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authorHenrik Nord <[email protected]>2016-09-21 12:24:19 +0200
committerHenrik Nord <[email protected]>2016-09-21 12:24:19 +0200
commitd419183bb3d2204144492104f6f33a5753127b12 (patch)
treeb94b974ac59b08f463475f9c559873cd85ff493b /erts/doc/src/notes.xml
parent86f7ca3c3ad35f63352470e19c924c03513910ad (diff)
parente6059f94571a6c968c15b9de6b7d63ebd64f9acf (diff)
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Merge tag 'OTP-19.1'
=== OTP-19.1 === Changed Applications: - asn1-4.0.4 - common_test-1.12.3 - compiler-7.0.2 - crypto-3.7.1 - debugger-4.2.1 - dialyzer-3.0.2 - diameter-1.12.1 - edoc-0.8 - erl_docgen-0.6 - erl_interface-3.9.1 - erts-8.1 - eunit-2.3.1 - gs-1.6.2 - hipe-3.15.2 - ic-4.4.2 - inets-6.3.3 - jinterface-1.7.1 - kernel-5.1 - mnesia-4.14.1 - observer-2.2.2 - odbc-2.11.3 - parsetools-2.1.3 - reltool-0.7.2 - runtime_tools-1.10.1 - sasl-3.0.1 - snmp-5.2.4 - ssh-4.3.2 - ssl-8.0.2 - stdlib-3.1 - syntax_tools-2.1 - tools-2.8.6 - wx-1.7.1 - xmerl-1.3.12 Unchanged Applications: - cosEvent-2.2.1 - cosEventDomain-1.2.1 - cosFileTransfer-1.2.1 - cosNotification-1.2.2 - cosProperty-1.2.1 - cosTime-1.2.2 - cosTransactions-1.3.2 - eldap-1.2.2 - et-1.6 - megaco-3.18.1 - orber-3.8.2 - os_mon-2.4.1 - otp_mibs-1.1.1 - percept-0.9 - public_key-1.2 - typer-0.9.11 Conflicts: OTP_VERSION lib/gs/doc/src/notes.xml lib/gs/vsn.mk
Diffstat (limited to 'erts/doc/src/notes.xml')
-rw-r--r--erts/doc/src/notes.xml282
1 files changed, 282 insertions, 0 deletions
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index d38f29b8d1..412675fd2b 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -32,6 +32,288 @@
<p>This document describes the changes made to the ERTS application.</p>
+<section><title>Erts 8.1</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Fix bug for calls from hipe code to BIFs that disable GC
+ while yielding. Has been causing Dialyzer crashes on ARM
+ (and presumably all other non-intel platforms).</p>
+ <p>
+ Own Id: OTP-13724 Aux Id: PR-1116 </p>
+ </item>
+ <item>
+ <p>
+ Fix a bug where changing the current working directory of
+ the VM would not change the current working directory of
+ programs spawned using <c>erlang:open_port({spawn,""},
+ ...)</c>.</p>
+ <p>
+ Own Id: OTP-13733 Aux Id: ERL-175 </p>
+ </item>
+ <item>
+ <p>
+ Fix a bug where disabling tracing from a process that had
+ return_to tracing enabled and was tracing on
+ <c>erlang:trace/3</c> would cause a segmentation fault.</p>
+ <p>
+ Own Id: OTP-13734</p>
+ </item>
+ <item>
+ <p>
+ Update all erts documentation to use simpler English, use
+ consistent terminology and be easier to navigate.</p>
+ <p>
+ Own Id: OTP-13740</p>
+ </item>
+ <item>
+ <p>
+ Add dirty schedulers to the microstate accounting
+ statistics.</p>
+ <p>
+ Own Id: OTP-13744</p>
+ </item>
+ <item>
+ <p>
+ Fixed dirty scheduler build support on 32-bit windows.</p>
+ <p>
+ Own Id: OTP-13759</p>
+ </item>
+ <item>
+ <p>
+ inet:getstat(Socket) on an SCTP socket returned 0 for
+ send stats. This bug has now been corrected. Reported by
+ systra as issue ERL-102 on bugs.erlang.org.</p>
+ <p>
+ Own Id: OTP-13773 Aux Id: ERL-102 </p>
+ </item>
+ <item>
+ <p>
+ AF_UNSPEC and unknown address families were misread by
+ UDP receive in prim_inet resulting in an exception. This
+ bug has now been corrected.</p>
+ <p>
+ Own Id: OTP-13775</p>
+ </item>
+ <item>
+ <p>
+ Sweep HiPE stack for literals during code purge.</p>
+ <p>
+ Own Id: OTP-13777 Aux Id: PR-1122 </p>
+ </item>
+ <item>
+ <p>
+ Fix bug in run_erl for OpenBSD that could cause it on
+ rare occations to exit without starting the program (erl)
+ at all.</p>
+ <p>
+ Own Id: OTP-13795</p>
+ </item>
+ <item>
+ <p>
+ Update build scripts to not make assumtions about where
+ env, cp and perl are located.</p>
+ <p>
+ Own Id: OTP-13800</p>
+ </item>
+ <item>
+ <p>
+ Fixed a bug where init:stop could deadlock if a process
+ with infinite shutdown timeout (e.g. a supervisor)
+ attempted to load code while terminating.</p>
+ <p>
+ Own Id: OTP-13802</p>
+ </item>
+ <item>
+ <p>
+ Fixed a segmentation fault on sparc CPUs when free'ing a
+ tracer module's state.</p>
+ <p>
+ Own Id: OTP-13803</p>
+ </item>
+ <item>
+ <p>
+ <c>fun</c>s was not properly handled during purge of a
+ module. This could cause a crash of the VM after a purge
+ of a module.</p>
+ <p>
+ Own Id: OTP-13809</p>
+ </item>
+ <item>
+ <p>
+ Fixed a memory leak when the process monitoring a port
+ crashed.</p>
+ <p>
+ Own Id: OTP-13818</p>
+ </item>
+ <item>
+ <p>
+ Fixed multiple dirty scheduler related tracing bugs.</p>
+ <p>
+ Own Id: OTP-13822</p>
+ </item>
+ <item>
+ <p>
+ Fix error handling in beam code runtime loader for a
+ number of cases when index and size fields got corrupted
+ (negative) values.</p>
+ <p>
+ Own Id: OTP-13848 Aux Id: ERL-216 </p>
+ </item>
+ <item>
+ <p>
+ Minor fix of dirty scheduler implementation.</p>
+ <p>
+ Own Id: OTP-13852</p>
+ </item>
+ <item>
+ <p>
+ Calls to <c>erl_drv_send_term()</c> or
+ <c>erl_drv_output_term()</c> from a non-scheduler thread
+ while the corresponding port was invalid caused the
+ emulator to enter an inconsistent state which eventually
+ caused an emulator crash.</p>
+ <p>
+ Own Id: OTP-13866</p>
+ </item>
+ <item>
+ <p>
+ Fix a rare race condition in <c>erlang:open_port({spawn,
+ ""}, ...)</c> that would result in the erl_child_setup
+ program aborting and cause the emulator to exit.</p>
+ <p>
+ Own Id: OTP-13868</p>
+ </item>
+ <item>
+ <p>Driver and NIF operations accessing processes or ports
+ could cause an emulator crash when used from
+ non-scheduler threads. Those operations are:</p> <list>
+ <item><c>erl_drv_send_term()</c></item>
+ <item><c>driver_send_term()</c></item>
+ <item><c>erl_drv_output_term()</c></item>
+ <item><c>driver_output_term()</c></item>
+ <item><c>enif_send()</c></item>
+ <item><c>enif_port_command()</c></item> </list>
+ <p>
+ Own Id: OTP-13869</p>
+ </item>
+ <item>
+ <p>
+ Fix start scripts generation dependency in Makefile</p>
+ <p>
+ Own Id: OTP-13871 Aux Id: ERL-241 </p>
+ </item>
+ <item>
+ <p>
+ The VM could crash if <c>erlang:get_stacktrace()</c> was
+ called after a rescheduled NIF had thrown an exception.</p>
+ <p>
+ Own Id: OTP-13877</p>
+ </item>
+ <item>
+ <p>Calling <c>code:delete/1</c> before a loading a module
+ with an on_load function, the old code would be
+ overwritten, causing a memory or a crash if NIFs were
+ involved. (Thanks to vans163 for reporting this bug.)</p>
+ <p>
+ Own Id: OTP-13893 Aux Id: ERL-240 </p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ Improved accuracy of timeouts on MacOS X. This by setting
+ premature timeouts followed by a short actual timeout
+ during scheduler wait.</p>
+ <p>
+ Own Id: OTP-13698</p>
+ </item>
+ <item>
+ <p>Added the following symbolic time unit representations
+ to the <seealso
+ marker="erlang#type-time_unit"><c>erlang:time_unit()</c></seealso>
+ type:</p> <list> <item><c>second</c></item>
+ <item><c>millisecond</c></item>
+ <item><c>microsecond</c></item>
+ <item><c>nanosecond</c></item> </list> <p>The following
+ symbolic time unit representations are now
+ <em>deprecated</em>, but still part of the
+ <c>erlang:time_unit()</c> type:</p> <list>
+ <item><c>seconds</c></item>
+ <item><c>milli_seconds</c></item>
+ <item><c>micro_seconds</c></item>
+ <item><c>nano_seconds</c></item> </list>
+ <p>
+ Own Id: OTP-13735</p>
+ </item>
+ <item>
+ <p>
+ Fix maps hashing entropy of maps with maps keys.</p>
+ <p>
+ Own Id: OTP-13763 Aux Id: ERL-199 </p>
+ </item>
+ <item>
+ <p>
+ Improved dirty scheduler support. A purge of a module can
+ now be performed without having to wait for completion of
+ all ongoing dirty NIF calls.</p>
+ <p>
+ Note that when enabling support for dirty schedulers, a
+ new purge strategy will as of ERTS version 8.1 be
+ enabled. This new strategy is not fully backwards
+ compatible with the strategy used by default. For more
+ information see the documentation of <seealso
+ marker="erts:erlang#check_process_code/3"><c>erlang:check_process_code/3</c></seealso>.</p>
+ <p>
+ Own Id: OTP-13808 Aux Id: OTP-13833 </p>
+ </item>
+ <item>
+ <p>
+ A new purge strategy has been introduced. The new
+ strategy will by default be disabled during the OTP 19
+ release, but will be the only strategy available as of
+ the OTP 20 release.</p>
+ <p>
+ The new strategy is slightly incompatible with the
+ strategy being used by default in OTP 19. Using the
+ default strategy, processes holding <c>fun</c>s that
+ refer to the module being purged either fail a soft
+ purge, or will be killed during a hard purge. The new
+ strategy completely ignores <c>fun</c>s. If <c>fun</c>s
+ referring to the code being purged exist, and are used
+ after a purge, an exception will be raised upon usage.
+ That is, the behavior will be exactly the same as the
+ case when a <c>fun</c> is received by a process after the
+ purge.</p>
+ <p>
+ The new strategy can optionally be enabled when building
+ OTP during OTP 19, and will automatically be enabled if
+ the runtime system is built with support for dirty
+ schedulers.</p>
+ <p>
+ For more information see the documentation of <seealso
+ marker="erts:erlang#check_process_code/3"><c>erlang:check_process_code/3</c></seealso>.</p>
+ <p>
+ Own Id: OTP-13833</p>
+ </item>
+ <item>
+ <p>
+ Fixed unnecessary overestimation of heap size need during
+ garbage collection.</p>
+ <p>
+ Own Id: OTP-13851</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Erts 8.0.5</title>
<section><title>Fixed Bugs and Malfunctions</title>