René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_concurrent_futures.test_deadlock: test_crash_big_data() hangs randomly on Windows","articleBody":"GHA Windows x86 job, test_crash_big_data() hangs on ``ProcessPoolExecutor.shutdown()``: https://github.com/python/cpython/actions/runs/5651960914/job/15310873235?pr=107217\r\n\r\n* Main thread: ``ProcessPoolExecutor.shutdown()``\r\n* Thread 2: ``Threading.join()``\r\n* Thread 3: queue ``_feed()`` =\u003e connection ``send_bytes()``\r\n\r\n```\r\n(...)\r\n0:39:52 load avg: 0.06 running: test_concurrent_futures (19 min 2 sec)\r\n0:40:22 load avg: 0.05 running: test_concurrent_futures (19 min 32 sec)\r\n0:40:51 load avg: 0.03 [447/447/2] test_concurrent_futures crashed (Exit code 1)\r\nTimeout (0:20:00)!\r\nThread 0x000007e8 (most recent call first):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\multiprocessing\\connection.py\", line 282 in _send_bytes\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\multiprocessing\\connection.py\", line 199 in send_bytes\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\multiprocessing\\queues.py\", line 246 in _feed\r\n  (...)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1009 in _bootstrap\r\n\r\nThread 0x00001738 (most recent call first):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1146 in _wait_for_tstate_lock\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1126 in join\r\n  (...)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1009 in _bootstrap\r\n\r\nThread 0x0000103c (most recent call first):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1146 in _wait_for_tstate_lock\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 1126 in join\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\concurrent\\futures\\process.py\", line 836 in shutdown\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\concurrent\\futures\\_base.py\", line 647 in __exit__\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\test_concurrent_futures.py\", line 1386 in test_crash_big_data\r\n  (...)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\support\\__init__.py\", line 1241 in run_unittest\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\libregrtest\\runtest.py\", line 294 in _test_module\r\n  (...)\r\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-108974\n* gh-109244\n* gh-109254\n* gh-109255\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2023-07-25T03:23:08.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":24},"url":"https://github.com/107219/cpython/issues/107219"}