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GeezerVison is showing github.com — [3.12] gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275) by miss-islington · Pull Request #108377 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Aug 23, 2023 •
edited by bedevere-bot
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Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

(cherry picked from commit 1700d34)

Co-authored-by: albanD [email protected]
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou [email protected]

  • Issue: multiprocessing: serialization must ensure that contexts are compatible (the same) #77377

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@albanD @blurb-it
@pitrou @miss-islington
pythongh-77377: Ensure multiprocessing SemLock is valid for spawn-bas…
53476dd 
…ed Process before serializing it (pythonGH-107275)

Ensure multiprocessing SemLock is valid for spawn Process before serializing it.

Creating a multiprocessing SemLock with a fork context, and then trying to pass it to a spawn-created Process, would segfault if not detected early.

---------

(cherry picked from commit 1700d34)

Co-authored-by: albanD <[email protected]>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou <[email protected]>
This was referenced Aug 23, 2023
multiprocessing: serialization must ensure that contexts are compatible (the same) #77377
Closed
gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it #107275
Merged
@bedevere-bot bedevere-bot added the awaiting review label Aug 23, 2023
pitrou
pitrou approved these changes Aug 23, 2023
View reviewed changes
@bedevere-bot bedevere-bot added awaiting merge and removed awaiting review labels Aug 23, 2023
@Yhg1s
Yhg1s merged commit 9cf49aa into python:3.12 Aug 23, 2023
@bedevere-bot bedevere-bot removed the awaiting merge label Aug 23, 2023
@miss-islington
miss-islington deleted the backport-1700d34-3.12 branch August 23, 2023 23:44
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5 participants

@miss-islington @pitrou @Yhg1s @bedevere-bot @albanD
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