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Title: gh-151646: Fix data race between gc.get_stats() and GC in free-threading builds by zangjiucheng · Pull Request #151766 · python/cpython · GitHub

Open Graph Title: gh-151646: Fix data race between gc.get_stats() and GC in free-threading builds by zangjiucheng · Pull Request #151766 · python/cpython

X Title: gh-151646: Fix data race between gc.get_stats() and GC in free-threading builds by zangjiucheng · Pull Request #151766 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: In free-threading builds, gc_get_stats_impl() reads per-generation stats with plain struct copies while gc_collect_main() writes the same fields after _Py_StartTheWorld() — no synchronisation on ei...

X Description: In free-threading builds, gc_get_stats_impl() reads per-generation stats with plain struct copies while gc_collect_main() writes the same fields after _Py_StartTheWorld() — no synchronisation on ei...

Opengraph URL: https://github.com/python/cpython/pull/151766

X: @github

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Fix data race in free-threading builds between gc.get_stats() and garbage collectionhttps://github.com/python/cpython/pull/151766/commits/47cfd29848271a8d379959d879d9e03b7b3a1765
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gh-151646: Lighten gc.get_stats race test and trim mutex commentshttps://github.com/python/cpython/pull/151766/commits/08a114aef1d12927ec80f4d57511bda6b0f84ad5
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