  if (dp->out.ov.hEvent != NULL) {
+      (void) driver_select(dp->port_num,
+			   (ErlDrvEvent)dp->out.ov.hEvent,
+			   ERL_DRV_WRITE, 0);
+  }    
 
-  driver_data[fd].in.thread = (HANDLE) -1;
-  driver_data[fd].out.thread = (HANDLE) -1;
-  driver_data[fd].in.fd = INVALID_HANDLE_VALUE;
-  driver_data[fd].out.fd = INVALID_HANDLE_VALUE;
-
-  /*return */ common_stop(fd);
 }
 
 static ErlDrvData
@@ -2350,7 +2379,6 @@ threaded_exiter(LPVOID param)
      * because it is an auto reset event.  Therefore, always set the
      * exit flag and signal the event.
      */
-
     i = 0;
     if (dp->out.thread != (HANDLE) -1) {
 	dp->out.flags = DF_EXIT_THREAD;
@@ -2718,6 +2746,7 @@ ready_input(ErlDrvData drv_data, ErlDrvEvent ready_event)
 	    driver_failure_eof(dp->port_num);
 	} else {			/* Report real errors. */
 	    int error = GetLastError();
+
 	    (void) driver_select(dp->port_num, ready_event, ERL_DRV_READ, 0);
 	    _dosmaperr(error);
 	    driver_failure_posix(dp->port_num, errno);
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 3afcae494d..4d0c87bf12 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -200,7 +200,7 @@ release_tests_spec: make_emakefile
 		$(ERL_FILES) $(RELSYSDIR)
 	$(INSTALL_DATA) $(NO_OPT_ERL_FILES) $(RELSYSDIR)
 	$(INSTALL_DATA) $(NATIVE_ERL_FILES) $(RELSYSDIR)
-	chmod -f -R u+w $(RELSYSDIR)
+	chmod -R u+w $(RELSYSDIR)
 	tar cf - *_SUITE_data | (cd $(RELSYSDIR); tar xf -)
 
 release_docs_spec:
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl
index 509586826b..c7617d3b90 100644
--- a/erts/emulator/test/bif_SUITE.erl
+++ b/erts/emulator/test/bif_SUITE.erl
@@ -24,6 +24,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
+	 display/1, display_huge/0,
 	 types/1,
 	 t_list_to_existing_atom/1,os_env/1,otp_7526/1,
 	 binary_to_atom/1,binary_to_existing_atom/1,
@@ -33,6 +34,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     [types, t_list_to_existing_atom, os_env, otp_7526,
+     display,
      atom_to_binary, binary_to_atom, binary_to_existing_atom,
      min_max].
 
@@ -60,6 +62,31 @@ end_per_testcase(_Func, Config) ->
     Dog=?config(watchdog, Config),
     ?t:timetrap_cancel(Dog).
 
+
+display(suite) ->
+    [];
+display(doc) ->
+    ["Uses erlang:display to test that erts_printf does not do deep recursion"];
+display(Config) when is_list(Config) ->
+    Pa = filename:dirname(code:which(?MODULE)),
+    {ok, Node} = test_server:start_node(display_huge_term,peer,
+					[{args, "-pa "++Pa}]),
+    true = rpc:call(Node,?MODULE,display_huge,[]),
+    test_server:stop_node(Node),
+    ok.
+
+display_huge() ->
+    erlang:display(deeep(100000)).
+
+deeep(0,Acc) ->
+    Acc;
+deeep(N,Acc) ->
+    deeep(N-1,[Acc|[]]).
+
+deeep(N) ->
+    deeep(N,[hello]).
+
+
 types(Config) when is_list(Config) ->
     c:l(erl_bif_types),
     case erlang:function_exported(erl_bif_types, module_info, 0) of
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index 7e409f053e..4e82381fba 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -23,12 +23,12 @@
 %% Tests binaries and the BIFs:
 %%	list_to_binary/1
 %%      iolist_to_binary/1
-%%      bitstr_to_list/1
+%%      list_to_bitstring/1
 %%	binary_to_list/1
 %%	binary_to_list/3
 %%	binary_to_term/1
 %%  	binary_to_term/2
-%%      bitstr_to_list/1
+%%      bitstring_to_list/1
 %%	term_to_binary/1
 %%      erlang:external_size/1
 %%	size(Binary)
@@ -275,12 +275,33 @@ bad_list_to_binary(Config) when is_list(Config) ->
     ?line test_bad_bin(fun(X, Y) -> X*Y end),
     ?line test_bad_bin([1,fun(X) -> X + 1 end,2|fun() -> 0 end]),
     ?line test_bad_bin([fun(X) -> X + 1 end]),
+
+    %% Test iolists that do not fit in the address space.
+    %% Unfortunately, it would be too slow to test in a 64-bit emulator.
+    case erlang:system_info(wordsize) of
+	4 -> huge_iolists();
+	_ -> ok
+    end.
+
+huge_iolists() ->
+    FourGigs = 1 bsl 32,
+    ?line Sizes = [FourGigs+N || N <- lists:seq(0, 64)] ++
+	[1 bsl N || N <- lists:seq(33, 37)],
+    ?line Base = <<0:(1 bsl 20)/unit:8>>,
+    [begin
+	 L = build_iolist(Sz, Base),
+	 ?line {'EXIT',{system_limit,_}} = (catch list_to_binary([L])),
+	 ?line {'EXIT',{system_limit,_}} = (catch list_to_bitstring([L])),
+	 ?line {'EXIT',{system_limit,_}} = (catch binary:list_to_bin([L])),
+	 ?line {'EXIT',{system_limit,_}} = (catch iolist_to_binary(L))
+	 end || Sz <- Sizes],
     ok.
 
 test_bad_bin(List) ->
     {'EXIT',{badarg,_}} = (catch list_to_binary(List)),
     {'EXIT',{badarg,_}} = (catch iolist_to_binary(List)),
-    {'EXIT',{badarg,_}} = (catch list_to_bitstring(List)).
+    {'EXIT',{badarg,_}} = (catch list_to_bitstring(List)),
+    {'EXIT',{badarg,_}} = (catch iolist_size(List)).
 
 bad_binary_to_list(doc) -> "Tries binary_to_list/1,3 with bad arguments.";
 bad_binary_to_list(Config) when is_list(Config) ->
@@ -516,18 +537,65 @@ external_size_1(Term, Size0, Limit) when Size0 < Limit ->
 external_size_1(_, _, _) -> ok.
 
 t_iolist_size(Config) when is_list(Config) ->
-    %% Build a term whose external size only fits in a big num (on 32-bit CPU).
-    Bin = iolist_to_binary(lists:seq(0, 254)),
-    ?line ok = t_iolist_size_1(Bin, 0, 16#7FFFFFFF),
-    ?line ok = t_iolist_size_1(make_unaligned_sub_binary(Bin), 0, 16#7FFFFFFF).
+    ?line Seed = now(),
+    ?line io:format("Seed: ~p", [Seed]),
+    ?line random:seed(Seed),
+    ?line Base = <<0:(1 bsl 20)/unit:8>>,
+    ?line Powers = [1 bsl N || N <- lists:seq(2, 37)],
+    ?line Sizes0 = [[N - random:uniform(N div 2),
+		     lists:seq(N-2, N+2),
+		     N+N div 2,
+		     N + random:uniform(N div 2)] ||
+		       N <- Powers],
+    %% Test sizes around 1^32 more thoroughly.
+    FourGigs = 1 bsl 32,
+    ?line Sizes1 = [FourGigs+N || N <- lists:seq(-8, 40)] ++ Sizes0,
+    ?line Sizes2 = lists:flatten(Sizes1),
+    ?line Sizes = lists:usort(Sizes2),
+    io:format("~p sizes:", [length(Sizes)]),
+    io:format("~p\n", [Sizes]),
+    ?line [Sz = iolist_size(build_iolist(Sz, Base)) || Sz <- Sizes],
+    ok.
 
-t_iolist_size_1(IOList, Size0, Limit) when Size0 < Limit ->
-    case iolist_size(IOList) of
-	Size when is_integer(Size), Size0 < Size ->
-	    io:format("~p", [Size]),
-	    t_iolist_size_1([IOList|IOList], Size, Limit)
+build_iolist(N, Base) when N < 16 ->
+    case random:uniform(3) of
+	1 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    Bin;
+	_ ->
+	    lists:seq(1, N)
+    end;
+build_iolist(N, Base) when N =< byte_size(Base) ->
+    case random:uniform(3) of
+	1 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    Bin;
+	2 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    [Bin];
+	3 ->
+	    case N rem 2 of
+		0 ->
+		    L = build_iolist(N div 2, Base),
+		    [L,L];
+		1 ->
+		    L = build_iolist(N div 2, Base),
+		    [L,L,45]
+	    end
     end;
-t_iolist_size_1(_, _, _) -> ok.
+build_iolist(N0, Base) ->
+    Small = random:uniform(15),
+    Seq = lists:seq(1, Small),
+    N = N0 - Small,
+    case N rem 2 of
+	0 ->
+	    L = build_iolist(N div 2, Base),
+	    [L,L|Seq];
+	1 ->
+	    L = build_iolist(N div 2, Base),
+	    [47,L,L|Seq]
+    end.
+
 
 bad_binary_to_term_2(doc) -> "OTP-4053.";
 bad_binary_to_term_2(suite) -> [];
@@ -1183,34 +1251,7 @@ deep(Config) when is_list(Config) ->
 
 deep_roundtrip(T) ->
     B = term_to_binary(T),
-    true = deep_eq(T, binary_to_term(B)).
-
-%%
-%% FIXME: =:= runs out of stack.
-%%
-deep_eq([H1|T1], [H2|T2]) ->
-    deep_eq(H1, H2) andalso deep_eq(T1, T2);
-deep_eq(T1, T2) when tuple_size(T1) =:= tuple_size(T2) ->
-    deep_eq_tup(T1, T2, tuple_size(T1));
-deep_eq(T1, T2) when is_function(T1), is_function(T2) ->
-    {uniq,U1} = erlang:fun_info(T1, uniq),
-    {index,I1} = erlang:fun_info(T1, index),
-    {arity,A1} = erlang:fun_info(T1, arity),
-    {env,E1} = erlang:fun_info(T1, env),
-    {uniq,U2} = erlang:fun_info(T2, uniq),
-    {index,I2} = erlang:fun_info(T2, index),
-    {arity,A2} = erlang:fun_info(T2, arity),
-    {env,E2} = erlang:fun_info(T2, env),
-    U1 =:= U2 andalso I1 =:= I2 andalso A1 =:= A2 andalso
-	deep_eq(E1, E2);
-deep_eq(T1, T2) ->
-    T1 =:= T2.
-
-deep_eq_tup(_T1, _T2, 0) ->
-    true;
-deep_eq_tup(T1, T2, N) ->
-    deep_eq(element(N, T1), element(N, T2)) andalso
-	deep_eq_tup(T1, T2, N-1).
+    T = binary_to_term(B).
 
 obsolete_funs(Config) when is_list(Config) ->
     erts_debug:set_internal_state(available_internal_state, true),
diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl
index 703a00a598..a062cea117 100644
--- a/erts/emulator/test/code_SUITE.erl
+++ b/erts/emulator/test/code_SUITE.erl
@@ -483,7 +483,7 @@ do_false_dependency(Init, Code) ->
     %% Spawn process. Make sure it has the appropriate init function
     %% and returned. CP should not contain garbage after the return.
     Parent = self(),
-    ?line Pid = spawn_link(fun() -> false_dependency_loop(Parent, Init) end),
+    ?line Pid = spawn_link(fun() -> false_dependency_loop(Parent, Init, true) end),
     ?line receive initialized -> ok end,
 
     %% Reload the module. Make sure the process is still alive.
@@ -498,14 +498,23 @@ do_false_dependency(Init, Code) ->
     ?line unlink(Pid), exit(Pid, kill),
     ?line true = erlang:purge_module(cpbugx),
     ?line true = erlang:delete_module(cpbugx),
+    ?line code:is_module_native(cpbugx),  % test is_module_native on deleted code
     ?line true = erlang:purge_module(cpbugx),
+    ?line code:is_module_native(cpbugx),  % test is_module_native on purged code
     ok.
     
-false_dependency_loop(Parent, Init) ->
+false_dependency_loop(Parent, Init, SendInitAck) ->
     Init(),
-    Parent ! initialized,
+    case SendInitAck of
+	true -> Parent ! initialized;
+	false -> void
+		 %% Just send one init-ack. I guess the point of this test
+		 %% wasn't to fill parents msg-queue (?). Seen to cause
+		 %% out-of-mem (on halfword-vm for some reason) by
+		 %% 91 million msg in queue. /sverker
+    end,
     receive
-	_ -> false_dependency_loop(Parent, Init)
+	_ -> false_dependency_loop(Parent, Init, false)
     end.
 
 coverage(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 7600a44988..f6cf01ce16 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -38,7 +38,7 @@
 	 timer_change/1,
 	 timer_delay/1,
 	 queue_echo/1,
-	 fun_to_port/1,
+	 outputv_errors/1,
 	 driver_unloaded/1,
 	 io_ready_exit/1,
 	 use_fallback_pollset/1,
@@ -74,7 +74,8 @@
 	 missing_callbacks/1,
 	 smp_select/1,
 	 driver_select_use/1,
-	 thread_mseg_alloc_cache_clean/1]).
+	 thread_mseg_alloc_cache_clean/1,
+	 otp_9302/1]).
 
 -export([bin_prefix/2]).
 
@@ -129,7 +130,7 @@ end_per_testcase(Case, Config) ->
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [fun_to_port, outputv_echo, queue_echo, {group, timer},
+    [outputv_errors, outputv_echo, queue_echo, {group, timer},
      driver_unloaded, io_ready_exit, use_fallback_pollset,
      bad_fd_in_pollset, driver_event, fd_change,
      steal_control, otp_6602, 'driver_system_info_ver1.0',
@@ -141,7 +142,8 @@ all() ->
      smaller_minor_vsn_drv, peek_non_existing_queue,
      otp_6879, caller, many_events, missing_callbacks,
      smp_select, driver_select_use,
-     thread_mseg_alloc_cache_clean].
+     thread_mseg_alloc_cache_clean,
+     otp_9302].
 
 groups() -> 
     [{timer, [],
@@ -165,37 +167,89 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
     Config.
 
-
-fun_to_port(doc) -> "Test sending a fun to port with an outputv-capable driver.";
-fun_to_port(Config) when is_list(Config) ->
+outputv_errors(doc) -> "Test sending bad types to port with an outputv-capable driver.";
+outputv_errors(Config) when is_list(Config) ->
     ?line Path = ?config(data_dir, Config),
     ?line erl_ddll:start(),
     ?line ok = load_driver(Path, outputv_drv),
 
-    ?line fun_to_port_1(fun() -> 33 end),
-    ?line fun_to_port_1([fun() -> 42 end]),
-    ?line fun_to_port_1([1|fun() -> 42 end]),
-    L = build_io_list(65536),
-    ?line fun_to_port_1([L,fun() -> 42 end]),
-    ?line fun_to_port_1([L|fun() -> 42 end]),
+    outputv_bad_types(fun(T) ->
+			      ?line outputv_errors_1(T),
+			      ?line outputv_errors_1([1|T]),
+			      ?line L = [1,2,3],
+			      ?line outputv_errors_1([L,T]),
+			      ?line outputv_errors_1([L|T])
+		      end),
+    outputv_errors_1(42),
+
+    %% Test iolists that do not fit in the address space.
+    %% Unfortunately, it would be too slow to test in a 64-bit emulator.
+    case erlang:system_info(wordsize) of
+	4 -> outputv_huge_iolists();
+	_ -> ok
+    end.
+
+outputv_bad_types(Test) ->
+    Types = [-1,256,atom,42.0,{a,b,c},make_ref(),fun() -> 42 end,
+	     [1|2],<<1:1>>,<<1:9>>,<<1:15>>],
+    _ = [Test(Type) || Type <- Types],
+    ok.
+
+outputv_huge_iolists() ->
+    FourGigs = 1 bsl 32,
+    ?line Sizes = [FourGigs+N || N <- lists:seq(0, 64)] ++
+	[1 bsl N || N <- lists:seq(33, 37)],
+    ?line Base = <<0:(1 bsl 20)/unit:8>>,
+    [begin
+	 ?line L = build_iolist(Sz, Base),
+	 ?line outputv_errors_1(L)
+     end || Sz <- Sizes],
     ok.
 
-fun_to_port_1(Term) ->
-    Port = open_port({spawn,outputv_drv}, []),
+outputv_errors_1(Term) ->
+    Port = open_port({spawn_driver,outputv_drv}, []),
     {'EXIT',{badarg,_}} = (catch port_command(Port, Term)),
     port_close(Port).
 
-build_io_list(0) -> [];
-build_io_list(1) -> [7];
-build_io_list(N) ->
-    L = build_io_list(N div 2),
+build_iolist(N, Base) when N < 16 ->
+    case random:uniform(3) of
+	1 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    Bin;
+	_ ->
+	    lists:seq(1, N)
+    end;
+build_iolist(N, Base) when N =< byte_size(Base) ->
+    case random:uniform(3) of
+	1 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    Bin;
+	2 ->
+	    <<Bin:N/binary,_/binary>> = Base,
+	    [Bin];
+	3 ->
+	    case N rem 2 of
+		0 ->
+		    L = build_iolist(N div 2, Base),
+		    [L,L];
+		1 ->
+		    L = build_iolist(N div 2, Base),
+		    [L,L,45]
+	    end
+    end;
+build_iolist(N0, Base) ->
+    Small = random:uniform(15),
+    Seq = lists:seq(1, Small),
+    N = N0 - Small,
     case N rem 2 of
-	0 -> [L|L];
-	1 -> [7,L|L]
+	0 ->
+	    L = build_iolist(N div 2, Base),
+	    [L,L|Seq];
+	1 ->
+	    L = build_iolist(N div 2, Base),
+	    [47,L,L|Seq]
     end.
 
-
-
 outputv_echo(doc) -> ["Test echoing data with a driver that supports outputv."];
 outputv_echo(Config) when is_list(Config) ->
     ?line Dog = test_server:timetrap(test_server:minutes(10)),
@@ -1838,13 +1892,39 @@ thread_mseg_alloc_cache_clean_test(Port, N, CCI, Size) ->
     ?line ?t:format("CCC = ~p~n", [CCC]),
     ?line true = CCC > OCCC,
     ?line thread_mseg_alloc_cache_clean_test(Port, N-1, CCI, Size).
-    
-    
+
+otp_9302(Config) when is_list(Config) ->
+    ?line Path = ?config(data_dir, Config),
+    ?line erl_ddll:start(),
+    ?line ok = load_driver(Path, otp_9302_drv),
+    ?line Port = open_port({spawn, otp_9302_drv}, []),
+    ?line true = is_port(Port),
+    ?line port_command(Port, ""),
+    ?line {msg, block} = get_port_msg(Port, infinity),
+    ?line {msg, job} = get_port_msg(Port, infinity),
+    ?line case erlang:system_info(thread_pool_size) of
+	      0 ->
+		  {msg, cancel} = get_port_msg(Port, infinity);
+	      _ ->
+		  ok
+	  end,
+    ?line {msg, job} = get_port_msg(Port, infinity),
+    ?line {msg, end_of_jobs} = get_port_msg(Port, infinity),
+    ?line no_msg = get_port_msg(Port, 2000),
+    ?line port_close(Port),
+    ?line ok.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% 		Utilities
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-    
+
+get_port_msg(Port, Timeout) ->
+    receive
+	{Port, What} ->
+	    {msg, What}
+    after Timeout ->
+	    no_msg
+    end.
 
 wait_until(Fun) ->
     case Fun() of
diff --git a/erts/emulator/test/driver_SUITE_data/Makefile.src b/erts/emulator/test/driver_SUITE_data/Makefile.src
index 4ac7987d2f..5b3ba1557e 100644
--- a/erts/emulator/test/driver_SUITE_data/Makefile.src
+++ b/erts/emulator/test/driver_SUITE_data/Makefile.src
@@ -11,7 +11,8 @@ MISC_DRVS =		outputv_drv@dll@ \
 			caller_drv@dll@ \
 			many_events_drv@dll@ \
 			missing_callback_drv@dll@ \
-			thr_alloc_drv@dll@
+			thr_alloc_drv@dll@ \
+			otp_9302_drv@dll@
 
 SYS_INFO_DRVS = 	sys_info_1_0_drv@dll@ \
 			sys_info_1_1_drv@dll@ \
diff --git a/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
new file mode 100644
index 0000000000..beee1b735f
--- /dev/null
+++ b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
@@ -0,0 +1,232 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2011. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+#ifdef __WIN32__
+#include <windows.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include "erl_driver.h"
+
+static void stop(ErlDrvData drv_data);
+static ErlDrvData start(ErlDrvPort port,
+			char *command);
+static void output(ErlDrvData drv_data,
+		   char *buf, int len);
+static void ready_async(ErlDrvData drv_data,
+			ErlDrvThreadData thread_data);
+
+static ErlDrvEntry otp_9302_drv_entry = { 
+    NULL /* init */,
+    start,
+    stop,
+    output,
+    NULL /* ready_input */,
+    NULL /* ready_output */,
+    "otp_9302_drv",
+    NULL /* finish */,
+    NULL /* handle */,
+    NULL /* control */,
+    NULL /* timeout */,
+    NULL /* outputv */,
+    ready_async,
+    NULL /* flush */,
+    NULL /* call */,
+    NULL /* event */,
+    ERL_DRV_EXTENDED_MARKER,
+    ERL_DRV_EXTENDED_MAJOR_VERSION,
+    ERL_DRV_EXTENDED_MINOR_VERSION,
+    ERL_DRV_FLAG_USE_PORT_LOCKING,
+    NULL /* handle2 */,
+    NULL /* handle_monitor */
+};
+
+typedef struct Otp9302AsyncData_ Otp9302AsyncData;
+
+typedef struct {
+    ErlDrvMutex *mtx;
+    Otp9302AsyncData *start;
+    Otp9302AsyncData *end;
+} Otp9302MsgQ;
+
+typedef struct {
+    ErlDrvPort port;
+    int smp;
+    Otp9302MsgQ msgq;
+} Otp9302Data;
+
+struct Otp9302AsyncData_ {
+    Otp9302AsyncData *next;
+    ErlDrvPort port;
+    int smp;
+    int refc;
+    int block;
+    struct {
+	ErlDrvTermData port;
+	ErlDrvTermData receiver;
+	ErlDrvTermData msg;
+    } term_data;
+    Otp9302MsgQ *msgq;
+};
+
+
+DRIVER_INIT(otp_9302_drv)
+{
+    return &otp_9302_drv_entry;
+}
+
+static void stop(ErlDrvData drv_data)
+{
+    Otp9302Data *data = (Otp9302Data *) drv_data;
+    if (!data->smp)
+	erl_drv_mutex_destroy(data->msgq.mtx);
+    driver_free(data);
+}
+
+static ErlDrvData start(ErlDrvPort port,
+			char *command)
+{
+    Otp9302Data *data;
+    ErlDrvSysInfo sys_info;
+
+    data = driver_alloc(sizeof(Otp9302Data));
+    if (!data)
+	return ERL_DRV_ERROR_GENERAL;
+
+    data->port = port;
+
+    driver_system_info(&sys_info, sizeof(ErlDrvSysInfo));
+    data->smp = sys_info.smp_support;
+
+    if (!data->smp) {
+	data->msgq.start = NULL;
+	data->msgq.end = NULL;
+	data->msgq.mtx = erl_drv_mutex_create("");
+	if (!data->msgq.mtx) {
+	    driver_free(data);
+	    return ERL_DRV_ERROR_GENERAL;
+	}
+    }
+
+    return (ErlDrvData) data;
+}
+
+static void send_reply(Otp9302AsyncData *adata)
+{
+    ErlDrvTermData spec[] = {
+	ERL_DRV_PORT, adata->term_data.port,
+	ERL_DRV_ATOM, adata->term_data.msg,
+	ERL_DRV_TUPLE, 2
+    };
+    driver_send_term(adata->port, adata->term_data.receiver,
+		     spec, sizeof(spec)/sizeof(spec[0]));
+}
+
+static void enqueue_reply(Otp9302AsyncData *adata)
+{
+    Otp9302MsgQ *msgq = adata->msgq;
+    adata->next = NULL;
+    adata->refc++;
+    erl_drv_mutex_lock(msgq->mtx);
+    if (msgq->end)
+	msgq->end->next = adata;
+    else
+	msgq->end = msgq->start = adata;
+    msgq->end = adata;
+    erl_drv_mutex_unlock(msgq->mtx);
+}
+
+static void dequeue_replies(Otp9302AsyncData *adata)
+{
+    Otp9302MsgQ *msgq = adata->msgq;
+    erl_drv_mutex_lock(msgq->mtx);
+    if (--adata->refc == 0)
+	driver_free(adata);
+    while (msgq->start) {
+	send_reply(msgq->start);
+	adata = msgq->start;
+	msgq->start = msgq->start->next;
+	if (--adata->refc == 0)
+	    driver_free(adata);
+    }
+    msgq->start = msgq->end = NULL;
+    erl_drv_mutex_unlock(msgq->mtx);
+}
+
+static void async_invoke(void *data)
+{
+    Otp9302AsyncData *adata = (Otp9302AsyncData *) data;
+    if (adata->block) {
+#ifdef __WIN32__
+	Sleep((DWORD) 2000);
+#else
+	sleep(2);
+#endif
+    }
+    if (adata->smp)
+	send_reply(adata);
+    else
+	enqueue_reply(adata);
+}
+
+static void ready_async(ErlDrvData drv_data,
+			ErlDrvThreadData thread_data)
+{
+    Otp9302AsyncData *adata = (Otp9302AsyncData *) thread_data;
+    if (adata->smp)
+	driver_free(adata);
+    else
+	dequeue_replies(adata);
+}
+
+static void output(ErlDrvData drv_data,
+		   char *buf, int len)
+{
+    Otp9302Data *data = (Otp9302Data *) drv_data;
+    ErlDrvTermData td_port = driver_mk_port(data->port);
+    ErlDrvTermData td_receiver = driver_caller(data->port);
+    ErlDrvTermData td_job = driver_mk_atom("job");
+    unsigned int key = (unsigned int) data->port;
+    long id[5];
+    Otp9302AsyncData *ad[5];
+    int i;
+
+    for (i = 0; i < sizeof(ad)/sizeof(ad[0]); i++) {
+	ad[i] = driver_alloc(sizeof(Otp9302AsyncData));
+	if (!ad[i])
+	    abort();
+
+	ad[i]->smp = data->smp;
+	ad[i]->port = data->port;
+	ad[i]->block = 0;
+	ad[i]->refc = 1;
+	ad[i]->term_data.port = td_port;
+	ad[i]->term_data.receiver = td_receiver;
+	ad[i]->term_data.msg = td_job;
+	ad[i]->msgq = &data->msgq;
+    }
+    ad[0]->block = 1;
+    ad[0]->term_data.msg = driver_mk_atom("block");
+    ad[2]->term_data.msg = driver_mk_atom("cancel");
+    ad[4]->term_data.msg = driver_mk_atom("end_of_jobs");
+    for (i = 0; i < sizeof(id)/sizeof(id[0]); i++)
+	id[i] = driver_async(data->port, &key, async_invoke, ad[i], driver_free);
+    if (id[2] > 0)
+	driver_async_cancel(id[2]);
+}
diff --git a/erts/emulator/test/estone_SUITE.erl b/erts/emulator/test/estone_SUITE.erl
index 2ba9375a41..2417d4bcfe 100644
--- a/erts/emulator/test/estone_SUITE.erl
+++ b/erts/emulator/test/estone_SUITE.erl
@@ -31,7 +31,7 @@
 	 trav/1,
 	 port_io/1,
 	 large_dataset_work/1,
-	 large_local_dataset_work/1,mk_big_procs/1,big_proc/0,
+	 large_local_dataset_work/1,mk_big_procs/1,big_proc/0, very_big/1,
 	 alloc/1,
 	 bif_dispatch/1,
 	 binary_h/1,echo/1,
diff --git a/erts/emulator/test/exception_SUITE.erl b/erts/emulator/test/exception_SUITE.erl
index d44dc117d2..9d6fc9521d 100644
--- a/erts/emulator/test/exception_SUITE.erl
+++ b/erts/emulator/test/exception_SUITE.erl
@@ -275,7 +275,16 @@ stacktrace(Conf) when is_list(Conf) ->
     ?line [{?MODULE,stacktrace_1,3}|_] = erase(stacktrace1),
     ?line St4 = erase(stacktrace2),
     ?line St4 = erlang:get_stacktrace(),
-    ok.
+
+    try
+	?line stacktrace_2()
+    catch
+	error:{badmatch,_} ->
+	    [{?MODULE,stacktrace_2,0},
+	     {?MODULE,stacktrace,1}|_] =
+		erlang:get_stacktrace(),
+	    ok
+    end.
 
 stacktrace_1(X, C1, Y) ->
     erase(stacktrace1),
@@ -295,6 +304,9 @@ stacktrace_1(X, C1, Y) ->
         put(stacktrace2, erlang:get_stacktrace())
     end.
 
+stacktrace_2() ->
+    ok = erlang:process_info(self(), current_function),
+    ok.
 
 
 nested_stacktrace(Conf) when is_list(Conf) ->
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index b79c30d8d9..91d695d979 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -1121,7 +1121,14 @@ is_checks(Config) when is_list(Config) ->
     ?line ensure_lib_loaded(Config, 1),
     ?line ok = check_is(hejsan, <<19,98>>, make_ref(), ok, fun() -> ok end,
 			self(), hd(erlang:ports()), [], [1,9,9,8],
-			{hejsan, "hejsan", [$h,"ejs",<<"an">>]}).
+			{hejsan, "hejsan", [$h,"ejs",<<"an">>]}),
+    try
+        ?line error = check_is_exception(),
+        ?line throw(expected_badarg)
+    catch
+        error:badarg ->
+            ?line ok
+    end.
 
 get_length(doc) -> ["Test all enif_get_length functions"];
 get_length(Config) when is_list(Config) ->
@@ -1245,6 +1252,7 @@ release_resource(_) -> ?nif_stub.
 last_resource_dtor_call() -> ?nif_stub.
 make_new_resource(_,_) -> ?nif_stub.
 check_is(_,_,_,_,_,_,_,_,_,_) -> ?nif_stub.
+check_is_exception() -> ?nif_stub.
 length_test(_,_,_,_,_) -> ?nif_stub.
 make_atoms() -> ?nif_stub.
 make_strings() -> ?nif_stub.
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 8489124966..0bb93daa33 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2009-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2009-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -802,6 +802,23 @@ static ERL_NIF_TERM check_is(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
 }
 
 /*
+ * no arguments
+ *
+ * This function is separate from check_is because it calls enif_make_badarg
+ * and so it must return the badarg exception as its return value. Thus, the
+ * badarg exception indicates success. Failure is indicated by returning an
+ * error atom.
+ */
+static ERL_NIF_TERM check_is_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    ERL_NIF_TERM error_atom = enif_make_atom(env, "error");
+    ERL_NIF_TERM badarg = enif_make_badarg(env);
+    if (enif_is_exception(env, error_atom)) return error_atom;
+    if (!enif_is_exception(env, badarg)) return error_atom;
+    return badarg;
+}
+
+/*
  * argv[0] atom with length of 6
  * argv[1] list with length of 6
  * argv[2] empty list
@@ -1383,6 +1400,7 @@ static ErlNifFunc nif_funcs[] =
     {"last_resource_dtor_call", 0, last_resource_dtor_call},
     {"make_new_resource", 2, make_new_resource},
     {"check_is", 10, check_is},
+    {"check_is_exception", 0, check_is_exception},
     {"length_test", 5, length_test},
     {"make_atoms", 0, make_atoms},
     {"make_strings", 0, make_strings},
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index 36bae908aa..f68e712268 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -50,7 +50,8 @@
 	 processes_last_call_trap/1, processes_gc_trap/1,
 	 processes_term_proc_list/1,
 	 otp_7738_waiting/1, otp_7738_suspended/1,
-	 otp_7738_resume/1]).
+	 otp_7738_resume/1,
+	 garb_other_running/1]).
 -export([prio_server/2, prio_client/2]).
 
 -export([init_per_testcase/2, end_per_testcase/2]).
@@ -72,7 +73,7 @@ all() ->
      bad_register, garbage_collect, process_info_messages,
      process_flag_badarg, process_flag_heap_size,
      spawn_opt_heap_size, otp_6237, {group, processes_bif},
-     {group, otp_7738}].
+     {group, otp_7738}, garb_other_running].
 
 groups() -> 
     [{t_exit_2, [],
@@ -2116,6 +2117,41 @@ otp_7738_test(Type) ->
 	  end,
     ?line ok.
 
+gor(Reds, Stop) ->
+    receive
+	{From, reds} ->
+	    From ! {reds, Reds, self()},
+	    gor(Reds+1, Stop);
+	{From, Stop} ->
+	    From ! {stopped, Stop, Reds, self()}
+    after 0 ->
+	    gor(Reds+1, Stop)
+    end.
+
+garb_other_running(Config) when is_list(Config) ->
+    ?line Stop = make_ref(),
+    ?line {Pid, Mon} = spawn_monitor(fun () -> gor(0, Stop) end),
+    ?line Reds = lists:foldl(fun (_, OldReds) ->
+				     ?line erlang:garbage_collect(Pid),
+				     ?line receive after 1 -> ok end,
+				     ?line Pid ! {self(), reds},
+				     ?line receive
+					       {reds, NewReds, Pid} ->
+						   ?line true = (NewReds > OldReds),
+						   ?line NewReds
+					   end
+			     end,
+			     0,
+			     lists:seq(1, 10000)),
+    ?line receive after 1 -> ok end,
+    ?line Pid ! {self(), Stop},
+    ?line receive
+	      {stopped, Stop, StopReds, Pid} ->
+		  ?line true = (StopReds > Reds)
+	  end,
+    ?line receive {'DOWN', Mon, process, Pid, normal} -> ok end,
+    ?line ok.
+
 %% Internal functions
 
 wait_until(Fun) ->
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c
index 65ff0cd6b2..08576d923f 100644
--- a/erts/epmd/src/epmd.c
+++ b/erts/epmd/src/epmd.c
@@ -2,7 +2,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -33,6 +33,7 @@
 
 static void usage(EpmdVars *);
 static void run_daemon(EpmdVars*);
+static char* get_addresses(void);
 static int get_port_no(void);
 static int check_relaxed(void);
 #ifdef __WIN32__
@@ -133,6 +134,7 @@ int main(int argc, char** argv)
 {
     EpmdVars g_empd_vars;
     EpmdVars *g = &g_empd_vars;
+    int i;
 #ifdef __WIN32__
     WORD wVersionRequested;
     WSADATA wsaData;
@@ -158,8 +160,9 @@ int main(int argc, char** argv)
     g->argv = NULL;
 #endif
 
-    g->port  = get_port_no();
-    g->debug = 0;
+    g->addresses      = get_addresses();
+    g->port           = get_port_no();
+    g->debug          = 0;
 
     g->silent         = 0; 
     g->is_daemon      = 0;
@@ -168,12 +171,14 @@ int main(int argc, char** argv)
     g->delay_accept   = 0;
     g->delay_write    = 0;
     g->progname       = argv[0];
-    g->listenfd       = -1;
     g->conn           = NULL;
     g->nodes.reg = g->nodes.unreg = g->nodes.unreg_tail = NULL;
     g->nodes.unreg_count = 0;
     g->active_conn    = 0;
 
+    for (i = 0; i < MAX_LISTEN_SOCKETS; i++)
+	g->listenfd[i] = -1;
+
     argc--;
     argv++;
     while (argc > 0) {
@@ -208,6 +213,11 @@ int main(int argc, char** argv)
 	    else
 		usage(g);
 	    epmd_cleanup_exit(g,0);
+	} else if (strcmp(argv[0], "-address") == 0) {
+	    if (argc == 1)
+	      usage(g);
+	    g->addresses = argv[1];
+	    argv += 2; argc -= 2;
 	} else if (strcmp(argv[0], "-port") == 0) {
 	    if ((argc == 1) ||
 		((g->port = atoi(argv[1])) == 0))
@@ -252,13 +262,10 @@ int main(int argc, char** argv)
     /*
      * max_conn must not be greater than FD_SETSIZE.
      * (at least QNX crashes)
-     *
-     * More correctly, it must be FD_SETSIZE - 1, beacuse the
-     * listen FD is stored outside the connection array.
      */
   
     if (g->max_conn > FD_SETSIZE) {
-      g->max_conn = FD_SETSIZE - 1;
+      g->max_conn = FD_SETSIZE;
     }
 
     if (g->is_daemon)  {
@@ -393,11 +400,14 @@ static void run_daemon(EpmdVars *g)
 
 static void usage(EpmdVars *g)
 {
-    fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-port No] [-daemon]\n");
-    fprintf(stderr, "            [-relaxed_command_check]\n");
+    fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-address List]\n");
+    fprintf(stderr, "            [-port No] [-daemon] [-relaxed_command_check]\n");
     fprintf(stderr, "       epmd [-d|-debug] [-port No] [-names|-kill|-stop name]\n\n");
     fprintf(stderr, "See the Erlang epmd manual page for info about the usage.\n\n");
     fprintf(stderr, "Regular options\n");
+    fprintf(stderr, "    -address List\n");
+    fprintf(stderr, "        Let epmd listen only on the comma-separated list of IP\n");
+    fprintf(stderr, "        addresses (and on the loopback interface).\n");
     fprintf(stderr, "    -port No\n");
     fprintf(stderr, "        Let epmd listen to another port than default %d\n",
 	    EPMD_PORT_NO);
@@ -433,7 +443,7 @@ static void usage(EpmdVars *g)
     fprintf(stderr, "        List names registered with the currently "
 	    "running epmd\n");
     fprintf(stderr, "    -kill\n");
-    fprintf(stderr, "        Kill the currently runniing epmd\n");
+    fprintf(stderr, "        Kill the currently running epmd\n");
     fprintf(stderr, "        (only allowed if -names show empty database or\n");
     fprintf(stderr, "        -relaxed_command_check was given when epmd was started).\n");
     fprintf(stderr, "    -stop Name\n");
@@ -487,8 +497,8 @@ static void dbg_gen_printf(int onsyslog,int perr,int from_level,
 		    (int) strlen(timestr)-1, timestr);
       len = strlen(buf);
       erts_vsnprintf(buf + len, DEBUG_BUFFER_SIZE - len, format, args);
-      if (perr == 1)
-	perror(buf);
+      if (perr != 0)
+	fprintf(stderr,"%s: %s\r\n",buf,strerror(perr));
       else
 	fprintf(stderr,"%s\r\n",buf);
     }
@@ -499,7 +509,7 @@ void dbg_perror(EpmdVars *g,const char *format,...)
 {
   va_list args;
   va_start(args, format);
-  dbg_gen_printf(1,1,0,g,format,args);
+  dbg_gen_printf(1,errno,0,g,format,args);
   va_end(args);
 }
 
@@ -555,8 +565,9 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval)
 	      epmd_conn_close(g,&g->conn[i]);
       free(g->conn);
   }
-  if(g->listenfd >= 0)
-      close(g->listenfd);
+  for(i=0; i < MAX_LISTEN_SOCKETS; i++)
+      if(g->listenfd[i] >= 0)
+          close(g->listenfd[i]);
   free_all_nodes(g);
   if(g->argv){
       for(i=0; g->argv[i] != NULL; ++i)
@@ -568,6 +579,10 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval)
   exit(exitval);
 }
 
+static char* get_addresses(void)
+{
+    return getenv("ERL_EPMD_ADDRESS");
+}
 static int get_port_no(void)
 {
     char* port_str = getenv("ERL_EPMD_PORT");
diff --git a/erts/epmd/src/epmd_cli.c b/erts/epmd/src/epmd_cli.c
index 7c60ba0420..ac55ba6bb6 100644
--- a/erts/epmd/src/epmd_cli.c
+++ b/erts/epmd/src/epmd_cli.c
@@ -137,7 +137,7 @@ static int conn_to_epmd(EpmdVars *g)
 
     { /* store port number in unsigned short */
       unsigned short sport = g->port;
-      SET_ADDR_LOOPBACK(address, FAMILY, sport);
+      SET_ADDR(address, EPMD_ADDR_LOOPBACK, sport);
     }
 
     if (connect(connect_sock, (struct sockaddr*)&address, sizeof address) < 0) 
diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h
index c2558d52a1..2a0de4df9c 100644
--- a/erts/epmd/src/epmd_int.h
+++ b/erts/epmd/src/epmd_int.h
@@ -168,42 +168,40 @@
 #if defined(HAVE_IN6) && defined(AF_INET6) && defined(EPMD6)
 
 #define EPMD_SOCKADDR_IN sockaddr_in6
-#define FAMILY      AF_INET6
-
-#define SET_ADDR_LOOPBACK(addr, af, port) do { \
-    memset((char*)&(addr), 0, sizeof(addr)); \
-    (addr).sin6_family = (af); \
-    (addr).sin6_flowinfo = 0; \
-    (addr).sin6_addr = in6addr_loopback; \
-    (addr).sin6_port = htons(port); \
+#define EPMD_IN_ADDR in6_addr
+#define EPMD_S_ADDR s6_addr
+#define EPMD_ADDR_LOOPBACK in6addr_loopback.s6_addr
+#define EPMD_ADDR_ANY in6addr_any.s6_addr
+#define FAMILY AF_INET6
+
+#define SET_ADDR(dst, addr, port) do { \
+    memset((char*)&(dst), 0, sizeof(dst)); \
+    memcpy((char*)&(dst).sin6_addr.s6_addr, (char*)&(addr), 16); \
+    (dst).sin6_family = AF_INET6; \
+    (dst).sin6_flowinfo = 0; \
+    (dst).sin6_port = htons(port); \
  } while(0)
 
-#define SET_ADDR_ANY(addr, af, port) do { \
-    memset((char*)&(addr), 0, sizeof(addr)); \
-    (addr).sin6_family = (af); \
-    (addr).sin6_flowinfo = 0; \
-    (addr).sin6_addr = in6addr_any; \
-    (addr).sin6_port = htons(port); \
- } while(0)
+#define IS_ADDR_LOOPBACK(addr) \
+    (memcmp((addr).s6_addr, in6addr_loopback.s6_addr, 16) == 0)
 
 #else /* Not IP v6 */
 
 #define EPMD_SOCKADDR_IN sockaddr_in
-#define FAMILY      AF_INET
-
-#define SET_ADDR_LOOPBACK(addr, af, port) do { \
-    memset((char*)&(addr), 0, sizeof(addr)); \
-    (addr).sin_family = (af); \
-    (addr).sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
-    (addr).sin_port = htons(port); \
+#define EPMD_IN_ADDR in_addr
+#define EPMD_S_ADDR s_addr
+#define EPMD_ADDR_LOOPBACK htonl(INADDR_LOOPBACK)
+#define EPMD_ADDR_ANY htonl(INADDR_ANY)
+#define FAMILY AF_INET
+
+#define SET_ADDR(dst, addr, port) do { \
+    memset((char*)&(dst), 0, sizeof(dst)); \
+    (dst).sin_family = AF_INET; \
+    (dst).sin_addr.s_addr = (addr); \
+    (dst).sin_port = htons(port); \
  } while(0)
 
-#define SET_ADDR_ANY(addr, af, port) do { \
-    memset((char*)&(addr), 0, sizeof(addr)); \
-    (addr).sin_family = (af); \
-    (addr).sin_addr.s_addr = htonl(INADDR_ANY); \
-    (addr).sin_port = htons(port); \
- } while(0)
+#define IS_ADDR_LOOPBACK(addr) ((addr).s_addr == htonl(INADDR_LOOPBACK))
 
 #endif /* Not IP v6 */
 
@@ -231,6 +229,8 @@
 /* Maximum length of a node name == atom name */
 #define MAXSYMLEN 255
 
+#define MAX_LISTEN_SOCKETS 16
+
 #define INBUF_SIZE 1024
 #define OUTBUF_SIZE 1024
 
@@ -299,7 +299,8 @@ typedef struct {
   Connection *conn;
   Nodes nodes;
   fd_set orig_read_mask;
-  int listenfd;
+  int listenfd[MAX_LISTEN_SOCKETS];
+  char *addresses;
   char **argv;
 } EpmdVars;
 
diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c
index 3499ab2934..4d9b454f97 100644
--- a/erts/epmd/src/epmd_srv.c
+++ b/erts/epmd/src/epmd_srv.c
@@ -24,6 +24,10 @@
 #include "epmd.h"     /* Renamed from 'epmd_r4.h' */
 #include "epmd_int.h"
 
+#ifndef INADDR_NONE
+#  define INADDR_NONE 0xffffffff
+#endif
+
 /*
  *  
  *  This server is a local name server for Erlang nodes. Erlang nodes can
@@ -79,91 +83,157 @@ static void print_names(EpmdVars*);
 
 void run(EpmdVars *g)
 {
-  int listensock;
+  struct EPMD_SOCKADDR_IN iserv_addr[MAX_LISTEN_SOCKETS];
+  int listensock[MAX_LISTEN_SOCKETS];
+  int num_sockets;
   int i;
   int opt;
-  struct EPMD_SOCKADDR_IN iserv_addr;
+  unsigned short sport = g->port;
 
   node_init(g);
   g->conn = conn_init(g);
 
   dbg_printf(g,2,"try to initiate listening port %d", g->port);
-  
-  if ((listensock = socket(FAMILY,SOCK_STREAM,0)) < 0) {
-    dbg_perror(g,"error opening stream socket");
-    epmd_cleanup_exit(g,1);
-  }
-  g->listenfd = listensock;
+
+  if (g->addresses != NULL)
+    {
+      char *tmp;
+      char *token;
+      int loopback_ok = 0;
+
+      if ((tmp = (char *)malloc(strlen(g->addresses) + 1)) == NULL)
+	{
+	  dbg_perror(g,"cannot allocate memory");
+	  epmd_cleanup_exit(g,1);
+	}
+      strcpy(tmp,g->addresses);
+
+      for(token = strtok(tmp,", "), num_sockets = 0;
+	  token != NULL;
+	  token = strtok(NULL,", "), num_sockets++)
+	{
+	  struct EPMD_IN_ADDR addr;
+#ifdef HAVE_INET_PTON
+	  int ret;
+
+	  if ((ret = inet_pton(FAMILY,token,&addr)) == -1)
+	    {
+	      dbg_perror(g,"cannot convert IP address to network format");
+	      epmd_cleanup_exit(g,1);
+	    }
+	  else if (ret == 0)
+#elif !defined(EPMD6)
+	  if ((addr.EPMD_S_ADDR = inet_addr(token)) == INADDR_NONE)
+#endif
+	    {
+	      dbg_tty_printf(g,0,"cannot parse IP address \"%s\"",token);
+	      epmd_cleanup_exit(g,1);
+	    }
+
+	  if (IS_ADDR_LOOPBACK(addr))
+	    loopback_ok = 1;
+
+	  if (num_sockets - loopback_ok == MAX_LISTEN_SOCKETS - 1)
+	    {
+	      dbg_tty_printf(g,0,"cannot listen on more than %d IP addresses",
+			     MAX_LISTEN_SOCKETS);
+	      epmd_cleanup_exit(g,1);
+	    }
+
+	  SET_ADDR(iserv_addr[num_sockets],addr.EPMD_S_ADDR,sport);
+	}
+
+      free(tmp);
+
+      if (!loopback_ok)
+	{
+	  SET_ADDR(iserv_addr[num_sockets],EPMD_ADDR_LOOPBACK,sport);
+	  num_sockets++;
+	}
+    }
+  else
+    {
+      SET_ADDR(iserv_addr[0],EPMD_ADDR_ANY,sport);
+      num_sockets = 1;
+    }
+
+#if !defined(__WIN32__)
+  /* We ignore the SIGPIPE signal that is raised when we call write
+     twice on a socket closed by the other end. */
+  signal(SIGPIPE, SIG_IGN);
+#endif
 
   /*
    * Initialize number of active file descriptors.
    * Stdin, stdout, and stderr are still open.
-   * One for the listen socket.
    */
-  g->active_conn = 3+1;
+  g->active_conn = 3 + num_sockets;
+  g->max_conn -= num_sockets;
+
+  FD_ZERO(&g->orig_read_mask);
+
+  for (i = 0; i < num_sockets; i++)
+    {
+      if ((listensock[i] = socket(FAMILY,SOCK_STREAM,0)) < 0)
+	{
+	  dbg_perror(g,"error opening stream socket");
+	  epmd_cleanup_exit(g,1);
+	}
+      g->listenfd[i] = listensock[i];
   
-  /*
-   * Note that we must not enable the SO_REUSEADDR on Windows,
-   * because addresses will be reused even if they are still in use.
-   */
+      /*
+       * Note that we must not enable the SO_REUSEADDR on Windows,
+       * because addresses will be reused even if they are still in use.
+       */
   
 #if !defined(__WIN32__)
-  /* We ignore the SIGPIPE signal that is raised when we call write
-     twice on a socket closed by the other end. */
-  signal(SIGPIPE, SIG_IGN);
-
-  opt = 1;			/* Set this option */
-  if (setsockopt(listensock,SOL_SOCKET,SO_REUSEADDR,(char* ) &opt,
-		 sizeof(opt)) <0) {
-    dbg_perror(g,"can't set sockopt");
-    epmd_cleanup_exit(g,1);
-  }
+      opt = 1;
+      if (setsockopt(listensock[i],SOL_SOCKET,SO_REUSEADDR,(char* ) &opt,
+		     sizeof(opt)) <0)
+	{
+	  dbg_perror(g,"can't set sockopt");
+	  epmd_cleanup_exit(g,1);
+	}
 #endif
   
-  /* In rare cases select returns because there is someone
-     to accept but the request is withdrawn before the
-     accept function is called. We set the listen socket
-     to be non blocking to prevent us from being hanging
-     in accept() waiting for the next request. */
+      /* In rare cases select returns because there is someone
+	 to accept but the request is withdrawn before the
+	 accept function is called. We set the listen socket
+	 to be non blocking to prevent us from being hanging
+	 in accept() waiting for the next request. */
 #if (defined(__WIN32__) || defined(NO_FCNTL))
-  opt = 1;
-  if (ioctl(listensock, FIONBIO, &opt) != 0) /* Gives warning in VxWorks */
+      opt = 1;
+      /* Gives warning in VxWorks */
+      if (ioctl(listensock[i], FIONBIO, &opt) != 0)
 #else
-  opt = fcntl(listensock, F_GETFL, 0);
-  if (fcntl(listensock, F_SETFL, opt | O_NONBLOCK) == -1)
+      opt = fcntl(listensock[i], F_GETFL, 0);
+      if (fcntl(listensock[i], F_SETFL, opt | O_NONBLOCK) == -1)
 #endif /* __WIN32__ || VXWORKS */
-    dbg_perror(g,"failed to set non-blocking mode of listening socket %d",
-	       listensock);
+	dbg_perror(g,"failed to set non-blocking mode of listening socket %d",
+		   listensock[i]);
 
-  { /* store port number in unsigned short */
-    unsigned short sport = g->port;
-    SET_ADDR_ANY(iserv_addr, FAMILY, sport);
-  }
-  
-  if(bind(listensock,(struct sockaddr*) &iserv_addr, sizeof(iserv_addr)) < 0 )
-    {
-      if (errno == EADDRINUSE)
+      if (bind(listensock[i], (struct sockaddr*) &iserv_addr[i],
+	  sizeof(iserv_addr[i])) < 0)
 	{
-	  dbg_tty_printf(g,1,"there is already a epmd running at port %d",
-			 g->port);
-	  epmd_cleanup_exit(g,0);
-	}
-      else
-	{
-	  dbg_perror(g,"failed to bind socket");
-	  epmd_cleanup_exit(g,1);
+	  if (errno == EADDRINUSE)
+	    {
+	      dbg_tty_printf(g,1,"there is already a epmd running at port %d",
+			     g->port);
+	      epmd_cleanup_exit(g,0);
+	    }
+	  else
+	    {
+	      dbg_perror(g,"failed to bind socket");
+	      epmd_cleanup_exit(g,1);
+	    }
 	}
-    }
-
-  dbg_printf(g,2,"starting");
 
-  if(listen(listensock, SOMAXCONN) < 0) {
-      dbg_perror(g,"failed to listen on socket");
-      epmd_cleanup_exit(g,1);
-  }
-
-  FD_ZERO(&g->orig_read_mask);
-  FD_SET(listensock,&g->orig_read_mask);
+      if(listen(listensock[i], SOMAXCONN) < 0) {
+          dbg_perror(g,"failed to listen on socket");
+          epmd_cleanup_exit(g,1);
+      }
+      FD_SET(listensock[i],&g->orig_read_mask);
+    }
 
   dbg_tty_printf(g,2,"entering the main select() loop");
 
@@ -200,17 +270,18 @@ void run(EpmdVars *g)
 	  sleep(g->delay_accept);
 	}
 
-	if (FD_ISSET(listensock,&read_mask)) {
-	  if (do_accept(g, listensock) && g->active_conn < g->max_conn) {
-	    /*
-	     * The accept() succeeded, and we have at least one file
-	     * descriptor still free, which means that another accept()
-	     * could succeed. Go do do another select(), in case there
-	     * are more incoming connections waiting to be accepted.
-	     */
-	    goto select_again;
+	for (i = 0; i < num_sockets; i++)
+	  if (FD_ISSET(listensock[i],&read_mask)) {
+	    if (do_accept(g, listensock[i]) && g->active_conn < g->max_conn) {
+	      /*
+	       * The accept() succeeded, and we have at least one file
+	       * descriptor still free, which means that another accept()
+	       * could succeed. Go do do another select(), in case there
+	       * are more incoming connections waiting to be accepted.
+	       */
+	      goto select_again;
+	    }
 	  }
-	}
 	  
 	/* Check all open streams marked by select for data or a
 	   close.  We also close all open sockets except ALIVE
@@ -738,6 +809,7 @@ static int conn_open(EpmdVars *g,int fd)
   for (i = 0; i < g->max_conn; i++) {
     if (g->conn[i].open == EPMD_FALSE) {
       struct sockaddr_in si;
+      struct sockaddr_in di;
 #ifdef HAVE_SOCKLEN_T
       socklen_t st;
 #else
@@ -758,12 +830,16 @@ static int conn_open(EpmdVars *g,int fd)
       /* Determine if connection is from localhost */
       if (getpeername(s->fd,(struct sockaddr*) &si,&st) ||
 	  st < sizeof(si)) {
-	  /* Failure to get peername is regarder as non local host */
+	  /* Failure to get peername is regarded as non local host */
 	  s->local_peer = EPMD_FALSE;
       } else {
+	  /* Only 127.x.x.x and connections from the host's IP address
+	     allowed, no false positives */
 	  s->local_peer =
-	      ((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) ==
-	       0x7F000000U); /* Only 127.x.x.x allowed, no false positives */
+	      (((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) ==
+	       0x7F000000U) ||
+	       (getsockname(s->fd,(struct sockaddr*) &di,&st) ?
+	       EPMD_FALSE : si.sin_addr.s_addr == di.sin_addr.s_addr));
       }
       dbg_tty_printf(g,2,(s->local_peer) ? "Local peer connected" :
 		     "Non-local peer connected");
diff --git a/erts/epmd/test/Makefile b/erts/epmd/test/Makefile
index 13dad09ae3..54688fd90b 100644
--- a/erts/epmd/test/Makefile
+++ b/erts/epmd/test/Makefile
@@ -74,7 +74,7 @@ release_tests_spec: opt
 	$(INSTALL_DIR) $(RELEPMDDIR)
 	$(INSTALL_DATA) epmd.spec epmd.spec.vxworks $(ERL_FILES) \
 		$(EMAKEFILE) $(RELEPMDDIR)
-	chmod -f -R u+w $(RELEPMDDIR)
+	chmod -R u+w $(RELEPMDDIR)
 
 release_docs_spec:
 
diff --git a/erts/epmd/test/epmd_SUITE.erl b/erts/epmd/test/epmd_SUITE.erl
index 72c890503d..6889ec0b34 100644
--- a/erts/epmd/test/epmd_SUITE.erl
+++ b/erts/epmd/test/epmd_SUITE.erl
@@ -780,42 +780,43 @@ no_nonlocal_register(suite) ->
 no_nonlocal_register(doc) ->
     ["Ensure that we cannot register throug a nonlocal connection"];
 no_nonlocal_register(Config) when is_list(Config) ->
+    ?line case {os:find_executable("ssh"),ct:get_config(ssh_proxy_host)} of
+	      {SSH,Name} when is_list(Name), is_list(SSH) ->
+		  do_no_nonlocal_register(Config,Name);
+	      {false,_} ->
+		  {skip, "No ssh command found to create proxy"};
+	      _ ->
+		  {skip, "No ssh_proxy_host configured in ts.config"}
+	  end.
+do_no_nonlocal_register(Config,SSHHost) when is_list(Config) ->
     ?line ok = epmdrun(),
-    ?line {ok,Ifs} = inet:getiflist(),
-    ?line Addr0 = [ inet:ifget(I, [addr]) || I <- Ifs ],
-    ?line Addr1 = [ A || {ok,[{addr,A}]} <- Addr0],
-    ?line Addr = lists:filter(fun({127,_,_,_}) ->
-				      false;
-				 (_)  ->
-				      true
-			      end,Addr1),
-    %% Now we should have all non loopback interface addresses,
-    %% none should accept a alive2 registration.
-    ?line Res = lists:map(fun(Ad={A1,A2,A3,A4}) ->
-				  try
-				      Name = "gurka_"++
-				             integer_to_list(A1)++"_"++
-				             integer_to_list(A2)++"_"++
-				             integer_to_list(A3)++"_"++
-				             integer_to_list(A4),
-				      Bname = list_to_binary(Name),
-				      NameS = byte_size(Bname),
-				      ?line Bin= <<$x:8,4747:16,$M:8,0:8,5:16,
-						  5:16,NameS:16,Bname/binary,
-						  0:16>>,
-				      ?line S = size(Bin),
-				      {ok, E} = connect(Ad),
-				      gen_tcp:send(E,[<<S:16>>,Bin]),
-				      closed = recv(E,1),
-				      gen_tcp:close(E),
-				      true
-				  catch
-				      _:_ ->
-					  false
-				  end
-		    end, Addr),
-    erlang:display(Res),
-    ?line true = alltrue(Res),
+    ?line ProxyPort = proxy_port(),
+    ?line ok = ssh_proxy(SSHHost,ProxyPort),
+    Res = try
+	      ?line Name = "gurka_"
+	      %++
+	      %integer_to_list(A1)++"_"++
+	      %integer_to_list(A2)++"_"++
+	      %integer_to_list(A3)++"_"++
+	      %integer_to_list(A4)
+	      ,
+	      ?line Bname = list_to_binary(Name),
+	      ?line NameS = byte_size(Bname),
+	      ?line Bin= <<$x:8,4747:16,$M:8,0:8,5:16,
+			  5:16,NameS:16,Bname/binary,
+			  0:16>>,
+	      ?line S = size(Bin),
+	      ?line {ok, E} = connect("localhost",ProxyPort,passive),
+	      ?line gen_tcp:send(E,[<<S:16>>,Bin]),
+	      ?line closed = recv(E,1),
+	      ?line gen_tcp:close(E),
+	      true
+	  catch
+	      _:_ ->
+		  false
+	  end,
+    %erlang:display(Res),
+    true = Res,
     ok.
 
 no_nonlocal_kill(suite) ->
@@ -823,35 +824,34 @@ no_nonlocal_kill(suite) ->
 no_nonlocal_kill(doc) ->
     ["Ensure that we cannot kill through nonlocal connection"];
 no_nonlocal_kill(Config) when is_list(Config) ->
+    ?line case {os:find_executable("ssh"),ct:get_config(ssh_proxy_host)} of
+	      {SSH,Name} when is_list(Name), is_list(SSH) ->
+		  do_no_nonlocal_kill(Config,Name);
+	      {false,_} ->
+		  {skip, "No ssh command found to create proxy"};
+	      _ ->
+		  {skip, "No ssh_proxy_host configured in ts.config"}
+	  end.
+do_no_nonlocal_kill(Config,SSHHost) when is_list(Config) ->
     ?line ok = epmdrun(),
-    ?line {ok,Ifs} = inet:getiflist(),
-    ?line Addr0 = [ inet:ifget(I, [addr]) || I <- Ifs ],
-    ?line Addr1 = [ A || {ok,[{addr,A}]} <- Addr0],
-    ?line Addr = lists:filter(fun({127,_,_,_}) ->
-				      false;
-				 (_)  ->
-				      true
-			      end,Addr1),
-    %% Now we should have all non loopback interface addresses,
-    %% none should accept a alive2 registration.
-    ?line Res = lists:map(fun(Ad) ->
-				  try
-				      {ok, E} = connect(Ad),
-				      M = [?EPMD_KILL_REQ],
-				      send(E, [size16(M), M]),
-				      closed = recv(E,2),
-				      gen_tcp:close(E),
-				      sleep(?MEDIUM_PAUSE),
-				      {ok, E2} = connect(Ad),
-				      gen_tcp:close(E2),
-				      true
-				  catch
-				      _:_ ->
-					  false
-				  end
-		    end, Addr),
-    erlang:display(Res),
-    ?line true = alltrue(Res),
+    ?line ProxyPort = proxy_port(),
+    ?line ok = ssh_proxy(SSHHost,ProxyPort),
+    Res = try
+	      {ok, E} = connect("localhost",ProxyPort,passive),
+	      M = [?EPMD_KILL_REQ],
+	      send(E, [size16(M), M]),
+	      closed = recv(E,2),
+	      gen_tcp:close(E),
+	      sleep(?MEDIUM_PAUSE),
+	      {ok, E2} = connect("localhost",ProxyPort,passive),
+	      gen_tcp:close(E2),
+	      true
+	  catch
+	      _:_ ->
+		  false
+	  end,
+    %erlang:display(Res),
+    true = Res,
     ok.
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 no_live_killing(doc) ->
@@ -896,6 +896,19 @@ cleanup() ->
 	    true
     end.
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Start an ssh channel to simulate remote access
+
+proxy_port() ->
+    ?PORT+1.
+
+ssh_proxy(SSHHost,ProxyPort) ->
+    ?line Host = lists:nth(2,string:tokens(atom_to_list(node()),"@")),
+    % Requires proxy to be a unix host with the command 'read' accessible
+    ?line osrun("ssh -L "++integer_to_list(ProxyPort)++":"++Host++":"
+		++integer_to_list(?PORT)++" "++SSHHost++" read").
+    
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Normal debug start of epmd
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 60b3af7db7..7e04724f5a 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -394,6 +394,7 @@ int main(int argc, char **argv)
     int print_args_exit = 0;
     int print_qouted_cmd_exit = 0;
     erts_cpu_info_t *cpuinfo = NULL;
+    char* emu_name;
 
 #ifdef __WIN32__
     this_module_handle = module;
@@ -566,6 +567,7 @@ int main(int argc, char **argv)
 	    usage("+MYm");
     }
     emu = add_extra_suffixes(emu, emu_type);
+    emu_name = strsave(emu);
     erts_snprintf(tmpStr, sizeof(tmpStr), "%s" DIRSEP "%s" BINARY_EXT, bindir, emu);
     emu = strsave(tmpStr);
 
@@ -682,6 +684,9 @@ int main(int argc, char **argv)
 			verbose = 1;
 		    } else if (strcmp(argv[i], "-emu_args_exit") == 0) {
 			print_args_exit = 1;
+		    } else if (strcmp(argv[i], "-emu_name_exit") == 0) {
+			printf("%s\n", emu_name);
+			exit(0);
 		    } else if (strcmp(argv[i], "-emu_qouted_cmd_exit") == 0) {
 			print_qouted_cmd_exit = 1;
 		    } else if (strcmp(argv[i], "-env") == 0) { /* -env VARNAME VARVALUE */
@@ -1970,6 +1975,11 @@ initial_argv_massage(int *argc, char ***argv)
      */
 
     vix = 0;
+
+    av = build_args_from_env("ERL_" OTP_SYSTEM_VERSION "_FLAGS");
+    if (av)
+	avv[vix++].argv = av;
+
     av = build_args_from_env("ERL_AFLAGS");
     if (av)
 	avv[vix++].argv = av;
@@ -1984,10 +1994,6 @@ initial_argv_massage(int *argc, char ***argv)
     if (av)
 	avv[vix++].argv = av;
 
-    av = build_args_from_env("ERL_" OTP_SYSTEM_VERSION "_FLAGS");
-    if (av)
-	avv[vix++].argv = av;
-
     av = build_args_from_env("ERL_ZFLAGS");
     if (av)
 	avv[vix++].argv = av;
diff --git a/erts/etc/common/heart.c b/erts/etc/common/heart.c
index 778b3569c7..7a5746e630 100644
--- a/erts/etc/common/heart.c
+++ b/erts/etc/common/heart.c
@@ -727,16 +727,16 @@ static int
 heart_cmd_reply(int fd, char *s)
 {
   struct msg m;
-  int len = strlen(s) + 1;	/* Include \0 */
+  int len = strlen(s);
 
   /* if s >= MSG_BODY_SIZE, return a write
    * failure immediately.
    */
-  if (len > sizeof(m.fill))
+  if (len >= sizeof(m.fill))
       return -1;
 
   m.op = HEART_CMD;
-  m.len = htons(len + 2);	/* Include Op */
+  m.len = htons(len + 1);	/* Include Op */
   strcpy((char*)m.fill, s);
 
   return write_message(fd, &m);
diff --git a/erts/etc/common/inet_gethost.c b/erts/etc/common/inet_gethost.c
index 8bd9368aa1..77bfd5e2bc 100644
--- a/erts/etc/common/inet_gethost.c
+++ b/erts/etc/common/inet_gethost.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -1297,7 +1297,7 @@ static int read_request(AddrByte **buff, size_t *buff_size)
     }
 
     if (siz > *buff_size) {
-	if (buff_size == 0) {
+	if (*buff_size == 0) {
 	    *buff = ALLOC((*buff_size = siz));
 	} else {
 	    *buff = REALLOC(*buff, (*buff_size = siz));
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index 0355f2629f..0b2d6512ea 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -62,13 +62,21 @@ cxargs_add() {
     done
 }
 
+eeargs=
+eeargs_add() {
+    while [ $# -gt 0 ]; do
+	cargs="$cargs $1"
+	eeargs="$eeargs $1"
+	shift
+    done
+}
+
 core=
 
 GDB=
 GDBBP=
 GDBARGS=
 TYPE=
-EMU_TYPE=
 debug=
 run_valgrind=no
 
@@ -127,34 +135,37 @@ while [ $# -gt 0 ]; do
 	    ;;
 	"-smp")
 	    shift
-	    cargs="$cargs -smp"
-	    EMU_TYPE=.smp
+	    if [ $# -le 0 ]; then
+		eeargs_add -smp
+	    else
+		case $1 in
+		    disable)
+			shift
+			eeargs_add -smpdisable
+			;;
+		    enable)
+			shift
+			eeargs_add -smp
+			;;
+		    *)
+			eeargs_add -smp
+		esac
+	    fi
+	    ;;
+	"-smpdisable")
+	    shift
+	    eeargs_add -smpdisable
 	    ;;
 	"-lcnt")
 	    shift
 	    cargs="$cargs -lcnt"
 	    TYPE=.lcnt
 	    ;;
-	"-frag")
-	    shift
-	    cargs="$cargs -frag"
-	    EMU_TYPE=.frag
-	    ;;
-	"-smp_frag")
-	    shift
-	    cargs="$cargs -smp_frag"
-	    EMU_TYPE=.smp_frag
-	    ;;
 	"-gprof")
 	    shift
 	    cargs="$cargs -gprof"
 	    TYPE=.gprof
 	    ;;
-	"-hybrid")
-	    shift
-	    cargs="$cargs -hybrid"
-	    EMU_TYPE=.hybrid
-	    ;;
 	"-debug")
 	    shift
 	    cargs="$cargs -debug"
@@ -180,11 +191,6 @@ while [ $# -gt 0 ]; do
 #	    shift
 #	    GDB=xxgdb
 #	    ;;
-	"-shared")
-	    shift
-	    cargs="$cargs -shared"
-	    TYPE=.shared
-	    ;;
 	"-purify")
 	    shift
 	    cargs="$cargs -purify"
@@ -222,7 +228,9 @@ PATH=$BINDIR:$ROOTDIR/bin:$PATH
 EXEC=$BINDIR/erlexec
 
 PROGNAME="$PROGNAME $cargs"
-EMU=$EMU$TYPE$EMU_TYPE
+EMU="$EMU$TYPE"
+EMU_NAME=`$EXEC -emu_name_exit $eeargs`
+
 if [ $run_valgrind != yes ]; then
     xargs="$xargs -pz $PRELOADED --"
 fi
@@ -248,9 +256,9 @@ if [ "x$GDB" = "x" ]; then
 	    valgrind_log=
 	else
 	    if [ $valmajor -gt 2 -a $valminor -gt 4 ]; then
-		valgrind_log="$log_file_prefix$VALGRIND_LOG_DIR/$VALGRIND_LOGFILE_PREFIX$VALGRIND_LOGFILE_INFIX$EMU.log.$$"
+		valgrind_log="$log_file_prefix$VALGRIND_LOG_DIR/$VALGRIND_LOGFILE_PREFIX$VALGRIND_LOGFILE_INFIX$EMU_NAME.log.$$"
 	    else
-		valgrind_log="$log_file_prefix$VALGRIND_LOG_DIR/$VALGRIND_LOGFILE_PREFIX$VALGRIND_LOGFILE_INFIX$EMU.log"
+		valgrind_log="$log_file_prefix$VALGRIND_LOG_DIR/$VALGRIND_LOGFILE_PREFIX$VALGRIND_LOGFILE_INFIX$EMU_NAME.log"
 	    fi
 	fi
 	if [ "x$VALGRIND_MISC_FLAGS" = "x" ]; then
@@ -263,9 +271,9 @@ if [ "x$GDB" = "x" ]; then
 	early_beam_args=`echo $beam_args | sed "s|^\(.*-progname\).*$|\1|g"`
 	late_beam_args=`echo $beam_args | sed "s|^$pre_beam_args.*\(-- -home.*\)$|\1|g"`
 	
-	exec valgrind $valgrind_xml $valgrind_log $valgrind_misc_flags $BINDIR/$EMU $emu_xargs $early_beam_args "$PROGNAME" $late_beam_args -pz $PRELOADED
+	exec valgrind $valgrind_xml $valgrind_log $valgrind_misc_flags $BINDIR/$EMU_NAME $emu_xargs $early_beam_args "$PROGNAME" $late_beam_args -pz $PRELOADED
     else
-	exec $EXEC $xargs ${1+"$@"}
+	exec $EXEC $eeargs $xargs ${1+"$@"}
     fi
 else
     if [ "x$EMACS" = "x" ]; then
@@ -300,5 +308,5 @@ else
             (insert-string \"source $ROOTDIR/erts/etc/unix/etp-commands\") \
             (comint-send-input)"
     # Fire up gdb in emacs...
-    exec $EMACS --eval "(progn (gdb \"gdb $GDBARGS$EMU\") $gdbcmd)"
+    exec $EMACS --eval "(progn (gdb \"gdb $GDBARGS$EMU_NAME\") $gdbcmd)"
 fi
diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c
index cadff12c6f..8db8e09bee 100644
--- a/erts/etc/unix/run_erl.c
+++ b/erts/etc/unix/run_erl.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 1996-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -221,6 +221,8 @@ int main(int argc, char **argv)
   char *p, *ptyslave=NULL;
   int i = 1;
   int off_argv;
+  int calculated_pipename = 0;
+  int highest_pipe_num = 0;
 
   program_name = argv[0];
 
@@ -298,10 +300,10 @@ int main(int argc, char **argv)
   if(*pipename && pipename[strlen(pipename)-1] == '/') {
     /* The user wishes us to find a unique pipe name in the specified */
     /* directory */
-    int highest_pipe_num = 0;
     DIR *dirp;
     struct dirent *direntp;
 
+    calculated_pipename = 1;
     dirp = opendir(pipename);
     if(!dirp) {
       ERRNO_ERR1(LOG_ERR,"Can't access pipe directory '%s'.", pipename);
@@ -322,28 +324,37 @@ int main(int argc, char **argv)
 	      PIPE_STUBNAME, highest_pipe_num+1);
   } /* if */
 
-  /* write FIFO - is read FIFO for `to_erl' program */
-  strn_cpy(fifo1, sizeof(fifo1), pipename);
-  strn_cat(fifo1, sizeof(fifo1), ".r");
-  if (create_fifo(fifo1, PERM) < 0) {
-    ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1);
-    exit(1);
-  }
-
-  /* read FIFO - is write FIFO for `to_erl' program */
-  strn_cpy(fifo2, sizeof(fifo2), pipename);
-  strn_cat(fifo2, sizeof(fifo2), ".w");
-
-  /* Check that nobody is running run_erl already */
-  if ((fd = open (fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) {
-    /* Open as client succeeded -- run_erl is already running! */
-    fprintf(stderr, "Erlang already running on pipe %s.\n", pipename);
-    close(fd);
-    exit(1);
-  }
-  if (create_fifo(fifo2, PERM) < 0) { 
-    ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2);
-    exit(1);
+  for(;;) {
+      /* write FIFO - is read FIFO for `to_erl' program */
+      strn_cpy(fifo1, sizeof(fifo1), pipename);
+      strn_cat(fifo1, sizeof(fifo1), ".r");
+      if (create_fifo(fifo1, PERM) < 0) {
+	  ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1);
+	  exit(1);
+      }
+      
+      /* read FIFO - is write FIFO for `to_erl' program */
+      strn_cpy(fifo2, sizeof(fifo2), pipename);
+      strn_cat(fifo2, sizeof(fifo2), ".w");
+      
+      /* Check that nobody is running run_erl already */
+      if ((fd = open (fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) {
+	  /* Open as client succeeded -- run_erl is already running! */
+	  close(fd);
+	  if (calculated_pipename) {
+	      ++highest_pipe_num;
+	      strn_catf(pipename, sizeof(pipename), "%s.%d",
+			PIPE_STUBNAME, highest_pipe_num+1);
+	      continue;
+	  } 
+	  fprintf(stderr, "Erlang already running on pipe %s.\n", pipename);
+	  exit(1);
+      }
+      if (create_fifo(fifo2, PERM) < 0) { 
+	  ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2);
+	  exit(1);
+      }
+      break;
   }
 
   /*
@@ -980,9 +991,7 @@ static int open_pty_master(char **ptyslave)
 static int open_pty_slave(char *name)
 {
   int sfd;
-#ifdef DEBUG
   struct termios tty_rmode;
-#endif
 
   if ((sfd = open(name, O_RDWR, 0)) < 0) {
     return -1;
@@ -1008,6 +1017,25 @@ static int open_pty_slave(char *name)
   }
 #endif
 
+  if (getenv("RUN_ERL_DISABLE_FLOWCNTRL")) {
+    if (tcgetattr(sfd, &tty_rmode) < 0) {
+      fprintf(stderr, "Cannot get terminal's current mode\n");
+      exit(-1);
+    }
+
+    tty_rmode.c_iflag &= ~IXOFF;
+    if (tcsetattr(sfd, TCSANOW, &tty_rmode) < 0) {
+      fprintf(stderr, "Cannot disable terminal's flow control on input\n");
+      exit(-1);
+    }
+
+    tty_rmode.c_iflag &= ~IXON;
+    if (tcsetattr(sfd, TCSANOW, &tty_rmode) < 0) {
+      fprintf(stderr, "Cannot disable terminal's flow control on output\n");
+      exit(-1);
+    }
+  }
+
 #ifdef DEBUG
   if (tcgetattr(sfd, &tty_rmode) < 0) {
     fprintf(stderr, "Cannot get terminals current mode\n");
diff --git a/erts/etc/unix/to_erl.c b/erts/etc/unix/to_erl.c
index 886b301997..11fa3ff4cc 100644
--- a/erts/etc/unix/to_erl.c
+++ b/erts/etc/unix/to_erl.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 1996-2009. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -125,7 +125,7 @@ static void usage(char *pname)
 int main(int argc, char **argv)
 {
     char  FIFO1[FILENAME_MAX], FIFO2[FILENAME_MAX];
-    int i, len, wfd, rfd, result = 0;
+    int i, len, wfd, rfd;
     fd_set readfds;
     char buf[BUFSIZ];
     char pipename[FILENAME_MAX];
@@ -367,7 +367,6 @@ int main(int argc, char **argv)
 	    }
 	    else {
 		fprintf(stderr, "Error in select.\n");
-		result = -1;
 		break;
 	    }
 	}
@@ -398,7 +397,6 @@ int main(int argc, char **argv)
 		close(wfd);
 		if (len < 0) {
 		    fprintf(stderr, "Error in reading from stdin.\n");
-		    result = -1;
 		} else {
 		    fprintf(stderr, "[EOF]\n\r");
 		}
@@ -420,7 +418,6 @@ int main(int argc, char **argv)
 		fprintf(stderr, "Error in writing to FIFO.\n");
 		close(rfd);
 		close(wfd);
-		result = -1;
 		break;
 	    }
 	    STATUS("\" OK\r\n");
@@ -447,7 +444,6 @@ int main(int argc, char **argv)
 		close(wfd);
 		if (len < 0) {
 		    fprintf(stderr, "Error in reading from FIFO.\n");
-		    result = -1;
 		} else
 		    fprintf(stderr, "[End]\n\r");
 		break;
@@ -456,7 +452,6 @@ int main(int argc, char **argv)
 		    if ((len=version_handshake(buf,len,wfd)) < 0) {
 			close(rfd);
 			close(wfd);
-			result = -1;
 			break;
 		    }
 		    if (protocol_ver >= 1) {
@@ -475,7 +470,6 @@ int main(int argc, char **argv)
 		    fprintf(stderr, "Error in writing to terminal.\n");
 		    close(rfd);
 		    close(wfd);
-		    result = -1;
 		    break;
 		}
 		STATUS("\" OK\r\n");
diff --git a/erts/etc/win32/erlsrv/erlsrv_service.c b/erts/etc/win32/erlsrv/erlsrv_service.c
index a58ee862c5..242e2905a9 100644
--- a/erts/etc/win32/erlsrv/erlsrv_service.c
+++ b/erts/etc/win32/erlsrv/erlsrv_service.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 1998-2009. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -523,7 +523,7 @@ static BOOL start_a_service(ServerInfo *srvi){
 		    srvi->keys[WorkDir].data.bytes : NULL,
 		    &start,
 		    &(srvi->info))){
-    sprintf(errbuff,"Could not start erlang service"
+    sprintf(errbuff,"Could not start erlang service "
 	    "with commandline \"%s\".",
 	    service_name,
 	    execbuff
@@ -924,7 +924,7 @@ static VOID WINAPI service_main_loop(DWORD argc, char **argv){
     } else {
       DWORD ecode = NO_ERROR;
       if(success_wait == NO_SUCCESS_WAIT){
-	log_warning("Erlang machine volountarily stopped. "
+	log_warning("Erlang machine voluntarily stopped. "
 		    "The service is not restarted as OnFail "
 		    "is set to ignore.");
       } else {
diff --git a/erts/etc/win32/nsis/dll_version_helper.sh b/erts/etc/win32/nsis/dll_version_helper.sh
index 571ee3e39e..eecd4a72b5 100755
--- a/erts/etc/win32/nsis/dll_version_helper.sh
+++ b/erts/etc/win32/nsis/dll_version_helper.sh
@@ -2,7 +2,7 @@
 # 
 # %CopyrightBegin%
 # 
-# Copyright Ericsson AB 2007-2010. All Rights Reserved.
+# Copyright Ericsson AB 2007-2011. All Rights Reserved.
 # 
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -26,6 +26,7 @@
 # exit 0
 
 cat > hello.c <<EOF
+#include <windows.h>
 #include <stdio.h>
 
 int main(void)
@@ -35,14 +36,74 @@ int main(void)
 }
 
 EOF
-cl /MD hello.c > /dev/null 2>&1
+cl /MD hello.c  > /dev/null 2>&1
 if [ '!' -f hello.exe.manifest ]; then
-    echo "This compiler does not generate manifest files - OK if using mingw" >&2
-    exit 0
+    # Gah - VC 2010 changes the way it handles DLL's and manifests... Again...
+    # need another way of getting the version
+    DLLNAME=`dumpbin.exe /imports hello.exe | egrep MSVCR.*dll`
+    DLLNAME=`echo $DLLNAME`
+    cat > helper.c <<EOF
+#include <windows.h>
+#include <stdio.h>
+
+#define REQ_MODULE "$DLLNAME"
+
+int main(void)
+{
+  DWORD dummy;
+  DWORD versize;
+  int i,n;
+  unsigned char *versinfo;
+  char buff[100];
+
+  char *vs_verinfo;
+  unsigned int vs_ver_size;
+  
+  struct LANGANDCODEPAGE {
+    WORD language;
+    WORD codepage;
+  } *translate;
+
+  unsigned int tr_size;
+  
+  if (!(versize = GetFileVersionInfoSize(REQ_MODULE,&dummy))) {
+    fprintf(stderr,"No version info size in %s!\n",REQ_MODULE);
+    exit(1);
+  }
+  versinfo=malloc(versize);
+  if (!GetFileVersionInfo(REQ_MODULE,dummy,versize,versinfo)) {
+    fprintf(stderr,"No version info in %s!\n",REQ_MODULE);
+    exit(2);
+  }
+  if (!VerQueryValue(versinfo,"\\\\VarFileInfo\\\\Translation",&translate,&tr_size)) {
+    fprintf(stderr,"No translation info in %s!\n",REQ_MODULE);
+    exit(3);
+  }
+  n = tr_size/sizeof(translate);
+  for(i=0; i < n; ++i) {
+    sprintf(buff,"\\\\StringFileInfo\\\\%04x%04x\\\\FileVersion",
+	    translate[i].language,translate[i].codepage);
+    if (VerQueryValue(versinfo,buff,&vs_verinfo,&vs_ver_size)) {
+      printf("%s\n",(char *) vs_verinfo);
+      return 0;
+    }
+  } 
+  fprintf(stderr,"Failed to find file version of %s\n",REQ_MODULE);
+  return 0;
+}
+EOF
+    cl /MD helper.c version.lib > /dev/null 2>&1
+    if [ '!' -f helper.exe ]; then
+	echo "Failed to build helper program." >&2
+	exit 1
+    fi
+    NAME=$DLLNAME
+    VERSION=`./helper`
+else
+    VERSION=`grep '<assemblyIdentity' hello.exe.manifest | sed 's,.*version=.\([0-9\.]*\).*,\1,g' | grep -v '<'`
+    NAME=`grep '<assemblyIdentity' hello.exe.manifest | sed 's,.*name=.[A-Za-z\.]*\([0-9]*\).*,msvcr\1.dll,g' | grep -v '<'`
 fi
-VERSION=`grep '<assemblyIdentity' hello.exe.manifest | sed 's,.*version=.\([0-9\.]*\).*,\1,g' | grep -v '<'`
-NAME=`grep '<assemblyIdentity' hello.exe.manifest | sed 's,.*name=.[A-Za-z\.]*\([0-9]*\).*,msvcr\1.dll,g' | grep -v '<'`
-rm -f hello.c hello.obj hello.exe hello.exe.manifest
+#rm -f hello.c hello.obj hello.exe hello.exe.manifest helper.c helper.obj helper.exe helper.exe.manifest
 if [ "$1" = "-n" ]; then
     ASKEDFOR=$NAME
 else
diff --git a/erts/etc/win32/nsis/find_redist.sh b/erts/etc/win32/nsis/find_redist.sh
index 153977ded5..bc4260ecba 100755
--- a/erts/etc/win32/nsis/find_redist.sh
+++ b/erts/etc/win32/nsis/find_redist.sh
@@ -2,7 +2,7 @@
 # 
 # %CopyrightBegin%
 # 
-# Copyright Ericsson AB 2007-2010. All Rights Reserved.
+# Copyright Ericsson AB 2007-2011. All Rights Reserved.
 # 
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -114,13 +114,18 @@ RCPATH=`lookup_prog_in_path rc`
 fail=false
 if [ '!' -z "$RCPATH" ]; then 
     BPATH=$RCPATH
-    for x in rc bin v6.0A ; do 
-	NBPATH=`remove_path_element $x "$BPATH"`
-	if [ "$NBPATH" = "$BPATH" ]; then
-	    fail=true
-	    break;
+    allow_fail=false
+    for x in rc bin @ANY v6.0A v7.0A v7.1; do
+	if [ $x = @ANY ]; then
+	    allow_fail=true
+	else
+	    NBPATH=`remove_path_element $x "$BPATH"`
+	    if [ $allow_fail = false -a "$NBPATH" = "$BPATH" ]; then
+		fail=true
+		break;
+	    fi
+	    BPATH="$NBPATH"
 	fi
-	BPATH="$NBPATH"
     done
     if [ $fail = false ]; then
 	BPATH_LIST="$BPATH_LIST $BPATH"
@@ -129,23 +134,31 @@ fi
 
 # Frantic search through two roots with different 
 # version directories. We want to be very specific about the
-# directory structures as we woildnt want to find the wrong 
+# directory structures as we wouldnt want to find the wrong 
 # redistributables...
 
-#echo $BPATH
+#echo $BPATH_LIST
 for BP in $BPATH_LIST; do
-    for verdir in "sdk v2.0" "sdk v3.5" "v6.0A"; do
+    for verdir in "sdk v2.0" "sdk v3.5" "v6.0A" "v7.0"  "v7.0A" "v7.1"; do
 	BPATH=$BP
 	fail=false
-	for x in $verdir bootstrapper packages vcredist_x86 vcredist_x86.exe; do
+	allow_fail=false
+	for x in $verdir @ANY bootstrapper packages vcredist_x86 Redist VC @ALL vcredist_x86.exe; do
 	    #echo "x=$x"
 	    #echo "BPATH=$BPATH"
-	    NBPATH=`add_path_element $x "$BPATH"`
-	    if [ "$NBPATH" = "$BPATH" ]; then
-		fail=true
-		break;
+	    #echo "allow_fail=$allow_fail"
+	    if [ $x = @ANY ]; then
+		allow_fail=true
+	    elif [ $x = @ALL ]; then
+		allow_fail=false
+	    else
+		NBPATH=`add_path_element $x "$BPATH"`
+		if [ $allow_fail = false -a "$NBPATH" = "$BPATH" ]; then
+		    fail=true
+		    break;
+		fi
+		BPATH="$NBPATH"
 	    fi
-	    BPATH="$NBPATH"
 	done
 	if [ $fail = false ]; then
 	    break;
@@ -157,6 +170,18 @@ for BP in $BPATH_LIST; do
     fi
 done
 
+# shortcut for locating vcredist_x86.exe is to put it into $ERL_TOP
+if [ -f $ERL_TOP/vcredist_x86.exe ]; then
+    echo $ERL_TOP/vcredist_x86.exe
+    exit 0
+fi
+
+# or $ERL_TOP/.. to share across multiple builds
+if [ -f $ERL_TOP/../vcredist_x86.exe ]; then
+    echo $ERL_TOP/../vcredist_x86.exe
+    exit 0
+fi
+
 echo "Failed to locate vcredist_x86.exe because directory structure was unexpected" >&2
 exit 3
 
diff --git a/erts/example/next_perm.cc b/erts/example/next_perm.cc
index ee81cb0404..d7c8f1ad97 100644
--- a/erts/example/next_perm.cc
+++ b/erts/example/next_perm.cc
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2006-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -120,7 +120,7 @@ static void ready_async(ErlDrvData drv_data, ErlDrvThreadData async_data)
     ErlDrvPort port = reinterpret_cast<ErlDrvPort>(drv_data);
     our_async_data* d = reinterpret_cast<our_async_data*>(async_data);
     int n = d->data.size(), result_n = n*2 + 5;
-    ErlDrvTermData* result = new ErlDrvTermData[result_n], * rp = result;
+    ErlDrvTermData *result = new ErlDrvTermData[result_n], *rp = result;
     *rp++ = ERL_DRV_PORT;
     *rp++ = driver_mk_port(port);
     for (vector<int>::iterator i = d->data.begin();
diff --git a/erts/include/internal/erl_printf_format.h b/erts/include/internal/erl_printf_format.h
index 45818079ea..064c4a5c09 100644
--- a/erts/include/internal/erl_printf_format.h
+++ b/erts/include/internal/erl_printf_format.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -40,7 +40,7 @@ extern int erts_printf_ulong(fmtfn_t, void*, char, int, int, unsigned long);
 extern int erts_printf_slong(fmtfn_t, void*, char, int, int, signed long);
 extern int erts_printf_double(fmtfn_t, void *, char, int, int, double);
 
-extern int (*erts_printf_eterm_func)(fmtfn_t, void*, unsigned long, long);
+extern int (*erts_printf_eterm_func)(fmtfn_t, void*, unsigned long, long, unsigned long*);
 
 #endif
 
diff --git a/erts/include/internal/libatomic_ops/ethr_atomic.h b/erts/include/internal/libatomic_ops/ethr_atomic.h
index d56693dbf8..93bc06036f 100644
--- a/erts/include/internal/libatomic_ops/ethr_atomic.h
+++ b/erts/include/internal/libatomic_ops/ethr_atomic.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2010. All Rights Reserved.
+ * Copyright Ericsson AB 2010-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -146,13 +146,13 @@ ETHR_NATMC_FUNC__(read)(ETHR_ATMC_T__ *var)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(add_return)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 {
-#ifdef AO_HAVE_fetch_and_add
-    return ((ETHR_AINT_T__) AO_fetch_and_add(&var->counter, (AO_t) incr)) + incr;
+#ifdef AO_HAVE_fetch_and_add_full
+    return ((ETHR_AINT_T__) AO_fetch_and_add_full(&var->counter, (AO_t) incr)) + incr;
 #else
     while (1) {
 	AO_t exp = AO_load(&var->counter);
 	AO_t new = exp + (AO_t) incr;
-	if (AO_compare_and_swap(&var->counter, exp, new))
+	if (AO_compare_and_swap_full(&var->counter, exp, new))
 	    return (ETHR_AINT_T__) new;
     }
 #endif
@@ -167,8 +167,8 @@ ETHR_NATMC_FUNC__(add)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(inc_return)(ETHR_ATMC_T__ *var)
 {
-#ifdef AO_HAVE_fetch_and_add1
-    return ((ETHR_AINT_T__) AO_fetch_and_add1(&var->counter)) + 1;
+#ifdef AO_HAVE_fetch_and_add1_full
+    return ((ETHR_AINT_T__) AO_fetch_and_add1_full(&var->counter)) + 1;
 #else
     return ETHR_NATMC_FUNC__(add_return)(var, 1);
 #endif
@@ -183,8 +183,8 @@ ETHR_NATMC_FUNC__(inc)(ETHR_ATMC_T__ *var)
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(dec_return)(ETHR_ATMC_T__ *var)
 {
-#ifdef AO_HAVE_fetch_and_sub1
-    return ((ETHR_AINT_T__) AO_fetch_and_sub1(&var->counter)) - 1;
+#ifdef AO_HAVE_fetch_and_sub1_full
+    return ((ETHR_AINT_T__) AO_fetch_and_sub1_full(&var->counter)) - 1;
 #else
     return ETHR_NATMC_FUNC__(add_return)(var, -1);
 #endif
@@ -202,7 +202,7 @@ ETHR_NATMC_FUNC__(and_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
     while (1) {
 	AO_t exp = AO_load(&var->counter);
 	AO_t new = exp & ((AO_t) mask);
-	if (AO_compare_and_swap(&var->counter, exp, new))
+	if (AO_compare_and_swap_full(&var->counter, exp, new))
 	    return (ETHR_AINT_T__) exp;
     }
 }
@@ -213,7 +213,7 @@ ETHR_NATMC_FUNC__(or_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
     while (1) {
 	AO_t exp = AO_load(&var->counter);
 	AO_t new = exp | ((AO_t) mask);
-	if (AO_compare_and_swap(&var->counter, exp, new))
+	if (AO_compare_and_swap_full(&var->counter, exp, new))
 	    return (ETHR_AINT_T__) exp;
     }
 }
@@ -225,7 +225,7 @@ ETHR_NATMC_FUNC__(cmpxchg)(ETHR_ATMC_T__ *var,
 {
     ETHR_AINT_T__ act;
     do {
-	if (AO_compare_and_swap(&var->counter, (AO_t) exp, (AO_t) new))
+	if (AO_compare_and_swap_full(&var->counter, (AO_t) exp, (AO_t) new))
 	    return exp;
 	act = (ETHR_AINT_T__) AO_load(&var->counter);
     } while (act == exp);
@@ -237,7 +237,7 @@ ETHR_NATMC_FUNC__(xchg)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new)
 {
     while (1) {
 	AO_t exp = AO_load(&var->counter);
-	if (AO_compare_and_swap(&var->counter, exp, (AO_t) new))
+	if (AO_compare_and_swap_full(&var->counter, exp, (AO_t) new))
 	    return (ETHR_AINT_T__) exp;
     }
 }
@@ -265,7 +265,6 @@ ETHR_NATMC_FUNC__(inc_return_acqb)(ETHR_ATMC_T__ *var)
     return ((ETHR_AINT_T__) AO_fetch_and_add1_acquire(&var->counter)) + 1;
 #else
     ETHR_AINT_T__ res = ETHR_NATMC_FUNC__(add_return)(var, 1);
-    ETHR_MEMORY_BARRIER;
     return res;
 #endif
 }
@@ -287,7 +286,6 @@ ETHR_NATMC_FUNC__(dec_return_relb)(ETHR_ATMC_T__ *var)
 #ifdef AO_HAVE_fetch_and_sub1_release
     return ((ETHR_AINT_T__) AO_fetch_and_sub1_release(&var->counter)) - 1;
 #else
-    ETHR_MEMORY_BARRIER;
     return ETHR_NATMC_FUNC__(dec_return)(var);
 #endif
 }
@@ -314,7 +312,6 @@ ETHR_NATMC_FUNC__(cmpxchg_acqb)(ETHR_ATMC_T__ *var,
     return act;
 #else
     ETHR_AINT_T__ act = ETHR_NATMC_FUNC__(cmpxchg)(var, new, exp);
-    ETHR_MEMORY_BARRIER;
     return act;
 #endif
 }
@@ -333,7 +330,6 @@ ETHR_NATMC_FUNC__(cmpxchg_relb)(ETHR_ATMC_T__ *var,
     } while (act == exp);
     return act;
 #else
-    ETHR_MEMORY_BARRIER;
     return ETHR_NATMC_FUNC__(cmpxchg)(var, new, exp);
 #endif
 }
diff --git a/erts/include/internal/sparc32/atomic.h b/erts/include/internal/sparc32/atomic.h
index 00380dbf07..c297522ab1 100644
--- a/erts/include/internal/sparc32/atomic.h
+++ b/erts/include/internal/sparc32/atomic.h
@@ -1,7 +1,7 @@
 /* 
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2005-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -95,7 +95,7 @@ ETHR_NATMC_FUNC__(add_return)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 {
     ETHR_AINT_T__ old, tmp;
 
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n");
+    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n" : : : "memory");
     do {
 	old = var->counter;
 	tmp = old+incr;
@@ -105,7 +105,7 @@ ETHR_NATMC_FUNC__(add_return)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ incr)
 	    : "r"(old), "r"(&var->counter), "0"(tmp)
 	    : "memory");
     } while (__builtin_expect(old != tmp, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    __asm__ __volatile__("membar #StoreLoad|#StoreStore" : : : "memory");
     return old+incr;
 }
 
@@ -144,7 +144,7 @@ ETHR_NATMC_FUNC__(and_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 {
     ETHR_AINT_T__ old, tmp;
 
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n");
+    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n" : : : "memory");
     do {
 	old = var->counter;
 	tmp = old & mask;
@@ -154,7 +154,7 @@ ETHR_NATMC_FUNC__(and_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 	    : "r"(old), "r"(&var->counter), "0"(tmp)
 	    : "memory");
     } while (__builtin_expect(old != tmp, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    __asm__ __volatile__("membar #StoreLoad|#StoreStore" : : : "memory");
     return old;
 }
 
@@ -163,7 +163,7 @@ ETHR_NATMC_FUNC__(or_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 {
     ETHR_AINT_T__ old, tmp;
 
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n");
+    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n" : : : "memory");
     do {
 	old = var->counter;
 	tmp = old | mask;
@@ -173,7 +173,7 @@ ETHR_NATMC_FUNC__(or_retold)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ mask)
 	    : "r"(old), "r"(&var->counter), "0"(tmp)
 	    : "memory");
     } while (__builtin_expect(old != tmp, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    __asm__ __volatile__("membar #StoreLoad|#StoreStore" : : : "memory");
     return old;
 }
 
@@ -182,7 +182,7 @@ ETHR_NATMC_FUNC__(xchg)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ val)
 {
     ETHR_AINT_T__ old, new;
 
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad");
+    __asm__ __volatile__("membar #LoadLoad|#StoreLoad" : : : "memory");
     do {
 	old = var->counter;
 	new = val;
@@ -192,20 +192,20 @@ ETHR_NATMC_FUNC__(xchg)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ val)
 	    : "r"(old), "r"(&var->counter), "0"(new)
 	    : "memory");
     } while (__builtin_expect(old != new, 0));
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    __asm__ __volatile__("membar #StoreLoad|#StoreStore" : : : "memory");
     return old;
 }
 
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(cmpxchg)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new, ETHR_AINT_T__ old)
 {
-    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n");
+    __asm__ __volatile__("membar #LoadLoad|#StoreLoad\n" : : : "memory");
     __asm__ __volatile__(
       ETHR_CAS__ " [%2], %1, %0"
       : "=&r"(new)
       : "r"(old), "r"(&var->counter), "0"(new)
       : "memory");
-    __asm__ __volatile__("membar #StoreLoad|#StoreStore");
+    __asm__ __volatile__("membar #StoreLoad|#StoreStore" : : : "memory");
     return new;
 }
 
@@ -213,13 +213,11 @@ ETHR_NATMC_FUNC__(cmpxchg)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new, ETHR_AINT_T__
  * Atomic ops with at least specified barriers.
  */
 
-/* TODO: relax acquire barriers */
-
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(read_acqb)(ETHR_ATMC_T__ *var)
 {
     ETHR_AINT_T__ res = ETHR_NATMC_FUNC__(read)(var);
-    __asm__ __volatile__("membar #LoadLoad|#LoadStore|#StoreLoad|#StoreStore" : : : "memory");
+    __asm__ __volatile__("membar #LoadLoad|#LoadStore" : : : "memory");
     return res;
 }
 
@@ -234,21 +232,18 @@ static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(inc_return_acqb)(ETHR_ATMC_T__ *var)
 {
     ETHR_AINT_T__ res = ETHR_NATMC_FUNC__(inc_return)(var);
-    __asm__ __volatile__("membar #LoadLoad|#LoadStore" : : : "memory");
     return res;
 }
 
 static ETHR_INLINE void
 ETHR_NATMC_FUNC__(dec_relb)(ETHR_ATMC_T__ *var)
 {
-    __asm__ __volatile__("membar #LoadStore|#StoreStore" : : : "memory");
     ETHR_NATMC_FUNC__(dec)(var);
 }
 
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(dec_return_relb)(ETHR_ATMC_T__ *var)
 {
-    __asm__ __volatile__("membar #LoadStore|#StoreStore" : : : "memory");
     return ETHR_NATMC_FUNC__(dec_return)(var);
 }
 
@@ -256,14 +251,12 @@ static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(cmpxchg_acqb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new, ETHR_AINT_T__ old)
 {
     ETHR_AINT_T__ res = ETHR_NATMC_FUNC__(cmpxchg)(var, new, old);
-    __asm__ __volatile__("membar #LoadLoad|#LoadStore" : : : "memory");
     return res;
 }
 
 static ETHR_INLINE ETHR_AINT_T__
 ETHR_NATMC_FUNC__(cmpxchg_relb)(ETHR_ATMC_T__ *var, ETHR_AINT_T__ new, ETHR_AINT_T__ old)
 {
-    __asm__ __volatile__("membar #LoadStore|#StoreStore" : : : "memory");
     return ETHR_NATMC_FUNC__(cmpxchg)(var, new, old);
 }
 
diff --git a/erts/include/internal/tile/atomic.h b/erts/include/internal/tile/atomic.h
index 48e4c0c6c8..5697afda25 100644
--- a/erts/include/internal/tile/atomic.h
+++ b/erts/include/internal/tile/atomic.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2008-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -65,25 +65,35 @@ ethr_native_atomic32_read(ethr_native_atomic32_t *var)
 static ETHR_INLINE void
 ethr_native_atomic32_add(ethr_native_atomic32_t *var, ethr_sint32_t incr)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_add(&var->counter, incr);
+    ETHR_MEMORY_BARRIER;
 }      
        
 static ETHR_INLINE void
 ethr_native_atomic32_inc(ethr_native_atomic32_t *var)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_increment(&var->counter);
+    ETHR_MEMORY_BARRIER;
 }
 
 static ETHR_INLINE void
 ethr_native_atomic32_dec(ethr_native_atomic32_t *var)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_decrement(&var->counter);
+    ETHR_MEMORY_BARRIER;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_add_return(ethr_native_atomic32_t *var, ethr_sint32_t incr)
 {
-    return atomic_exchange_and_add(&var->counter, incr) + incr;
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_exchange_and_add(&var->counter, incr) + incr;
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
@@ -101,18 +111,27 @@ ethr_native_atomic32_dec_return(ethr_native_atomic32_t *var)
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_and_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
 {
-    return atomic_and_val(&var->counter, mask);
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_and_val(&var->counter, mask);
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_or_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
 {
-    return atomic_or_val(&var->counter, mask);
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_or_val(&var->counter, mask);
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_xchg(ethr_native_atomic32_t *var, ethr_sint32_t val)
 {   
+    ETHR_MEMORY_BARRIER;
     return atomic_exchange_acq(&var->counter, val);
 } 
 
@@ -121,6 +140,7 @@ ethr_native_atomic32_cmpxchg(ethr_native_atomic32_t *var,
 			     ethr_sint32_t new,
 			     ethr_sint32_t expected)
 {
+    ETHR_MEMORY_BARRIER;
     return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
 }
 
@@ -139,9 +159,7 @@ ethr_native_atomic32_read_acqb(ethr_native_atomic32_t *var)
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_inc_return_acqb(ethr_native_atomic32_t *var)
 {
-    ethr_sint32_t res = ethr_native_atomic32_inc_return(var);
-    ETHR_MEMORY_BARRIER;
-    return res;
+    return ethr_native_atomic32_inc_return(var);
 }
 
 static ETHR_INLINE void
@@ -154,14 +172,12 @@ ethr_native_atomic32_set_relb(ethr_native_atomic32_t *var, ethr_sint32_t val)
 static ETHR_INLINE void
 ethr_native_atomic32_dec_relb(ethr_native_atomic32_t *var)
 {
-    ETHR_MEMORY_BARRIER;
     ethr_native_atomic32_dec(var);
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_dec_return_relb(ethr_native_atomic32_t *var)
 {
-    ETHR_MEMORY_BARRIER;
     return ethr_native_atomic32_dec_return(var);
 }
 
@@ -178,7 +194,6 @@ ethr_native_atomic32_cmpxchg_relb(ethr_native_atomic32_t *var,
 				  ethr_sint32_t new,
 				  ethr_sint32_t exp)
 {
-    ETHR_MEMORY_BARRIER;
     return ethr_native_atomic32_cmpxchg(var, new, exp);
 }
 
diff --git a/erts/lib_src/common/erl_misc_utils.c b/erts/lib_src/common/erl_misc_utils.c
index 4c881993a5..5dbf98c7d1 100644
--- a/erts/lib_src/common/erl_misc_utils.c
+++ b/erts/lib_src/common/erl_misc_utils.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2006-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -813,7 +813,7 @@ read_topology(erts_cpu_info_t *cpuinfo)
 
     cpuinfo->topology = malloc(sizeof(erts_cpu_topology_t)
 			       * cpuinfo->configured);
-    if (!cpuinfo)
+    if (!cpuinfo->topology)
 	goto error;
 
     for (ix = 0; ix < cpuinfo->configured; ix++) {
@@ -1023,7 +1023,7 @@ read_topology(erts_cpu_info_t *cpuinfo)
 
     cpuinfo->topology = malloc(sizeof(erts_cpu_topology_t)
 			       * cpuinfo->configured);
-    if (!cpuinfo)
+    if (!cpuinfo->topology)
 	goto error;
 
     for (ix = 0; ix < cpuinfo->configured; ix++) {
diff --git a/erts/lib_src/common/erl_printf_format.c b/erts/lib_src/common/erl_printf_format.c
index bd3d38e649..fba3fd723c 100644
--- a/erts/lib_src/common/erl_printf_format.c
+++ b/erts/lib_src/common/erl_printf_format.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -25,9 +25,9 @@
  *  width:      [0-9]+ | '*' 
  *  precision:  [0-9]+ | '*' 
  *  length: hh | h | l | ll | L | j | t | b<sz>
- *  conversion: d,i | o,u,x,X | e,E | f,F | g,G | a,A | c | s | T |
+ *  conversion: d,i | o,u,x,X | e,E | f,F | g,G | a,A | c | s | T | R |
  *              p | n | %
- *  sz: 8 | 16 | 32 | 64 | p
+ *  sz: 8 | 16 | 32 | 64 | p | e
  */
 
 /* Without this, variable argument lists break on VxWorks */
@@ -76,6 +76,18 @@
 #endif
 #endif
 
+#ifndef ERTS_SIZEOF_ETERM
+#  ifdef HALFWORD_HEAP_EMULATOR
+#    if SIZEOF_VOID_P == 8
+#      define ERTS_SIZEOF_ETERM 4
+#    else
+#      error "HALFWORD_HEAP_EMULATOR only allowed on 64-bit architecture"
+#    endif
+#  else
+#    define ERTS_SIZEOF_ETERM SIZEOF_VOID_P
+#  endif
+#endif
+
 #if defined(__GNUC__)
 #  undef inline
 #  define inline __inline__
@@ -89,7 +101,7 @@
 #endif
 
 #define FMTC_d    0x0000
-#define FMTC_i    0x0001
+#define FMTC_R    0x0001
 #define FMTC_o    0x0002
 #define FMTC_u    0x0003
 #define FMTC_x    0x0004
@@ -153,7 +165,7 @@ static char heX[] = "0123456789ABCDEF";
 #define SIGN(X) ((X) > 0 ? 1 : ((X) < 0 ? -1 : 0)) 
 #define USIGN(X) ((X) == 0 ? 0 : 1)
 
-int (*erts_printf_eterm_func)(fmtfn_t, void*, unsigned long, long) = NULL;
+int (*erts_printf_eterm_func)(fmtfn_t, void*, unsigned long, long, unsigned long*) = NULL;
 
 static int
 noop_fn(void *vfp, char* buf, size_t len)
@@ -171,8 +183,8 @@ static int fmt_fld(fmtfn_t fn,void* arg,
     int len;
 
     /* format the prefix */
-    if ((sign || (fmt & (FMTF_sgn|FMTF_blk))) &&
-	(((fmt & FMTC_MASK) == FMTC_d) || ((fmt & FMTC_MASK) == FMTC_i))) {
+    if ((sign || (fmt & (FMTF_sgn|FMTF_blk)))
+	&& (fmt & FMTC_MASK) == FMTC_d) {
 	if (sign < 0)
 	    *pp++ = '-';
 	else if ((fmt & FMTF_sgn))
@@ -233,7 +245,6 @@ static int fmt_long(fmtfn_t fn,void* arg,int sign,unsigned long uval,
 
     switch(fmt & FMTC_MASK) {
     case FMTC_d:
-    case FMTC_i:
     case FMTC_u:
 	break;
     case FMTC_o: 
@@ -286,7 +297,6 @@ static int fmt_long_long(fmtfn_t fn,void* arg,int sign,
 
     switch(fmt & FMTC_MASK) {
     case FMTC_d:
-    case FMTC_i:
     case FMTC_u:
 	break;
     case FMTC_o: 
@@ -520,6 +530,17 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 #error No integer datatype with the same size as 'void *' found
 #endif
 		}
+		else if (*ptr == 'e') {
+		    ptr++;
+#if SIZEOF_INT == ERTS_SIZEOF_ETERM
+#elif SIZEOF_LONG == ERTS_SIZEOF_ETERM
+		    fmt |= FMTL_l;
+#elif SIZEOF_LONG_LONG == ERTS_SIZEOF_ETERM
+		    fmt |= FMTL_ll;
+#else
+#error No integer datatype with the same size as Eterm found
+#endif
+		}
 		else {
 		    int bits = 0;
 		    while(isdigit((int) *ptr))
@@ -599,7 +620,7 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 	    /* specifier */
 	    switch(*ptr) {
 	    case 'd': ptr++; fmt |= FMTC_d; break;
-	    case 'i': ptr++; fmt |= FMTC_i; break;
+	    case 'i': ptr++; fmt |= FMTC_d; break;
 	    case 'o': ptr++; fmt |= FMTC_o; break;
 	    case 'u': ptr++; fmt |= FMTC_u; break;
 	    case 'x': ptr++; fmt |= FMTC_x; break;
@@ -614,6 +635,7 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 	    case 'p': ptr++; fmt |= FMTC_p; break;
 	    case 'n': ptr++; fmt |= FMTC_n; break;
 	    case 'T': ptr++; fmt |= FMTC_T; break;
+	    case 'R': ptr++; fmt |= FMTC_R; break;
 	    case '%':
 		FMT(fn,arg,ptr,1,count);
 		ptr++;
@@ -627,7 +649,6 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 
 	    switch(fmt & FMTC_MASK) {
 	    case FMTC_d:
-	    case FMTC_i:
 		switch(fmt & FMTL_MASK) {
 		case FMTL_hh: {
 		    signed char tval = (signed char) va_arg(ap,int);
@@ -791,9 +812,12 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 		default: *va_arg(ap,int*) = count; break;
 		}
 		break;
-	    case FMTC_T: {
+	    case FMTC_T:    /* Eterm */
+	    case FMTC_R: {  /* Eterm, Eterm* base  (base ignored if !HALFWORD_HEAP) */
 		long prec;
 		unsigned long eterm;
+		unsigned long* eterm_base;
+		
 		if (!erts_printf_eterm_func)
 		    return -EINVAL;
 		if (precision < 0)
@@ -803,14 +827,16 @@ int erts_printf_format(fmtfn_t fn, void* arg, char* fmt, va_list ap)
 		else
 		    prec = (long) precision;
 		eterm = va_arg(ap, unsigned long);
+		eterm_base = ((fmt & FMTC_MASK) == FMTC_R) ?
+		    va_arg(ap, unsigned long*) : NULL;
 		if (width > 0 && !(fmt & FMTF_adj)) {
-		    res = (*erts_printf_eterm_func)(noop_fn, NULL, eterm, prec);
+		    res = (*erts_printf_eterm_func)(noop_fn, NULL, eterm, prec, eterm_base);
 		    if (res < 0)
 			return res;
 		    if (width > res)
 			BLANKS(fn, arg, width - res, count);
 		}
-		res = (*erts_printf_eterm_func)(fn, arg, eterm, prec);
+		res = (*erts_printf_eterm_func)(fn, arg, eterm, prec, eterm_base);
 		if (res < 0)
 		    return res;
 		count += res;
@@ -901,7 +927,7 @@ erts_printf_slong(fmtfn_t fn, void *arg, char conv, int pad, int width,
     unsigned long ul_val;
     switch (conv) {
     case 'd': fmt |= FMTC_d; break;
-    case 'i': fmt |= FMTC_i; break;
+    case 'i': fmt |= FMTC_d; break;
     case 'o': fmt |= FMTC_o; break;
     case 'x': fmt |= FMTC_x; break;
     case 'X': fmt |= FMTC_X; break;
diff --git a/erts/preloaded/ebin/erl_prim_loader.beam b/erts/preloaded/ebin/erl_prim_loader.beam
index bff3f7f9de..dccb92a5af 100644
--- a/erts/preloaded/ebin/erl_prim_loader.beam
+++ b/erts/preloaded/ebin/erl_prim_loader.beam
diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam
index 5d2f187435..b537546071 100644
--- a/erts/preloaded/ebin/erlang.beam
+++ b/erts/preloaded/ebin/erlang.beam
diff --git a/erts/preloaded/ebin/init.beam b/erts/preloaded/ebin/init.beam
index 7e492057da..901def5eba 100644
--- a/erts/preloaded/ebin/init.beam
+++ b/erts/preloaded/ebin/init.beam
diff --git a/erts/preloaded/ebin/otp_ring0.beam b/erts/preloaded/ebin/otp_ring0.beam
index c443866671..62ebbb9ffe 100644
--- a/erts/preloaded/ebin/otp_ring0.beam
+++ b/erts/preloaded/ebin/otp_ring0.beam
diff --git a/erts/preloaded/ebin/prim_file.beam b/erts/preloaded/ebin/prim_file.beam
index 4a75e43e73..66fcb9e6a9 100644
--- a/erts/preloaded/ebin/prim_file.beam
+++ b/erts/preloaded/ebin/prim_file.beam
diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam
index 30bbfb0943..9894050cba 100644
--- a/erts/preloaded/ebin/prim_inet.beam
+++ b/erts/preloaded/ebin/prim_inet.beam
diff --git a/erts/preloaded/ebin/prim_zip.beam b/erts/preloaded/ebin/prim_zip.beam
index 6681466767..9ee70d59ec 100644
--- a/erts/preloaded/ebin/prim_zip.beam
+++ b/erts/preloaded/ebin/prim_zip.beam
diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam
index 593bb8dbed..542e266f88 100644
--- a/erts/preloaded/ebin/zlib.beam
+++ b/erts/preloaded/ebin/zlib.beam
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl
index 10be852e92..8e0790e74a 100644
--- a/erts/preloaded/src/prim_file.erl
+++ b/erts/preloaded/src/prim_file.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2011. All Rights Reserved.
 %%
 %% The contents of this file are subject to the Erlang Public License,
 %% Version 1.1, (the "License"); you may not use this file except in
@@ -64,7 +64,7 @@
 -include("file.hrl").
 
 -define(DRV,    efile).
--define(FD_DRV, efile).
+-define(FD_DRV, "efile").
 
 -define(LARGEFILESIZE, (1 bsl 63)).
 
@@ -506,7 +506,7 @@ read_file(_) ->
 
 %% Takes a Port opened with open/1.
 read_file(Port, File) when is_port(Port),
-			   (is_list(File) orelse is_binary(File))->
+			   (is_list(File) orelse is_binary(File)) ->
     Cmd = [?FILE_READ_FILE | pathname(File)],
     case drv_command(Port, Cmd) of
 	{error, enomem} ->
@@ -832,7 +832,7 @@ drv_open(Driver, Portopts) ->
 	    {ok, Port}
     catch
 	error:Reason ->
-	    {error,Reason}
+	    {error, Reason}
     end.
 
 
@@ -864,9 +864,9 @@ drv_command(Port, Command) ->
 drv_command(Port, Command, R) when is_binary(Command) ->
     drv_command(Port, Command, true, R);
 drv_command(Port, Command, R) ->
-    try erlang:iolist_to_binary(Command) of
-	Bin ->
-	    drv_command(Port, Bin, true, R)
+    try erlang:iolist_size(Command) of
+	_ ->
+	    drv_command(Port, Command, true, R)
     catch
 	error:Reason ->
 	    {error, Reason}
@@ -1041,8 +1041,8 @@ translate_response(?FILE_RESP_NUMBER, List) ->
     {N, []} = get_uint64(List),
     {ok, N};
 translate_response(?FILE_RESP_DATA, List) ->
-    {N, Data} = get_uint64(List),
-    {ok, {N, Data}};
+    {_N, _Data} = ND = get_uint64(List),
+    {ok, ND};
 translate_response(?FILE_RESP_INFO, List) when is_list(List) ->
     {ok, transform_info_ints(get_uint32s(List))};
 translate_response(?FILE_RESP_NUMERR, L0) ->
@@ -1087,10 +1087,8 @@ translate_response(?FILE_RESP_FNAME, Data) when is_binary(Data) ->
     {ok, prim_file:internal_native2name(Data)};
 translate_response(?FILE_RESP_FNAME, Data) ->
     {ok, Data};
-
 translate_response(?FILE_RESP_ALL_DATA, Data) ->
     {ok, Data};
-
 translate_response(X, Data) ->
     {error, {bad_response_from_port, [X | Data]}}.
 
@@ -1137,14 +1135,14 @@ date_to_bytes(undefined) ->
 date_to_bytes({{Y, Mon, D}, {H, Min, S}}) ->
     <<Y:32, Mon:32, D:32, H:32, Min:32, S:32>>.
 
-% uint64([[X1, X2, X3, X4] = Y1 | [X5, X6, X7, X8] = Y2]) ->
-%     (uint32(Y1) bsl 32) bor uint32(Y2).
+%% uint64([[X1, X2, X3, X4] = Y1 | [X5, X6, X7, X8] = Y2]) ->
+%%     (uint32(Y1) bsl 32) bor uint32(Y2).
 
-% uint64(X1, X2, X3, X4, X5, X6, X7, X8) ->
-%     (uint32(X1, X2, X3, X4) bsl 32) bor uint32(X5, X6, X7, X8).
+%% uint64(X1, X2, X3, X4, X5, X6, X7, X8) ->
+%%     (uint32(X1, X2, X3, X4) bsl 32) bor uint32(X5, X6, X7, X8).
 
-% uint32([X1,X2,X3,X4]) ->
-%     (X1 bsl 24) bor (X2 bsl 16) bor (X3 bsl 8) bor X4.
+%% uint32([X1,X2,X3,X4]) ->
+%%     (X1 bsl 24) bor (X2 bsl 16) bor (X3 bsl 8) bor X4.
 
 uint32(X1,X2,X3,X4) ->
     (X1 bsl 24) bor (X2 bsl 16) bor (X3 bsl 8) bor X4.
diff --git a/erts/test/Makefile b/erts/test/Makefile
index 94458da019..68be3f2178 100644
--- a/erts/test/Makefile
+++ b/erts/test/Makefile
@@ -89,7 +89,7 @@ release_tests_spec: opt
 	$(INSTALL_DIR) $(RELSYSDIR)
 	$(INSTALL_DATA) system.spec system.dynspec system.spec.vxworks \
 		$(ERL_FILES) $(TARGET_FILES) $(RELSYSDIR)
-	chmod -f -R u+w $(RELSYSDIR)
+	chmod -R u+w $(RELSYSDIR)
 	tar cf - *_SUITE_data utils | (cd $(RELSYSDIR); tar xf -)
 
 release_docs_spec:
diff --git a/erts/vsn.mk b/erts/vsn.mk
index b02073134a..193a914a70 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -1,7 +1,7 @@
 # 
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2010. All Rights Reserved.
+# Copyright Ericsson AB 1997-2011. All Rights Reserved.
 #
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -17,8 +17,8 @@
 # %CopyrightEnd%
 # 
 
-VSN = 5.8.3.2
-SYSTEM_VSN = R14B02
+VSN = 5.8.4
+SYSTEM_VSN = R14B03
 
 # Port number 4365 in 4.2
 # Port number 4366 in 4.3