STINNER Victor <vstin...@python.org> added the comment: The change added a new functional test. As I expected, it failed on "AMD64 Debian root". I expected it because the previously added functional test failed failed on "AMD64 Debian root", I reported the race condition in 2017 and it's still not fixed: bpo-30849.
The new functional test has two race conditions. I reopen the issue. == Race condition 1 == AMD64 Debian root 3.x: https://buildbot.python.org/all/#/builders/345/builds/903 0:15:05 load avg: 2.58 [137/427/1] test_signal failed (env changed) (1 min 13 sec) Warning -- Unraisable exception Traceback (most recent call last): File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/threading.py", line 1067, in _wait_for_tstate_lock elif lock.acquire(block, timeout): OSError: Signal 10 ignored due to race condition == Race condition 2 == By the way, the test also fails when I stress my laptop: $ ./python -m test --fail-env-changed test_signal -F -j40 -m test_stress_modifying_handlers -v == CPython 3.10.0a6+ (heads/master:a9c03d7fb7, Mar 10 2021, 12:41:26) [GCC 10.2.1 20201125 (Red Hat 10.2.1-9)] == Linux-5.10.15-200.fc33.x86_64-x86_64-with-glibc2.32 little-endian == cwd: /home/vstinner/python/master/build/test_python_223315æ == CPU count: 8 == encodings: locale=UTF-8, FS=utf-8 0:00:00 load avg: 4.17 Run tests in parallel using 40 child processes (...) 0:00:05 load avg: 7.52 [ 5/1] test_signal failed test_stress_modifying_handlers (test.test_signal.StressTest) ... FAIL ====================================================================== FAIL: test_stress_modifying_handlers (test.test_signal.StressTest) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/vstinner/python/master/Lib/test/test_signal.py", line 1297, in test_stress_modifying_handlers self.assertGreater(num_received_signals, 0) AssertionError: 0 not greater than 0 ---------------------------------------------------------------------- Ran 1 test in 0.039s FAILED (failures=1) test test_signal failed (...) ---------- nosy: +vstinner resolution: fixed -> status: closed -> open _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue43406> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com