René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"multiprocessing test_thread_safety() fails with \"gc_list_is_empty(to) || gc_old_space(to_tail) == gc_old_space(from_tail)\" assert error","articleBody":"Error on AMD64 Windows11 Bigmem 3.x.\r\n\r\nbuild: https://buildbot.python.org/all/#/builders/1079/builds/3327\r\n\r\ntest_multiprocessing_spawn also fails with an assertion error:\r\n\r\n```\r\ntest_thread_safety (test.test_multiprocessing_spawn.test_processes.WithProcessesTestFinalize.test_thread_safety) ...\r\n\r\nAssertion failed: gc_list_is_empty(to) || gc_old_space(to_tail) == gc_old_space(from_tail), file R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Python\\gc.c, line 320\r\nFatal Python error: Aborted\r\n\r\nCurrent thread 0x00000cbc (most recent call first):\r\n  Garbage-collecting\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\_test_multiprocessing.py\", line 4592 in __init__\r\n  File \"__init__\", line ??? in __init__\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\_test_multiprocessing.py\", line 4618 in make_finalizers\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1026 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1089 in _bootstrap_inner\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1046 in _bootstrap\r\n\r\nThread 0x00002b88 (most recent call first):\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\logging\\__init__.py\", line 1561 in log\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\multiprocessing\\util.py\", line 46 in sub_debug\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\multiprocessing\\util.py\", line 294 in _run_finalizers\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\_test_multiprocessing.py\", line 4607 in run_finalizers\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1026 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1089 in _bootstrap_inner\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\threading.py\", line 1046 in _bootstrap\r\n\r\nThread 0x00002598 (most recent call first):\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\_test_multiprocessing.py\", line 4631 in test_thread_safety\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\case.py\", line 589 in _callTestMethod\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\case.py\", line 634 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\case.py\", line 690 in __call__\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\suite.py\", line 122 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\suite.py\", line 84 in __call__\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\suite.py\", line 122 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\suite.py\", line 84 in __call__\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\unittest\\runner.py\", line 240 in run\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 57 in _run_suite\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 37 in run_unittest\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 132 in test_func\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 88 in regrtest_runner\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 135 in _load_run_test\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 178 in _runtest_env_changed_exc\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 278 in _runtest\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\single.py\", line 306 in run_single_test\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\worker.py\", line 91 in worker_process\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\worker.py\", line 126 in main\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\test\\libregrtest\\worker.py\", line 130 in \u003cmodule\u003e\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\runpy.py\", line 88 in _run_code\r\n  File \"R:\\buildarea\\3.x.ambv-bb-win11.bigmem\\build\\Lib\\runpy.py\", line 198 in _run_module_as_main\r\n\r\nExtension modules: _testcapi, _wmi (total: 2)\r\n```","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2024-02-07T05:53:06.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/115127/cpython/issues/115127"}