Patch Package OTP 25.0.3 Released

[Erlang/OTP]

Patch Package:           OTP 25.0.3
Git Tag:                 OTP-25.0.3
Date:                    2022-07-15
Trouble Report Id:       OTP-18164, OTP-18169, OTP-18170, OTP-18173,
                         OTP-18175, OTP-18177
Seq num:                
System:                  OTP
Release:                 25
Application:             erts-13.0.3, ssl-10.8.3
Predecessor:             OTP 25.0.2

 Check out the git tag OTP-25.0.3, 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-13.0.3 -----------------------------------------------------
 ---------------------------------------------------------------------

 Note! The erts-13.0.3 application *cannot* be applied independently
       of other applications on an arbitrary OTP 25 installation.

       On a full OTP 25 installation, also the following runtime
       dependency has to be satisfied:
       -- kernel-8.4.1 (first satisfied in OTP 25.0.1)


 --- Fixed Bugs and Malfunctions ---

  OTP-18164    Application(s): erts
               Related Id(s): PR-6114

               Distributed exit signals could be lost under the
               following conditions:

               -- An exit signal from a parent process to a child
               process was lost if:

               --- the parent process terminated before the spawn
               request that created the child had completed,

               --- the spawn request set up a link between parent and
               child

               --- the spawn request was distributed, and

               --- the exit reason was larger than one machine word.

               -- Loss of a connection over which a not yet completed
               spawn request was ongoing could cause loss of exit
               signals. Such loss of exit signals was very rare.
               Besides the above described connection loss also the
               following conditions had to be satisfied:

               --- The spawn request that was interrupted by the
               connection loss also had to set up a link between the
               parent process and the child process.

               --- The parent process that issued the spawn request
               also had to be terminating while the spawn request was
               interrupted by the connection loss.

               --- The same parent process also had to have made other
               spawn requests to other nodes than to the node to which
               the connection was lost.

               --- These spawn requests to the other nodes also had to
               set up links.

               --- These spawn requests to the other nodes also had to
               be not yet completed at the time of the connection
               loss. That is, the spawn reply from the child process
               had not yet reached the parent process.

               If all the conditions above were met, exit signals to
               the children spawned due to the above described spawn
               requests to other nodes *could* be lost.

               The above bug also caused a significant memory leak
               when it was triggered since the destruction of the
               parent process never completed.


  OTP-18169    Application(s): erts
               Related Id(s): PR-6134

               A race could cause process_info(Pid, message_queue_len)
               on other processes to return invalid results.


  OTP-18170    Application(s): erts
               Related Id(s): PR-6135

               Fixed reduction counting for handling process system
               tasks.


  OTP-18175    Application(s): erts
               Related Id(s): PR-6142

               Priority elevation of terminating processes did not
               work which could cause execution of such processes to
               be delayed.


  OTP-18177    Application(s): erts
               Related Id(s): PR-6150

               An unlink operation made by a process that terminated
               before the unlink operation completed, i.e., before it
               had received an unlink-ack signal from the linked
               process, caused an exit signal to erroneously be sent
               from the terminating process to the process being
               unlinked. This exit signal would most often be ignored
               by the receiver, but if the receiver of the exit signal
               concurrently set up a new link, it could receive the
               exit signal with the actual exit reason of the
               terminating process instead of a noproc exit reason. It
               is however very hard to detect that this has happened
               and has no obvious negative consequences, so it should
               be considered harmless.

               A distributed unlink-ack signal received by a
               terminating process was also not properly removed which
               could cause a minor memory leak.


 Full runtime dependencies of erts-13.0.3: kernel-8.4.1, sasl-3.3,
 stdlib-4.0


 ---------------------------------------------------------------------
 --- ssl-10.8.3 ------------------------------------------------------
 ---------------------------------------------------------------------

 The ssl-10.8.3 application can be applied independently of other
 applications on a full OTP 25 installation.

 --- Fixed Bugs and Malfunctions ---

  OTP-18173    Application(s): ssl

               The link to crypto:engine_load refered the function
               with wrong arity.


 Full runtime dependencies of ssl-10.8.3: crypto-5.0, erts-10.0,
 inets-5.10.7, kernel-8.4, public_key-1.11.3, runtime_tools-1.15.1,
 stdlib-3.12


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