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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`test_tracemalloc_track_race` segfault on buildbot","articleBody":"# Crash report\n\nSeen on the ARM Raspbian 3.x buildbot, but I suspect it's not Raspbian specific:\n\nhttps://buildbot.python.org/#/builders/424/builds/12446/steps/6/logs/stdio\n\n```\n0:02:36 load avg: 3.51 [177/497/1] test_tracemalloc worker non-zero exit code (Exit code -11 (SIGSEGV))\ntest_late_untrack (test.test_tracemalloc.TestCAPI.test_late_untrack) ... ok\ntest_stop_track (test.test_tracemalloc.TestCAPI.test_stop_track) ... ok\ntest_stop_untrack (test.test_tracemalloc.TestCAPI.test_stop_untrack) ... ok\ntest_tracemalloc_track_race (test.test_tracemalloc.TestCAPI.test_tracemalloc_track_race) ... Fatal Python error: Segmentation fault\n\nThread 0xf4afe400 [python] (most recent call first):\n\nThread 0xf52ff400 [python] (most recent call first):\n  \u003cfreed thread state\u003e\n\n\u003cfreed thread state\u003e\n\nCurrent thread's C stack trace (most recent call first):\n  \u003csystem returned no stack trace\u003e\n\nExtension modules: math.integer, _testcapi, _testinternalcapi (total: 3)\n```","author":{"url":"https://github.com/colesbury","@type":"Person","name":"colesbury"},"datePublished":"2025-12-24T13:27:43.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/143143/cpython/issues/143143"}