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Patch Package: OTP 21.3.8.16
Git Tag: OTP-21.3.8.16
Date: 2020-05-20
Trouble Report Id: OTP-16639, OTP-16640, OTP-16641, OTP-16642
Seq num: ERL-1236
System: OTP
Release: 21
Application: erts-10.3.5.12
Predecessor: OTP 21.3.8.15
Check out the git tag OTP-21.3.8.16, 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.
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--- erts-10.3.5.12 --------------------------------------------------
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Note! The erts-10.3.5.12 application *cannot* be applied
independently of other applications on an arbitrary OTP 21
installation.
On a full OTP 21 installation, also the following runtime
dependencies have to be satisfied:
-- kernel-6.1 (first satisfied in OTP 21.1)
-- sasl-3.3 (first satisfied in OTP 21.2)
--- Fixed Bugs and Malfunctions ---
OTP-16639 Application(s): erts
Related Id(s): ERL-1236
The functionality utilized by BIFs for temporary
disabling of garbage collection while yielding could
cause system task queues to become inconsistent on a
process executing such a BIF. Process system tasks are
for example utilized when purging code, garbage
collecting literal data, and when issuing an ordinary
garbage collection from another process.
The bug does not trigger frequently. Multiple code
purges in direct sequence makes it more likely that
this bug is triggered. In the cases observed, this has
resulted in a hanging code purge operation.
OTP-16640 Application(s): erts
Related Id(s): OTP-16193
A literal area could prematurely be released before all
uses of it had been removed. This occurred either when
a terminating process had a complex exit reason
referring to a literal that concurrently was removed,
or when a terminating process continued executing a
dirty NIF accessing a literal (via the heap) that
concurrently was removed.
OTP-16641 Application(s): erts
The VM could potentially crash when checking process
code of a process that terminated while executing a
dirty NIF. The checking of process code is part of a
code purge operation.
OTP-16642 Application(s): erts
System tasks of low priority were not interleaved with
normal priority system tasks as they should. This could
potentially delay garbage collection of another process
longer than intended if the garbage collection was
requested from a low priority process.
Full runtime dependencies of erts-10.3.5.12: kernel-6.1, sasl-3.3,
stdlib-3.5
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