René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"regrtest can reports false SUCCESS and skip tests when a -j worker dies","articleBody":"See in https://buildbot.python.org/all/#/builders/424/builds/3407/steps/5/logs/stdio (Raspbian)\r\n\r\n```\r\n...\r\n0:04:46 load avg: 7.28 [ 48/434] test_isinstance passed -- running: test_largefile (2 min 54 sec)\r\n0:05:03 load avg: 7.39 [ 49/434] test_utf8source passed -- running: test_largefile (3 min 11 sec), test_unittest (38.7 sec)\r\nWarning -- regrtest worker thread failed: Traceback (most recent call last):\r\nWarning --   File \"/var/lib/buildbot/workers/3.x.gps-raspbian.nondebug/build/Lib/test/libregrtest/runtest_mp.py\", line 342, in run\r\nWarning --     mp_result = self._runtest(test_name)\r\nWarning --                 ^^^^^^^^^^^^^^^^^^^^^^^^\r\nWarning --   File \"/var/lib/buildbot/workers/3.x.gps-raspbian.nondebug/build/Lib/test/libregrtest/runtest_mp.py\", line 301, in _runtest\r\nWarning --     stdout = stdout_fh.read().strip()\r\nWarning --              ^^^^^^^^^^^^^^^^\r\nWarning --   File \"\u003cfrozen codecs\u003e\", line 322, in decode\r\nWarning -- UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa9 in position 35: invalid start byte\r\nKill \u003cTestWorkerProcess #1 running test=test_tempfile pid=7836 time=21.8 sec\u003e process group\r\nKill \u003cTestWorkerProcess #2 running test=test_largefile pid=7700 time=3 min 32 sec\u003e process group\r\n\r\n== Tests result: SUCCESS ==\r\n\r\n385 tests omitted:\r\n    test___all__ test__locale test__opcode test__osx_support\r\n    test__xxinterpchannels test__xxsubinterpreters test_abc test_aifc\r\n    test_argparse test_array test_asdl_parser test_ast test_asyncgen\r\n    test_asyncio test_atexit test_audioop test_audit test_base64\r\n...\r\n```\r\n\r\nThis might be an infrastructure issue or an actual issue with real non utf-8 data making it through the mp sockets. Regardless, it should've triggered an error and exit 1 instead of a false SUCCESS exit 0.\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-106169\n* gh-106174\n* gh-106175\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/gpshead","@type":"Person","name":"gpshead"},"datePublished":"2023-02-07T09:03:21.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/101634/cpython/issues/101634"}