linux-kernel - Re: [Bug #12465] KVM guests stalling on 2.6.28 (bisected)

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Message-Id: <1235513466.4860.7.camel@kulgan.wumi.org.au>
Date:	Wed, 25 Feb 2009 08:41:06 +1030
From:	Kevin Shanahan <kmshanah@...b.org.au>
To:	Avi Kivity <avi@...hat.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, Mike Galbraith <efault@....de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [Bug #12465] KVM guests stalling on 2.6.28 (bisected)

On Tue, 2009-02-24 at 14:09 +0200, Avi Kivity wrote:
> Kevin Shanahan wrote:
> > On Mon, 2009-02-23 at 23:03 +0100, Rafael J. Wysocki wrote:
> >   
> >> This message has been generated automatically as a part of a report
> >> of regressions introduced between 2.6.27 and 2.6.28.
> >>
> >> The following bug entry is on the current list of known regressions
> >> introduced between 2.6.27 and 2.6.28.  Please verify if it still should
> >> be listed and let me know (either way).
> >>     
> >
> > Yes, the problem should still be listed.
> > The bug is still present as recently as 2.6.29-rc5-00299-gadfafef.
> >   
> 
> Did tracing turn anything up?

I provided some more traces using Ingo's "tip" branch, but I don't think
anyone has looked at them yet.

  http://bugzilla.kernel.org/show_bug.cgi?id=12465#c11

I can provide more traces if e.g. a different set of functions is
required, but I'm not going to be able to analyse them properly myself.

I should have a bit more time for testing next week and I plan to try
setting up the guest with the different virtual network adapters models
to see if that helps.

Cheers,
Kevin.


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