[New-bugs-announce] [issue20717] test_4_daemon_threads() fails randomly on "x86 Windows Server 2003 [SB] 3.x"

STINNER Victor report at bugs.python.org
Fri Feb 21 10:03:55 CET 2014


New submission from STINNER Victor:

The test test_4_daemon_threads() does crash randomly on the buildbot "x86 Windows Server 2003 [SB] 3.x". It may be an old bug which was not seen before because it was hidden by another bug (#19424 which is now fixed).

Charles-François Natali repeated that daemons threads can crash randomly at exit if they are waiting for a blocking call with the GIL released, and still use memory that is being freed by the main thread at exit.

http://buildbot.python.org/all/builders/x86%20Windows%20Server%202003%20%5BSB%5D%203.x/builds/2166/steps/test/logs/stdio

======================================================================
FAIL: test_4_daemon_threads (test.test_threading.ThreadJoinOnShutdown)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "E:\Data\buildslave\cpython\3.x.snakebite-win2k3r2sp2-x86\build\lib\test\test_threading.py", line 773, in test_4_daemon_threads
    rc, out, err = assert_python_ok('-c', script)
  File "E:\Data\buildslave\cpython\3.x.snakebite-win2k3r2sp2-x86\build\lib\test\script_helper.py", line 69, in assert_python_ok
    return _assert_python(True, *args, **env_vars)
  File "E:\Data\buildslave\cpython\3.x.snakebite-win2k3r2sp2-x86\build\lib\test\script_helper.py", line 55, in _assert_python
    "stderr follows:\n%s" % (rc, err.decode('ascii', 'ignore')))
AssertionError: Process return code is 3221225477, stderr follows:


Related issues:

- #19424: _warnings: patch to avoid conversions from/to UTF-8
- #19442: Python crashes when a warning is emitted during shutdown
- #19466: Clear state of threads earlier in Python shutdown => my changes from this issue have been reverted

----------
messages: 211830
nosy: haypo, neologix, pitrou, sbt
priority: normal
severity: normal
status: open
title: test_4_daemon_threads() fails randomly on "x86 Windows Server 2003 [SB] 3.x"
type: crash
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20717>
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