[New-bugs-announce] [issue13059] Sporadic test_multiprocessing failure: IOError("bad message length") in recv_bytes()

[STINNER Victor]

New submission from STINNER Victor <victor.stinner at haypocalc.com>:

[ 62/359] test_multiprocessing
Warning -- threading._dangling was modified by test_multiprocessing
Warning -- multiprocessing.process._dangling was modified by test_multiprocessing
test test_multiprocessing crashed -- Traceback (most recent call last):
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/test/regrtest.py", line 1163, in runtest_inner
    indirect_test()
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/test/test_multiprocessing.py", line 2349, in test_main
    ManagerMixin.pool = ManagerMixin.manager.Pool(4)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/managers.py", line 670, in temp
    token, exp = self._create(typeid, *args, **kwds)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/managers.py", line 568, in _create
    conn = self._Client(self._address, authkey=self._authkey)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/connection.py", line 507, in Client
    answer_challenge(c, authkey)
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/connection.py", line 734, in answer_challenge
    message = connection.recv_bytes(256)         # reject large message
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/connection.py", line 243, in recv_bytes
    self._bad_message_length()
  File "/var/lib/buildslave/3.x.murray-gentoo/build/Lib/multiprocessing/connection.py", line 175, in _bad_message_length
    raise IOError("bad message length")
IOError: bad message length

http://www.python.org/dev/buildbot/all/builders/x86%20Gentoo%203.x/builds/828/steps/test/logs/stdio

----------
components: Library (Lib)
messages: 144589
nosy: haypo, neologix, pitrou
priority: normal
severity: normal
status: open
title: Sporadic test_multiprocessing failure: IOError("bad message length") in recv_bytes()
versions: Python 3.3

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13059>
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