occasional test_threading failure

[pitrou]

BPO	18664
Nosy	@pitrou, @vstinner, @tiran, @serhiy-storchaka

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2013-10-10.22:50:20.129>
created_at = <Date 2013-08-05.22:19:25.730>
labels = ['interpreter-core', 'tests', 'type-crash']
title = 'occasional test_threading failure'
updated_at = <Date 2013-10-10.22:50:20.128>
user = 'https://github.com/pitrou'

bugs.python.org fields:

activity = <Date 2013-10-10.22:50:20.128>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2013-10-10.22:50:20.129>
closer = 'vstinner'
components = ['Interpreter Core', 'Tests']
creation = <Date 2013-08-05.22:19:25.730>
creator = 'pitrou'
dependencies = []
files = []
hgrepos = []
issue_num = 18664
keywords = []
message_count = 4.0
messages = ['194517', '194521', '196097', '196200']
nosy_count = 5.0
nosy_names = ['pitrou', 'vstinner', 'christian.heimes', 'python-dev', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue18664'
versions = ['Python 3.4']

[pitrou]

http://buildbot.python.org/all/builders/AMD64%20Windows%20Server%202008%20%5BSB%5D%203.x/builds/1021

======================================================================
FAIL: test_finalize_with_trace (test.test_threading.ThreadTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\test\test_threading.py", line 323, in test_finalize_with_trace
    """)
  File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\test\script_helper.py", line 54, in assert_python_ok
    return _assert_python(True, *args, **env_vars)
  File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\test\script_helper.py", line 46, in _assert_python
    "stderr follows:\n%s" % (rc, err.decode('ascii', 'ignore')))
AssertionError: Process return code is 3, stderr follows:
Assertion failed: !PyErr_Occurred(), file ..\Objects\object.c, line 451
Fatal Python error: Aborted

Thread 0x00000e14:
File "<string>", line 8 in killer
File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\threading.py", line 599 in run
File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\threading.py", line 642 in _bootstrap_inner
File "E:\home\cpython\buildslave\x64\3.x.snakebite-win2k8r2sp1-amd64\build\lib\threading.py", line 619 in _bootstrap

Current thread 0x000006c4:

[vstinner]

Assertion failed: !PyErr_Occurred(), file ..\Objects\object.c, line 451

This error means that PyObject_Repr() was called with an exception set. It would help to know which function called PyObject_Repr() and when.

[vstinner]

See also issue bpo-18746.

[python-dev]

New changeset e63f19d0a651 by Victor Stinner in branch 'default':
Issue bpo-18664, bpo-18408: Rewrite PyErr_WriteUnraisable() to handle errors
http://hg.python.org/cpython/rev/e63f19d0a651