From: Sam Gross <colesbury@gmail.com>
Date: Fri, 28 Feb 2025 14:27:51 +0000 (-0500)
Subject: gh-124878: Add temporary TSAN suppression for free_threadstate (gh-130602)
X-Git-Tag: v3.14.0a6~220
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cc17307faaa248535c65f6a7668e06dc8ef04575;p=thirdparty%2FPython%2Fcpython.git

gh-124878: Add temporary TSAN suppression for free_threadstate (gh-130602)

The race condition with `free_threadstate` and daemon threads exists in
both the free threading and default builds. We were missing a
suppression in the default build.
---

diff --git a/Tools/tsan/suppressions.txt b/Tools/tsan/suppressions.txt
index 6bda5ecd5708..c70b0ddca059 100644
--- a/Tools/tsan/suppressions.txt
+++ b/Tools/tsan/suppressions.txt
@@ -1,5 +1,8 @@
 # This file contains suppressions for the default (with GIL) build.
 # reference: https://github.com/google/sanitizers/wiki/ThreadSanitizerSuppressions
 
+# gh-124878: race condition when interpreter finalized while daemon thread runs
+race:free_threadstate
+
 # https://gist.github.com/mpage/daaf32b39180c1989572957b943eb665
 thread:pthread_create
diff --git a/Tools/tsan/suppressions_free_threading.txt b/Tools/tsan/suppressions_free_threading.txt
index 3354b5756811..c32c43db19cb 100644
--- a/Tools/tsan/suppressions_free_threading.txt
+++ b/Tools/tsan/suppressions_free_threading.txt
@@ -10,7 +10,7 @@
 # These entries are for warnings that trigger in a library function, as called
 # by a CPython function.
 
-# https://gist.github.com/swtaarrs/08dfe7883b4c975c31ecb39388987a67
+# gh-124878: race condition when interpreter finalized while daemon thread runs
 race:free_threadstate
 
 # These warnings trigger directly in a CPython function.