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author	Sam Gross <colesbury@gmail.com>
	Tue, 29 Jul 2025 14:25:32 +0000 (10:25 -0400)
committer	GitHub <noreply@github.com>
	Tue, 29 Jul 2025 14:25:32 +0000 (14:25 +0000)
commit	11a8652e25341e696b06d8dc7a18e8c3ee8059e4
tree	69f3dbf38b21559a37c6888585e15bc6b9dcc511	tree \| snapshot
parent	d7e12a362a2a4a4b7d52a343ab5940be2cbcc909	commit \| diff

gh-137185: Fix `_Py_DumpStack()` async signal safety (gh-137187)

Call backtrace() once when installing the signal handler to ensure that
libgcc is dynamically loaded outside the signal handler.

This fixes a "signal-unsafe call inside of a signal" TSan error from
test_faulthandler.test_enable_fd.

Include/internal/pycore_traceback.h		diff \| blob \| blame \| history
Misc/NEWS.d/next/Library/2025-07-28-20-48-32.gh-issue-137185.fgI7-B.rst	[new file with mode: 0644]	blob
Modules/faulthandler.c		diff \| blob \| blame \| history
Python/traceback.c		diff \| blob \| blame \| history

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