René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_abc hangs on TSan Parallel Test on Free Threading","articleBody":"# Bug report\n\nJob: https://github.com/python/cpython/actions/runs/27618576478/job/81660859608?pr=151486\n\nPython built with `./configure --config-cache --with-thread-sanitizer --with-pydebug --disable-gil`.\n\nTest logs:\n\n```\nRun ./python -m test --tsan-parallel --parallel-threads=4 -j4 -W\nUsing random seed: 2157163694\n0:00:00 load avg: 2.93 mem: 274.0 MiB Run 2 tests in parallel using 2 worker processes\n0:00:12 load avg: 3.10 mem: 591.6 MiB [1/2] test_hashlib passed\n0:00:42 load avg: 1.88 mem: 591.6 MiB running (1): test_abc (42.3 sec)\n0:01:13 load avg: 1.14 mem: 591.7 MiB running (1): test_abc (1 min 12 sec)\n0:01:43 load avg: 0.69 mem: 591.7 MiB running (1): test_abc (1 min 42 sec)\n0:02:13 load avg: 0.42 mem: 591.7 MiB running (1): test_abc (2 min 13 sec)\n...\n0:35:59 load avg: 0.03 mem: 533.8 MiB running (1): test_abc (35 min 59 sec)\n0:36:29 load avg: 0.02 mem: 533.8 MiB running (1): test_abc (36 min 29 sec)\n0:37:00 load avg: 0.01 mem: 533.8 MiB running (1): test_abc (36 min 59 sec)\nError: The operation was canceled.\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-151594\n* gh-151597\n* gh-151598\n* gh-152133\n* gh-152173\n* gh-152200\n* gh-152232\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2026-06-17T09:38:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":25},"url":"https://github.com/151593/cpython/issues/151593"}