From 0f8afe80c6582f7affd17f36dc9cb48cc7946713 Mon Sep 17 00:00:00 2001 From: Erlang/OTP Date: Mon, 14 Mar 2016 10:46:23 +0100 Subject: Prepare release --- erts/doc/src/notes.xml | 186 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) (limited to 'erts/doc/src') diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index a726cc7b97..acd816a81c 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -32,6 +32,192 @@

This document describes the changes made to the ERTS application.

+
Erts 7.3 + +
Fixed Bugs and Malfunctions + + +

+ The '-path' flag to 'erl' has been documented. This flag + replaces the path specified in the boot script. It has + always existed, but was earlier only documented in SASL + (script).

+

+ Own Id: OTP-13060

+ + +

+ The call_time tracing functionality internally + used a time based on OS system time in order to measure + call time which could cause erroneous results if OS + system time was changed during tracing.

+

+ This functionality now use Erlang monotonic time in order + to measure time. Besides fixing the erroneous results due + to OS system time being used, the results are often also + better since Erlang monotonic time often has better + accuracy and precision.

+

+ Own Id: OTP-13216

+ + +

+ Fix behaviour of -delay_write command line switch of + epmd, which is used for debugging - in some cases epmd + was sleeping twice the requested amount of time.

+

+ Own Id: OTP-13220

+ + +

+ Fix race between timeout and exit signal that could cause + a process to ignore the exit signal and continue + execution. Bug exist since OTP 18.0.

+

+ Own Id: OTP-13245

+ + +

+ Fix bug in erlang:halt/1,2 for large exit status + values, causing either badarg (on 32-bit) or exit + with a crash dump and/or core dump (on 64-bit). Make + erlang:halt/1,2 tolerate any non negative integer + as exit status and truncate high order bits if the OS + does not support it.

+

+ Own Id: OTP-13251 Aux Id: ERL-49

+ + +

+ gen_tcp:accept/2 + was not time + warp safe. This since it used the same time as + returned by erlang:now/0 + when calculating timeout. This has now been fixed.

+

+ Own Id: OTP-13254 Aux Id: OTP-11997, OTP-13222

+ + +

+ Fix faulty error handling when writing to a compressed + file.

+

+ Own Id: OTP-13270

+ + +

+ Fix sendfile usage for large files on FreeBSD

+

+ Own Id: OTP-13271

+ + +

+ Fix bug that could cause + process_info(P,current_location) to crash emulator + for hipe compiled modules.

+

+ Own Id: OTP-13282 Aux Id: ERL-79

+ + +

+ Out of memory errors have been changed to cause an exit + instead of abort.

+

+ Own Id: OTP-13292

+ + +

+ When calling garbage_collect/[1,2] or + check_process_code/[2,3] from a process with a + higher priority than the priority of the process operated + on, the run queues could end up in an inconsistent state. + This bug has now been fixed.

+

+ Own Id: OTP-13298 Aux Id: OTP-11388

+ + +

+ A workaround for an issue with older gcc versions (less + than 5) and inline assembly on 32-bit x86 caused an + emulator crash when it had been compiled with a newer gcc + version. An improved configure test, run when + building OTP, now detects whether the workaround should + be used or not.

+

+ Own Id: OTP-13326 Aux Id: ERL-80

+ + +
+ + +
Improvements and New Features + + +

Introduced new statistics functionality in order to + more efficiently retrieve information about run able and + active processes and ports. For more information see:

+ statistics(total_run_queue_lengths) + statistics(run_queue_lengths) + statistics(total_active_tasks) + statistics(active_tasks) + +

+ Own Id: OTP-13201

+ + +

+ Time warp safety improvements.

+

+ Introduced the options monotonic_timestamp, and + strict_monotonic_timestamp to the trace, + sequential trace, and system profile functionality. This + since the already existing timestamp option is not + time warp safe.

+

+ Introduced the option safe_fixed_monotonic_time to + ets:info/2 and dets:info/2. This since the + already existing safe_fixed option is not time + warp safe.

+

+ Own Id: OTP-13222 Aux Id: OTP-11997

+ + +

+ Fix a register race where down nodes goes undetected in + epmd

+

+ Own Id: OTP-13301

+ + +

+ Improved the gcc inline assembly implementing double word + atomic compare and exchange on x86/x86_64 so that it also + can be used when compiling with clang.

+

+ Own Id: OTP-13336

+ + +

+ An optimization preventing a long wait for a scheduler + thread looking up information about a process executing + on another scheduler thread had unintentionally been lost + in erts-5.10 (OTP R16A). This optimization has now been + reintroduced.

+

+ Own Id: OTP-13365 Aux Id: OTP-9892

+ + +
+ +
+
Erts 7.2.1
Fixed Bugs and Malfunctions -- cgit v1.2.3