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author	Neil Schemenauer <nas-github@arctrix.com>
	Wed, 28 May 2025 01:27:41 +0000 (18:27 -0700)
committer	GitHub <noreply@github.com>
	Wed, 28 May 2025 01:27:41 +0000 (18:27 -0700)
commit	fbbbc10055e0ee0011cf683132be706815480839
tree	7c10250ec0564196d4cdfcb79a1d59895639999f	tree \| snapshot
parent	7ca6d79fa32d7203ee8d64f47b6b3539a027fdea	commit \| diff

gh-127266: avoid data races when updating type slots (gh-133177)

In the free-threaded build, avoid data races caused by updating type
slots or type flags after the type was initially created. For those
(typically rare) cases, use the stop-the-world mechanism. Remove the
use of atomics when reading or writing type flags.

Include/internal/pycore_interp_structs.h		diff \| blob \| blame \| history
Include/internal/pycore_object.h		diff \| blob \| blame \| history
Include/internal/pycore_typeobject.h		diff \| blob \| blame \| history
Include/object.h		diff \| blob \| blame \| history
Include/refcount.h		diff \| blob \| blame \| history
Lib/test/test_descr.py		diff \| blob \| blame \| history
Misc/NEWS.d/next/Core_and_Builtins/2025-03-14-13-08-20.gh-issue-127266._tyfBp.rst	[new file with mode: 0644]	blob
Objects/typeobject.c		diff \| blob \| blame \| history
Python/ceval.c		diff \| blob \| blame \| history
Tools/tsan/suppressions_free_threading.txt		diff \| blob \| blame \| history

Mirror of https://github.com/python/cpython.git

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