[issue15192] test_bufio failures on Win64 buildbot

[Zachary Ware]

Zachary Ware  added the comment:

I've not seen this issue on that worker for a very long time; closing the issue.

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nosy: +zach.ware
resolution:  -> out of date
stage:  -> resolved
status: pending -> closed

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[issue15192] test_bufio failures on Win64 buildbot

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

The implementation of test.support.unlink() was changed since. It tries to 
change permissions of read-only files, and repeat attempts several times. It 
looks more reliable now. Is this issue still reproducible?

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status: open -> pending

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[issue15192] test_bufio failures on Win64 buildbot

[Stefan Krah]

Changes by Stefan Krah stefan-use...@bytereef.org:


--
nosy:  -skrah

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[issue15192] test_bufio failures on Win64 buildbot

[Antoine Pitrou]

New submission from Antoine Pitrou pit...@free.fr:

test_bufio fails sporadically on the AMD64 Windows7 SP1 buildbot, e.g.:

http://buildbot.python.org/all/builders/AMD64%20Windows7%20SP1%203.x/builds/161/steps/test/logs/stdio

test_nullpat (test.test_bufio.CBufferSizeTest) ... ok
test_primepat (test.test_bufio.CBufferSizeTest) ... ERROR
test_nullpat (test.test_bufio.PyBufferSizeTest) ... ok
test_primepat (test.test_bufio.PyBufferSizeTest) ... ok

==
ERROR: test_primepat (test.test_bufio.CBufferSizeTest)
--
Traceback (most recent call last):
  File 
C:\Users\Buildbot\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_bufio.py,
 line 59, in test_primepat
self.drive_one(b1234567890\00\01\02\03\04\05\06)
  File 
C:\Users\Buildbot\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_bufio.py,
 line 52, in drive_one
self.try_one(teststring)
  File 
C:\Users\Buildbot\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_bufio.py,
 line 20, in try_one
support.unlink(support.TESTFN)
  File 
C:\Users\Buildbot\buildbot.python.org\3.x.kloth-win64\build\lib\test\support.py,
 line 229, in unlink
os.unlink(filename)
PermissionError: [Error 5] Access is denied: '@test_2420_tmp'


Is there some kind of anti-virus installed on the machine?

--
components: Tests
keywords: buildbot
messages: 164072
nosy: jkloth, pitrou, skrah
priority: normal
severity: normal
status: open
title: test_bufio failures on Win64 buildbot
type: behavior
versions: Python 2.7, Python 3.2, Python 3.3

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[issue15192] test_bufio failures on Win64 buildbot

[Stefan Krah]

Stefan Krah stefan-use...@bytereef.org added the comment:

Looks similar to the sporadic test_reprlib failure. Roumen has explained
that here:

http://bugs.python.org/issue14599#msg162727


I didn't test myself though, just a guess.

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[issue15192] test_bufio failures on Win64 buildbot

[Antoine Pitrou]

Antoine Pitrou pit...@free.fr added the comment:

 Looks similar to the sporadic test_reprlib failure. Roumen has explained
 that here:

I don't think there's anything similar. The path is much smaller in
test_bufio.

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[issue15192] test_bufio failures on Win64 buildbot

[Antoine Pitrou]

Changes by Antoine Pitrou pit...@free.fr:


--
nosy: +jeremy.kloth

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[issue15192] test_bufio failures on Win64 buildbot

[Jeremy Kloth]

Jeremy Kloth jeremy.kl...@gmail.com added the comment:

I've changed the malware scanner to disable real-time protection and
have disabled scanning of the buildbot directories.

Note that I could reproduce intermittent failures when using '-j' of
regrtest, but with these changes they no longer appear.

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[issue15192] test_bufio failures on Win64 buildbot

[Antoine Pitrou]

Antoine Pitrou pit...@free.fr added the comment:

 I've changed the malware scanner to disable real-time protection and
 have disabled scanning of the buildbot directories.

Thank you. I hope that, thanks to this change, we later can make the
Win64 buildbot part of the bunch of stable buildbots.

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