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[3.11]GH-112275: Fix HEAD_LOCK deadlock in child process after fork - #112336
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HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork.
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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@ambv I'm not sure this warrants a backport to security-only branches. |
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Crashes and denial of service (like a dead lock) can be treated as security-adjacent fixes. I've been allowing those for my releases. |
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Thanks @ChuBoning for the PR, and @ambv for merging it 🌮🎉.. I'm working now to backport this PR to: 3.8, 3.9, 3.10. |
…fork (pythonGH-112336) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
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Sorry, @ChuBoning and @ambv, I could not cleanly backport this to |
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GH-123687 is a backport of this pull request to the 3.10 branch. |
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Sorry, @ChuBoning and @ambv, I could not cleanly backport this to |
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I'll make the 3.8 and 3.9 backports manually. |
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GH-123687 is a backport of this pull request to the 3.10 branch. |
…after fork (pythonGH-112336) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
…H-112336) (#123687) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
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GH-123688 is a backport of this pull request to the 3.9 branch. |
…H-112336) (#123688) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com>
…fork (pythonGH-112336) (pythonGH-123688) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) (cherry picked from commit 0152431) Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com>
…H-112336) (GH-123688) (#123713) HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork. (cherry picked from commit 522799a) (cherry picked from commit 0152431) Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: ChuBoning <102216855+ChuBoning@users.noreply.github.com>
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HEAD_LOCK is called from _PyEval_ReInitThreads->_PyThreadState_DeleteExcept before _PyRuntimeState_ReInitThreads reinit runtime->interpreters.mutex which might be locked before fork.