Mailing List Archive: Python: Bugs

[issue14669] test_multiprocessing failure on OS X Tiger

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Apr 25, 2012, 9:16 AM

Post #1 of 5 (55 views)
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[issue14669] test_multiprocessing failure on OS X Tiger

New submission from Antoine Pitrou <pitrou [at] free>:

The OS X Tiger fails more or less intermittently on one of the new multiprocessing tests:

======================================================================
FAIL: test_pickling (test.test_multiprocessing.WithProcessesTestPicklingConnections)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/db3l/buildarea/3.x.bolen-tiger/build/Lib/test/test_multiprocessing.py", line 2032, in test_pickling
self.assertEqual(new_conn.recv(100), msg.upper())
AssertionError: b'' != b'THIS CONNECTION USES A NORMAL SOCKET'

http://www.python.org/dev/buildbot/all/builders/x86%20Tiger%203.x/builds/4408/steps/test/logs/stdio

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components: Library (Lib), Tests
messages: 159312
nosy: pitrou, sbt
priority: normal
severity: normal
status: open
title: test_multiprocessing failure on OS X Tiger
type: behavior
versions: Python 3.3

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Apr 26, 2012, 9:45 AM

Post #2 of 5 (50 views)
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[issue14669] test_multiprocessing failure on OS X Tiger [In reply to]

Richard Oudkerk <shibturn [at] gmail> added the comment:

I can't work out what is wrong here.

The code does not to account for a partial read of the message from the socket. The attached patch fixes that, but it does not address the cause of this failure.

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keywords: +patch
Added file: http://bugs.python.org/file25372/partial_message.patch

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Apr 30, 2012, 2:16 AM

Post #3 of 5 (49 views)
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[issue14669] test_multiprocessing failure on OS X Tiger [In reply to]

Charles-François Natali <neologix [at] free> added the comment:

> I can't work out what is wrong here.

OS-X has known issues with FD-passing over Unix domain sockets, see issues #6560 and #12958.
Since those failures only occur on OS-X buildbots, I'd suggest just skipping them...

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nosy: +neologix

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Apr 30, 2012, 6:53 AM

Post #4 of 5 (49 views)
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[issue14669] test_multiprocessing failure on OS X Tiger [In reply to]

Roundup Robot <devnull [at] psf> added the comment:

New changeset e64bec91ac91 by Richard Oudkerk in branch 'default':
Issue #14669: Skip multiprocessing connection pickling test on MacOSX
http://hg.python.org/cpython/rev/e64bec91ac91

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nosy: +python-dev

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May 1, 2012, 4:58 AM

Post #5 of 5 (46 views)
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[issue14669] test_multiprocessing failure on OS X Tiger [In reply to]

Charles-François Natali <neologix [at] free> added the comment:

The buildbot seems happy, let's close!

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resolution: -> fixed
stage: -> committed/rejected
status: open -> closed

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