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GeezerVison is showing github.com — gh-98178: syslog() is not thread-safe on macOS by vstinner · Pull Request #98213 · python/cpython

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@vstinner

@vstinner vstinner commented Oct 12, 2022 •
edited by bedevere-bot
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On macOS, fix a crash in syslog.syslog() in multi-threaded applications. On macOS, the libc syslog() function is not thread-safe, so syslog.syslog() no longer releases the GIL to call it.

  • Issue: test_syslog: test_syslog_threaded() crashs randomly on ARM64 macOS 3.x #98178

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@vstinner
gh-98178: syslog() is not thread-safe on macOS
897ecfa 
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
@bedevere-bot bedevere-bot added the awaiting core review label Oct 12, 2022
@vstinner vstinner added needs backport to 3.10 needs backport to 3.11 only security fixes labels Oct 12, 2022
@vstinner vstinner mentioned this pull request Oct 12, 2022
test_syslog: test_syslog_threaded() crashs randomly on ARM64 macOS 3.x #98178
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@corona10
corona10 requested review from a team and corona10 and removed request for corona10 October 12, 2022 12:07
@vstinner

vstinner commented Oct 13, 2022

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@ronaldoussoren @ambv @pablogsal: Would you mind to review/approve this PR?

According to Pablo, it does fix the buildbot: #98178 (comment)
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@ambv
ambv merged commit d4b9166 into python:main Oct 13, 2022
@miss-islington

miss-islington commented Oct 13, 2022

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Thanks @vstinner for the PR, and @ambv for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11.
🐍🍒⛏🤖 I'm not a witch! I'm not a witch!
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@bedevere-bot bedevere-bot removed the awaiting core review label Oct 13, 2022
@bedevere-bot

bedevere-bot commented Oct 13, 2022

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GH-98237 is a backport of this pull request to the 3.11 branch.
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@bedevere-bot bedevere-bot removed the needs backport to 3.11 only security fixes label Oct 13, 2022
@bedevere-bot

bedevere-bot commented Oct 13, 2022

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GH-98238 is a backport of this pull request to the 3.10 branch.
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@bedevere-bot bedevere-bot removed the needs backport to 3.10 label Oct 13, 2022
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Oct 13, 2022
@vstinner @miss-islington
pythongh-98178: syslog() is not thread-safe on macOS (pythonGH-98213)
3ff76b3 
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
(cherry picked from commit d4b9166)

Co-authored-by: Victor Stinner <[email protected]>
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Oct 13, 2022
@vstinner @miss-islington
pythongh-98178: syslog() is not thread-safe on macOS (pythonGH-98213)
7f51171 
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
(cherry picked from commit d4b9166)

Co-authored-by: Victor Stinner <[email protected]>
miss-islington added a commit that referenced this pull request Oct 13, 2022
@miss-islington @vstinner
gh-98178: syslog() is not thread-safe on macOS (GH-98213)
c7761bb 
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
(cherry picked from commit d4b9166)

Co-authored-by: Victor Stinner <[email protected]>
miss-islington added a commit that referenced this pull request Oct 13, 2022
@miss-islington @vstinner
gh-98178: syslog() is not thread-safe on macOS (GH-98213)
c766242 
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
(cherry picked from commit d4b9166)

Co-authored-by: Victor Stinner <[email protected]>
carljm added a commit to carljm/cpython that referenced this pull request Oct 14, 2022
@carljm
Merge branch 'main' into typewatch
6e53514 
* main: (38 commits)
  pythongh-98251: Allow venv to pass along PYTHON* variables to pip and ensurepip when they do not impact path resolution (pythonGH-98259)
  Bpo-41246: IOCP Proactor avoid callback code duplication (python#21399)
  bpo-46364: Use sockets for stdin of asyncio only on AIX (python#30596)
  pythongh-98178: syslog() is not thread-safe on macOS (python#98213)
  Mark all targets in `Doc/Makefile` as `PHONY` (pythonGH-98189)
  pythongh-97982: Factorize PyUnicode_Count() and unicode_count() code (python#98025)
  pythongh-96265: Formatting changes for faq/general (python#98129)
  tutorial: remove "with single quotes" (python#98204)
  pythongh-97669: Remove Tools/scripts/startuptime.py (python#98214)
  signalmodule.c uses _PyErr_WriteUnraisableMsg() (python#98217)
  pythongh-97669: Fix test_tools reference leak (python#98216)
  pythongh-97669: Create Tools/patchcheck/ directory (python#98186)
  pythongh-65046: Link to logging cookbook from asyncio docs (python#98207)
  Formatting fixes in contextlib docs (python#98111)
  pythongh-95276: Add callable entry to the glossary (python#95738)
  pythongh-96130: Rephrase use of "typecheck" verb for clarity (python#98144)
  Fix some incorrect indentation around the main switch (python#98177)
  pythongh-98172: Fix formatting in `except*` docs (python#98173)
  pythongh-97982: Remove asciilib_count() (python#98164)
  pythongh-95756: Free and NULL-out code caches when needed (pythonGH-98181)
  ...
carljm added a commit to carljm/cpython that referenced this pull request Oct 14, 2022
@carljm
Merge branch 'main' into cached_property
0bb0c69 
* main: (37 commits)
  pythongh-98251: Allow venv to pass along PYTHON* variables to pip and ensurepip when they do not impact path resolution (pythonGH-98259)
  Bpo-41246: IOCP Proactor avoid callback code duplication (python#21399)
  bpo-46364: Use sockets for stdin of asyncio only on AIX (python#30596)
  pythongh-98178: syslog() is not thread-safe on macOS (python#98213)
  Mark all targets in `Doc/Makefile` as `PHONY` (pythonGH-98189)
  pythongh-97982: Factorize PyUnicode_Count() and unicode_count() code (python#98025)
  pythongh-96265: Formatting changes for faq/general (python#98129)
  tutorial: remove "with single quotes" (python#98204)
  pythongh-97669: Remove Tools/scripts/startuptime.py (python#98214)
  signalmodule.c uses _PyErr_WriteUnraisableMsg() (python#98217)
  pythongh-97669: Fix test_tools reference leak (python#98216)
  pythongh-97669: Create Tools/patchcheck/ directory (python#98186)
  pythongh-65046: Link to logging cookbook from asyncio docs (python#98207)
  Formatting fixes in contextlib docs (python#98111)
  pythongh-95276: Add callable entry to the glossary (python#95738)
  pythongh-96130: Rephrase use of "typecheck" verb for clarity (python#98144)
  Fix some incorrect indentation around the main switch (python#98177)
  pythongh-98172: Fix formatting in `except*` docs (python#98173)
  pythongh-97982: Remove asciilib_count() (python#98164)
  pythongh-95756: Free and NULL-out code caches when needed (pythonGH-98181)
  ...
@vstinner
vstinner deleted the syslog branch December 13, 2022 15:25
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4 participants

@vstinner @miss-islington @bedevere-bot @ambv
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