[issue18382] multiprocessing's overlapped PipeConnection issues on Windows 8

[Walter Prins]

New submission from Walter Prins:

It appears that Windows 8 (Version 6.2.9200 x64) has introduced changes in 
behaviour that causes the multiprocessing module's use of overlapped 
PipeConnection to fail (Python 3.4 32bit and release 3.3.2 32bit).

This issue previously existed (see issue #12328 point 1) and was fixed but the 
fixes for #12328 do not appear to work on Windows 8.  

Specifically the test test_multiprocessing._TestPoll.test_empty_string fails 
with message:
FAIL: test_empty_string (Lib.test.test_multiprocessing.WithProcessesTestPoll)
--
Traceback (most recent call last):
  File 
"C:\Users\Walter\Documents\src\cpython\Lib\test\test_multiprocessing.py", line 
2416, in test_empty_string
self.assertEqual(a.poll(), True)
AssertionError: False != True

Additionally, there appears to be no buildbot for Windows 8 currently, would it 
be possible to have one set up?

--
components: Extension Modules
messages: 192431
nosy: wprins
priority: normal
severity: normal
status: open
title: multiprocessing's overlapped PipeConnection issues on Windows 8
type: behavior
versions: Python 3.3, Python 3.4

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[issue18382] multiprocessing's overlapped PipeConnection issues on Windows 8

[Walter Prins]

Walter Prins added the comment:

On 6 July 2013 16:44, Richard Oudkerk  wrote:

>
> Richard Oudkerk added the comment:
>
> Does that test always fail?

Yes it does.  I should've probably added in the original report that the
following test (test_strings) also fail, possibly/probably due to the same
issue.  If you'd like me to post more details please ask.

Walter

>
>
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[issue18382] multiprocessing's overlapped PipeConnection issues on Windows 8

[Walter Prins]

Walter Prins added the comment:

What's the process for volunteering a buildbot?  Email python-dev?  I
*might* volunteer to set one up...

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