New submission from Quentin Pradet <quentin.pra...@gmail.com>:
Since https://github.com/python/cpython/commit/32a67246b0d1e08cd50fc3bfa58052cfeb515b2e which was introduced through https://bugs.python.org/issue46008 and shipped as part of alpha 3, the urllib3 test suite reliably crashes on Fedora 35 (ie. gives a segfault). I've narrowed the reproducer code down to https://github.com/pquentin/urllib3/blob/segfault/test/test_reproduce.py, but that still requires cffi, pyOpenSSL and Tornado. The segfault either happens in the `ssl` module or the `selectors` module: ``` ================================================= test session starts ================================================= platform linux -- Python 3.11.0a2+, pytest-6.2.5, py-1.11.0, pluggy-1.0.0 rootdir: /home/q/pub/urllib3, configfile: setup.cfg collected 1 item test/test_reproduce.py Fatal Python error: Segmentation fault Thread 0x00007fee9a250640 (most recent call first): File "/home/q/pub/install/lib/python3.11/ssl.py", line 1346 in do_handshake File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 1391 in _do_ssl_handshake File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 1478 in _handle_read File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 696 in _handle_events File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/platform/asyncio.py", line 189 in _handle_events File "/home/q/pub/install/lib/python3.11/asyncio/events.py", line 80 in _run File "/home/q/pub/install/lib/python3.11/asyncio/base_events.py", line 1858 in _run_once File "/home/q/pub/install/lib/python3.11/asyncio/base_events.py", line 591 in run_forever File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/platform/asyncio.py", line 199 in start File "/home/q/pub/install/lib/python3.11/threading.py", line 968 in run File "/home/q/pub/install/lib/python3.11/threading.py", line 1031 in _bootstrap_inner File "/home/q/pub/install/lib/python3.11/threading.py", line 988 in _bootstrap Extension modules: tornado.speedups, _brotli, _cffi_backend (total: 3) zsh: segmentation fault (core dumped) pytest ``` ``` ================================================= test session starts ================================================= platform linux -- Python 3.11.0a2+, pytest-6.2.5, py-1.11.0, pluggy-1.0.0 rootdir: /home/q/pub/urllib3, configfile: setup.cfg collected 1 item test/test_reproduce.py Fatal Python error: Segmentation fault Thread 0x00007fee9a250640 (most recent call first): File "/home/q/pub/install/lib/python3.11/ssl.py", line 1346 in do_handshake File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 1391 in _do_ssl_handshake File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 1478 in _handle_read File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/iostream.py", line 696 in _handle_events File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/platform/asyncio.py", line 189 in _handle_events File "/home/q/pub/install/lib/python3.11/asyncio/events.py", line 80 in _run File "/home/q/pub/install/lib/python3.11/asyncio/base_events.py", line 1858 in _run_once File "/home/q/pub/install/lib/python3.11/asyncio/base_events.py", line 591 in run_forever File "/home/q/pub/urllib3/venv/lib/python3.11/site-packages/tornado/platform/asyncio.py", line 199 in start File "/home/q/pub/install/lib/python3.11/threading.py", line 968 in run File "/home/q/pub/install/lib/python3.11/threading.py", line 1031 in _bootstrap_inner File "/home/q/pub/install/lib/python3.11/threading.py", line 988 in _bootstrap Extension modules: tornado.speedups, _brotli, _cffi_backend (total: 3) zsh: segmentation fault (core dumped) pytest ``` I can work on a better reproducer, but thought this was already interesting as https://github.com/python/cpython/pull/29977 states there should have been zero change in behavior. ---------- components: Interpreter Core messages: 410166 nosy: Quentin.Pradet, SethMichaelLarson, eric.snow priority: normal severity: normal status: open title: runtime/interp/thread state refactoring leads to segmentation fault type: crash versions: Python 3.11 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46320> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
