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Title: [3.11] gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275) by miss-islington · Pull Request #108378 · python/cpython · GitHub

Open Graph Title: [3.11] gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275) by miss-islington · Pull Request #108378 · python/cpython

X Title: [3.11] gh-77377: Ensure multiprocessing SemLock is valid for spawn-based Process before serializing it (GH-107275) by miss-islington · Pull Request #108378 · python/cpython

Description: 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...

Open Graph Description: 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...

X Description: 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...

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multiprocessing: serialization must ensure that contexts are compatible (the same) #77377https://github.com/python/cpython/issues/77377
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"Spawn" locks and semaphores are crashing during pickling in correct "spawn" process launch. #125738 https://github.com/python/cpython/issues/125738
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