[issue11962] FreeBSD-AMD64 bot sporadic hanging

2011-05-02 Thread Stefan Krah

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

Going through the logs, this indeed looks like a buildbot software
issue to me. I attach the logs that correspond to this incident:

http://www.python.org/dev/buildbot/all/builders/AMD64%20FreeBSD%208.2%203.2/builds/85

After ...

2011-04-30 01:10:56+0200 [Broker,client]   closing stdin
2011-04-30 01:10:56+0200 [Broker,client]   using PTY: False

... normally you should see:

... [-] command finished with signal None, exit code 0, elapsedTime:


But there is nothing until I restarted the bot.

--
Added file: http://bugs.python.org/file21860/freebsd-amd64-log.txt

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[issue11962] FreeBSD-AMD64 bot sporadic hanging

2011-05-01 Thread Stefan Krah

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

Thanks Victor, I can try some of that.

Could this also be a problem with the buildbot software or a networking
problem? The Ubuntu PPC bot might have the same issue. Here the tests
appear to be finished but the clean doesn't start:

http://www.python.org/dev/buildbot/all/builders/PPC%20Ubuntu%203.1/builds/387/steps/test/logs/stdio
http://www.python.org/dev/buildbot/all/builders/PPC%20Ubuntu%203.1/builds/387

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[issue11962] FreeBSD-AMD64 bot sporadic hanging

2011-05-01 Thread Ned Deily

Ned Deily n...@acm.org added the comment:

That might be another instance of this:

   http://thread.gmane.org/gmane.comp.python.devel/123698

You might want to bring this up on python-dev.

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nosy: +ned.deily

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[issue11962] FreeBSD-AMD64 bot sporadic hanging

2011-04-30 Thread Stefan Krah

New submission from Stefan Krah stefan-use...@bytereef.org:

The FreeBSD-AMD64 bot exhibits sporadic hanging in unspecific places.
FreeBSD is running under kvm in the background. When the hanging occurs,
the virtual machine uses 100% CPU and I can't log in via ssh, so I have
to kill the kvm process.

The fact that the ssh login fails if a user process is misbehaving
seems like a FreeBSD/kvm issue to me. However, this problem did not
occur when I set up the bot a couple of weeks ago.


I've started a series of older revision builds to see if anything
recent causes this.

--
components: Tests
messages: 134839
nosy: pitrou, skrah
priority: normal
severity: normal
status: open
title: FreeBSD-AMD64 bot sporadic hanging
type: behavior

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[issue11962] FreeBSD-AMD64 bot sporadic hanging

2011-04-30 Thread STINNER Victor

STINNER Victor victor.stin...@haypocalc.com added the comment:

 The FreeBSD-AMD64 bot exhibits sporadic hanging in unspecific places.

You can try a shorter regrtest timeout, edit Lib/test/regrtest.py near:

if hasattr(faulthandler, 'dump_tracebacks_later'):
timeout = 60*60

(or use --timeout option of the regrtest.py program)

If you have an access to a terminal (using ssh), you can also set a signal to 
dump the traceback: edit regrtest.py to add import signal; 
faulthandler.register(signal.SIGUSR1, all_threads=True) after 
faulthandler.enable(). Then use kill -USR1 pid to dump the traceback.

Or the problem is an unlimited loop while dumping the traceback because of a 
timeout :-D In this case, disable the timeout using --timeout=0 option of 
regrtest.py.

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nosy: +haypo

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