Patch Package OTP 22.3.4.11 Released

Erlang/OTP otp@REDACTED
Fri Oct 2 16:39:30 CEST 2020


Patch Package:           OTP 22.3.4.11
Git Tag:                 OTP-22.3.4.11
Date:                    2020-10-02
Trouble Report Id:       OTP-16815, OTP-16847, OTP-16856, OTP-16866,
                         OTP-16870, OTP-16874, OTP-16904, OTP-16906
Seq num:                 ERIERL-500, ERIERL-532, ERL-1301, ERL-1355,
                         ERL-1356
System:                  OTP
Release:                 22
Application:             erts-10.7.2.4, mnesia-4.16.3.1,
                         os_mon-2.5.1.1, ssh-4.9.1.2
Predecessor:             OTP 22.3.4.10

 Check out the git tag OTP-22.3.4.11, and build a full OTP system
 including documentation. Apply one or more applications from this
 build as patches to your installation using the 'otp_patch_apply'
 tool. For information on install requirements, see descriptions for
 each application version below.

 ---------------------------------------------------------------------
 --- erts-10.7.2.4 ---------------------------------------------------
 ---------------------------------------------------------------------

 Note! The erts-10.7.2.4 application *cannot* be applied independently
       of other applications on an arbitrary OTP 22 installation.

       On a full OTP 22 installation, also the following runtime
       dependency has to be satisfied:
       -- kernel-6.5.1 (first satisfied in OTP 22.2)


 --- Fixed Bugs and Malfunctions ---

  OTP-16847    Application(s): erts
               Related Id(s): ERL-1301

               inet:setopts([{active,once}]) wakes up IO polling
               thread unnecessarily, leading to lock contention and
               visibly higher CPU utilization.


  OTP-16866    Application(s): erts
               Related Id(s): ERL-1355

               The documentation of statistics(run_queue) erroneously
               stated that it returns the total length of all normal
               run queues when it is the total length of all normal
               and dirty CPU run queues that is returned. The
               documentation has been updated to reflect the actual
               behavior.


  OTP-16870    Application(s): erts

               Two bugs in the ERTS internal thread wakeup
               functionality have been fixed. These bugs mainly hit
               when all threads in the system tried to go to sleep.
               When the bugs were triggered, certain operations were
               delayed until a thread woke up due to some other
               reason. Most important operations effected were code
               loading, persistent term updates, and memory
               deallocation.


  OTP-16874    Application(s): erts
               Related Id(s): ERL-1356, PR-2763

               Fixed bug in ets:select_replace/2 on compressed tables
               that could produce faulty results or VM crash. Bug
               exists since OTP 20.


 --- Improvements and New Features ---

  OTP-16856    Application(s): erts

               As of OTP 22, the allocator specific memory carrier
               pools were replaced by a node global carrier pool. This
               unfortunately caused substantial memory fragmentation
               in some cases due to long lived data being spread into
               carriers used by allocators mainly handling short lived
               data.

               A new command line argument +M<S>cp has been introduced
               with which one can enable the old behavior as well as
               configuring other behaviors for the carrier pools. In
               order to configure the old behavior, with allocator
               specific carrier pools for all allocators, pass +Mucp :
               (including the colon character) as a command line
               argument to erl when starting the Erlang system.

               The default configuration for carrier pools will be
               changed to +Mucp : some time in the future, but not in
               this patch.


 Full runtime dependencies of erts-10.7.2.4: kernel-6.5.1, sasl-3.3,
 stdlib-3.5


 ---------------------------------------------------------------------
 --- mnesia-4.16.3.1 -------------------------------------------------
 ---------------------------------------------------------------------

 The mnesia-4.16.3.1 application can be applied independently of other
 applications on a full OTP 22 installation.

 --- Improvements and New Features ---

  OTP-16815    Application(s): mnesia
               Related Id(s): ERIERL-500

               Fixed crash during startup, which could happen if a
               table was deleted on another node.


 Full runtime dependencies of mnesia-4.16.3.1: erts-9.0, kernel-5.3,
 stdlib-3.4


 ---------------------------------------------------------------------
 --- os_mon-2.5.1.1 --------------------------------------------------
 ---------------------------------------------------------------------

 The os_mon-2.5.1.1 application can be applied independently of other
 applications on a full OTP 22 installation.

 --- Improvements and New Features ---

  OTP-16906    Application(s): os_mon
               Related Id(s): ERIERL-532

               The configuration parameter
               memsup_improved_system_memory_data has been introduced.
               It can be used to modify the result returned by
               memsup:get_system_memory_data(). For more information
               see the memsup documentation.

               Note that the configuration parameter is intended to be
               removed in OTP 24 and the modified result is intended
               to be used as of OTP 24.


 Full runtime dependencies of os_mon-2.5.1.1: erts-6.0, kernel-3.0,
 sasl-2.4, stdlib-2.0


 ---------------------------------------------------------------------
 --- ssh-4.9.1.2 -----------------------------------------------------
 ---------------------------------------------------------------------

 Note! The ssh-4.9.1.2 application *cannot* be applied independently
       of other applications on an arbitrary OTP 22 installation.

       On a full OTP 22 installation, also the following runtime
       dependency has to be satisfied:
       -- crypto-4.6.4 (first satisfied in OTP 22.2.2)


 --- Fixed Bugs and Malfunctions ---

  OTP-16904    Application(s): ssh

               Fix decoder bug.


 Full runtime dependencies of ssh-4.9.1.2: crypto-4.6.4, erts-9.0,
 kernel-5.3, public_key-1.6.1, stdlib-3.4.1


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