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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[subinterpreters] crash when importing _sre in subinterpreters in parallel (Python 3.9 regression)","articleBody":"BPO | [46070](https://bugs.python.org/issue46070)\n--- | :---\nNosy | @vstinner, @encukou, @ericsnowcurrently, @ndjensen, @hroncok, @uckelman, @corona10, @miss-islington, @shihai1991, @erlend-aasland, @bsteffensmeier, @M-Reimer, @prahal\nPRs | \u003cli\u003epython/cpython#30423\u003c/li\u003e\u003cli\u003epython/cpython#30453\u003c/li\u003e\u003cli\u003epython/cpython#30454\u003c/li\u003e\u003cli\u003epython/cpython#30564\u003c/li\u003e\u003cli\u003epython/cpython#30565\u003c/li\u003e\u003cli\u003epython/cpython#30566\u003c/li\u003e\u003cli\u003epython/cpython#30577\u003c/li\u003e\u003cli\u003epython/cpython#30578\u003c/li\u003e\u003cli\u003epython/cpython#30579\u003c/li\u003e\u003cli\u003epython/cpython#30580\u003c/li\u003e\nFiles | \u003cli\u003e[win_py399_crash_reproducer.py](https://bugs.python.org/file50494/win_py399_crash_reproducer.py \"Uploaded as text/plain at 2021-12-15.18:35:10 by @bsteffensmeier\"): Reproducer that intermittently crashes on windows\u003c/li\u003e\u003cli\u003e[bug.py](https://bugs.python.org/file50497/bug.py \"Uploaded as text/plain at 2021-12-16.00:40:46 by @vstinner\")\u003c/li\u003e\u003cli\u003e[pyobject_ob_interp.patch](https://bugs.python.org/file50560/pyobject_ob_interp.patch \"Uploaded as text/plain at 2022-01-13.20:24:18 by @vstinner\")\u003c/li\u003e\u003cli\u003e[sqlite3_crash.py](https://bugs.python.org/file50699/sqlite3_crash.py \"Uploaded as text/plain at 2022-03-24.16:27:15 by @prahal\"): Reproducer that crashes 90% of the time\u003c/li\u003e\u003cli\u003e[bug.py_asyncio_cpustressed-crash.log](https://bugs.python.org/file50700/bug.py_asyncio_cpustressed-crash.log \"Uploaded as text/x-log at 2022-03-24.21:16:20 by @prahal\"): asyncio bug.py crash while running stress -c `nproc --all`\u003c/li\u003e\n\n\u003csup\u003e*Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.*\u003c/sup\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShow more details\u003c/summary\u003e\u003cp\u003e\n\nGitHub fields:\n```python\nassignee = None\nclosed_at = None\ncreated_at = \u003cDate 2021-12-14.10:57:50.149\u003e\nlabels = ['interpreter-core', 'type-bug', '3.9', '3.10', '3.11', 'expert-subinterpreters']\ntitle = '[subinterpreters] crash when importing _sre in subinterpreters in parallel (Python 3.9 regression)'\nupdated_at = \u003cDate 2022-03-24.21:16:20.771\u003e\nuser = 'https://bugs.python.org/graysky'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2022-03-24.21:16:20.771\u003e\nactor = 'prahal'\nassignee = 'none'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['Interpreter Core', 'Subinterpreters']\ncreation = \u003cDate 2021-12-14.10:57:50.149\u003e\ncreator = 'graysky'\ndependencies = []\nfiles = ['50494', '50497', '50560', '50699', '50700']\nhgrepos = []\nissue_num = 46070\nkeywords = ['patch']\nmessage_count = 54.0\nmessages = ['408520', '408539', '408540', '408541', '408558', '408568', '408633', '408662', '408664', '408665', '409245', '409255', '409461', '409573', '409686', '409772', '409778', '409780', '409795', '409798', '409802', '409962', '409965', '409966', '409970', '409980', '409983', '409984', '409991', '410010', '410014', '410442', '410444', '410446', '410447', '410493', '410497', '410498', '410500', '410505', '410507', '410509', '410510', '410513', '410517', '410518', '410520', '415954', '415955', '415963', '415964', '415970', '415975', '415977']\nnosy_count = 15.0\nnosy_names = ['vstinner', 'petr.viktorin', 'eric.snow', 'ndjensen', 'hroncok', 'uckelman', 'corona10', 'miss-islington', 'shihai1991', 'erlendaasland', 'graysky', 'bsteffensmeier', 'M-Reimer', 'jokot3', 'prahal']\npr_nums = ['30423', '30453', '30454', '30564', '30565', '30566', '30577', '30578', '30579', '30580']\npriority = 'normal'\nresolution = None\nstage = 'patch review'\nstatus = 'open'\nsuperseder = None\ntype = 'behavior'\nurl = 'https://bugs.python.org/issue46070'\nversions = ['Python 3.9', 'Python 3.10', 'Python 3.11']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/graysky","@type":"Person","name":"graysky"},"datePublished":"2021-12-14T10:57:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":60},"url":"https://github.com/90228/cpython/issues/90228"}