New submission from Gregory Szorc <gregory.sz...@gmail.com>:
Most of CPython's extensions can be initialized and freed multiple times in the same process. However, _asyncio crashes on at least CPython 3.8.2 when this is done. STR: 1. Create a new Python interpreter 2. Have it import _asyncio 3. Finalize that interpreter. 4. Create a new Python interpreter 5. Have it import _asyncio There are probably STR in pure Python by forcing _imp.create_dynamic() to run multiple times after the module is unloaded. The crash occurs due to unchecked NULL access in `Py_INCREF(all_tasks);` in `PyInit__asyncio()`. I think the underlying problem is module_init() is short-circuiting because `module_initialized` is set. And `module_initialized` is set on subsequent module loads because `module_free()` isn't clearing it. ---------- components: asyncio messages: 367483 nosy: asvetlov, indygreg, yselivanov priority: normal severity: normal status: open title: _asyncio extensions crashes if initialized multiple times in same process versions: Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40415> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
