[3.12] gh-89363: Skip threading test_is_alive_after_fork() if ASAN (GH-109835) (#109855)

gh-89363: Skip threading test_is_alive_after_fork() if ASAN (GH-109835)

Skip test_is_alive_after_fork() of test_threading if Python is built
with Address Sanitizer (ASAN).
(cherry picked from commit bc06743533b5fea2d5ecdad6dd3caa372c67439f)

Co-authored-by: Victor Stinner <vstinner@python.org>

2 files changed, 5 insertions, 1 deletions

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index bf5d541..ca8fcab 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -79,7 +79,7 @@ except ImportError:
 
 
 if support.check_sanitizer(address=True):
-    # bpo-45200: Skip multiprocessing tests if Python is built with ASAN to
+    # gh-89363: Skip multiprocessing tests if Python is built with ASAN to
     # work around a libasan race condition: dead lock in pthread_create().
     raise unittest.SkipTest("libasan has a pthread_create() dead lock")
 
diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 9e4972e..1b8019f 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -564,6 +564,10 @@ class ThreadTests(BaseTestCase):
         self.assertEqual(err, b'')
 
     @support.requires_fork()
+    # gh-89363: Skip multiprocessing tests if Python is built with ASAN to
+    # work around a libasan race condition: dead lock in pthread_create().
+    @support.skip_if_sanitizer("libasan has a pthread_create() dead lock",
+                               address=True)
     def test_is_alive_after_fork(self):
         # Try hard to trigger #18418: is_alive() could sometimes be True on
         # threads that vanished after a fork.