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From: Avi Kivity <avi@redhat.com>
To: Nate Custer <nate@cpanel.net>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
	kvm@vger.kernel.org, linux-kernel <linux-kernel@vger.kernel.org>,
	Jens Axboe <axboe@kernel.dk>
Subject: Re: kvm deadlock
Date: Wed, 14 Dec 2011 16:28:49 +0200	[thread overview]
Message-ID: <4EE8B2A1.8060603@redhat.com> (raw)
In-Reply-To: <7E2A4D2C-68BD-47E8-8079-37AE152D77B4@cpanel.net>

On 12/14/2011 04:17 PM, Nate Custer wrote:
> On Dec 14, 2011, at 8:06 AM, Marcelo Tosatti wrote:
> > I don't know. Its a hang ? It could be memory corruption (of the timer
> > olist) instead of a bogus NMI actually, the second.
>
>
> What is pasted in the second paste is what came scrolling across the console right before the end of all responsiveness. It came from a dmesg dump, the next dmesg command was not accepted via ssh and the console attached showed the same stack trace. At that point the system refused to respond to any direct keyboard input, including the SysRq commands that I expected to work after a core dump. 
>
> The issue happened with two servers (same hardware, same build group so there is a chance of a bad hardware batch). Switching to an older kernel/kvm setup in RHEL 6.2 has corrected the issue, which suggests a software issue to me.
>

If you can, please set up netconsole, which should give us complete
dmesg captures.

-- 
error compiling committee.c: too many arguments to function


  parent reply	other threads:[~2011-12-14 14:28 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-05 22:48 kvm deadlock Nate Custer
2011-12-14 12:25 ` Marcelo Tosatti
2011-12-14 13:43   ` Avi Kivity
2011-12-14 14:00     ` Marcelo Tosatti
2011-12-14 14:02       ` Avi Kivity
2011-12-14 14:06         ` Marcelo Tosatti
2011-12-14 14:17           ` Nate Custer
2011-12-14 14:20             ` Marcelo Tosatti
2011-12-14 14:28             ` Avi Kivity [this message]
2011-12-14 14:27           ` Avi Kivity
2011-12-14 16:03     ` Jens Axboe
2011-12-14 17:03       ` Vivek Goyal
2011-12-14 17:09         ` Jens Axboe
2011-12-14 17:22           ` Vivek Goyal
2011-12-14 18:16             ` Tejun Heo
2011-12-14 18:41               ` Vivek Goyal
2011-12-14 23:06                 ` Vivek Goyal
2011-12-15 19:47       ` [RFT PATCH] blkio: alloc per cpu data from worker thread context( Re: kvm deadlock) Vivek Goyal
     [not found]         ` <E73DB38E-AFC5-445D-9E76-DE599B36A814@cpanel.net>
2011-12-16 20:29           ` Vivek Goyal
2011-12-18 21:25             ` Nate Custer
2011-12-19 13:40               ` Vivek Goyal
2011-12-19 17:27               ` Vivek Goyal
2011-12-19 17:35                 ` Tejun Heo
2011-12-19 18:27                   ` Vivek Goyal
2011-12-19 22:56                     ` Tejun Heo
2011-12-20 14:50                       ` Vivek Goyal
2011-12-20 20:45                         ` Tejun Heo
2011-12-20 12:49                     ` Jens Axboe

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