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Title: gh-124375: Avoid calling `_PyMem_ProcessDelayed` on other thread states by colesbury · Pull Request #124459 · python/cpython · GitHub

Open Graph Title: gh-124375: Avoid calling `_PyMem_ProcessDelayed` on other thread states by colesbury · Pull Request #124459 · python/cpython

X Title: gh-124375: Avoid calling `_PyMem_ProcessDelayed` on other thread states by colesbury · Pull Request #124459 · python/cpython

Description: This fixes a crash when running the PyO3 test suite on the free-threaded build. The qsbr field is initialized after the PyThreadState is added to the interpreter's linked list -- it might still be NULL. Instead, we "steal" the queue of to-be-freed memory blocks. This is always initialized (possibly empty) and protected by the stop the world pause. Issue: gh-124375

Open Graph Description: This fixes a crash when running the PyO3 test suite on the free-threaded build. The qsbr field is initialized after the PyThreadState is added to the interpreter's linked list -- it might still...

X Description: This fixes a crash when running the PyO3 test suite on the free-threaded build. The qsbr field is initialized after the PyThreadState is added to the interpreter's linked list -- it might s...

Opengraph URL: https://github.com/python/cpython/pull/124459

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