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Title: gh-126688: Support Fork Parent and Child With Different Thread ID by ericsnowcurrently · Pull Request #127121 · python/cpython · GitHub

Open Graph Title: gh-126688: Support Fork Parent and Child With Different Thread ID by ericsnowcurrently · Pull Request #127121 · python/cpython

X Title: gh-126688: Support Fork Parent and Child With Different Thread ID by ericsnowcurrently · Pull Request #127121 · python/cpython

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Open Graph Description: gh-126692 took care of one situation where we were assuming the thread ID did not change across fork. However, there is at least one other, in PyOS_AfterFork_Child(). This PR addresses that case ...

X Description: gh-126692 took care of one situation where we were assuming the thread ID did not change across fork. However, there is at least one other, in PyOS_AfterFork_Child(). This PR addresses that case ...

Opengraph URL: https://github.com/python/cpython/pull/127121

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og:image:altgh-126692 took care of one situation where we were assuming the thread ID did not change across fork. However, there is at least one other, in PyOS_AfterFork_Child(). This PR addresses that case ...
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CPython should not assume that pthread_self returns the same value in fork parent and child #126688https://github.com/python/cpython/issues/126688
Please reload this pagehttps://github.com/python/cpython/pull/127121
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November 21, 2024 13:38https://github.com/python/cpython/pull/127121#commits-pushed-20a9bd6
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Hold a global lock while forking.https://github.com/python/cpython/pull/127121/commits/20a9bd64d0d6c5221f93e54e4dc51d4e1e77bfdb
20a9bd6https://github.com/python/cpython/pull/127121/commits/20a9bd64d0d6c5221f93e54e4dc51d4e1e77bfdb
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Keep track of the parent thread ID.https://github.com/python/cpython/pull/127121/commits/259e3c672acc97a7a023f9123bc721dd5ea7879c
259e3c6https://github.com/python/cpython/pull/127121/commits/259e3c672acc97a7a023f9123bc721dd5ea7879c
https://github.com/ericsnowcurrently
Update the tstate thread ID if necessary.https://github.com/python/cpython/pull/127121/commits/8fbd4fc668bca6e1a92e698b8460d34ecb9e40d7
8fbd4fchttps://github.com/python/cpython/pull/127121/commits/8fbd4fc668bca6e1a92e698b8460d34ecb9e40d7
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Add _PyRecursiveMutex_at_fork_reinit().https://github.com/python/cpython/pull/127121/commits/db5271aca354960073e95acef02ba5806e40563f
db5271ahttps://github.com/python/cpython/pull/127121/commits/db5271aca354960073e95acef02ba5806e40563f
https://github.com/ericsnowcurrently
Use _PyRecursiveMutex_at_fork_reinit() in _PyImport_ReInitLock().https://github.com/python/cpython/pull/127121/commits/9e015f8dd425a7ebf0ffc4736359ac3ff16762aa
9e015f8https://github.com/python/cpython/pull/127121/commits/9e015f8dd425a7ebf0ffc4736359ac3ff16762aa
https://github.com/ericsnowcurrently
Call _PyImport_ReInitLock() in _PyRuntimeState_ReInitThreads().https://github.com/python/cpython/pull/127121/commits/2aad2d5db78d0e45574b3a571804b79b12154880
2aad2d5https://github.com/python/cpython/pull/127121/commits/2aad2d5db78d0e45574b3a571804b79b12154880
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Nov 21, 2024 https://github.com/python/cpython/pull/127121#ref-issue-2649681175
CPython should not assume that pthread_self returns the same value in fork parent and child #126688 https://github.com/python/cpython/issues/126688
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Nov 21, 2024 https://github.com/python/cpython/pull/127121#ref-pullrequest-2680427401
gh-114940: Add a Per-Interpreter Lock For the List of Thread States #127115 https://github.com/python/cpython/pull/127115
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