From: Dario Faggioli <raistlin@linux.it>
To: Jan Beulich <JBeulich@suse.com>
Cc: Juergen Gross <juergen.gross@ts.fujitsu.com>,
Keir Fraser <keir.xen@gmail.com>,
Ian Jackson <Ian.Jackson@eu.citrix.com>,
xen-devel@lists.xensource.com
Subject: Re: [xen-unstable test] 9955: regressions - FAIL
Date: Tue, 22 Nov 2011 11:27:27 +0100 [thread overview]
Message-ID: <1321957647.4878.5.camel@Abyss> (raw)
In-Reply-To: <4ECB67CF0200007800062465@nat28.tlf.novell.com>
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On Tue, 2011-11-22 at 08:13 +0000, Jan Beulich wrote:
> I don't think so - the sedf thing (with varying sub-tests iirc) has been
> (inconsistently) failing for quite a long while.
>
Indeed, and I'm starting looking into this to see if we can figure out
what's causing these tests to fail every now and then.
> Further, here this test wasn't even run because xen-boot (below)
> failed. And no matter how many times I looked at the respective
> logs, I wasn't able to spot what it really is that fails here. I can only
> assume that Dom0 is hung, but my sedf knowledge doesn't go far
> enough to tell that for sure from the dumped data.
>
Yes, Dom0 hangs rock solid, and hung task detection fires if it is
compiled into Linux, otherwise, I see RCU periodically reporting stall
on some CPU in the system. I'm quite in an interesting situation for
debugging this, since it fails _reliably_ on my 12 cores testbox... The
only thing I'm missing is a serial console cable, but I'm trying to get
around this! :-P
I'll dig this in the next days and let the list know.
Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
----------------------------------------------------------------------
Dario Faggioli, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
PhD Candidate, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa (Italy)
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next prev parent reply other threads:[~2011-11-22 10:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-22 7:17 [xen-unstable test] 9955: regressions - FAIL xen.org
2011-11-22 7:42 ` Keir Fraser
2011-11-22 8:13 ` Jan Beulich
2011-11-22 10:09 ` Dario Faggioli
2011-11-22 10:14 ` Dario Faggioli
2011-11-22 10:27 ` Dario Faggioli [this message]
2011-11-22 8:32 ` Juergen Gross
2011-11-22 10:14 ` Dario Faggioli
2011-11-22 10:27 ` Dario Faggioli
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