Re: ntp: BUG: spinlock lockup on CPU#1

From: Thomas Gleixner
Date: Thu Mar 15 2012 - 10:04:52 EST


On Thu, 15 Mar 2012, Sasha Levin wrote:

> On Thu, Mar 15, 2012 at 3:23 PM, Sasha Levin <levinsasha928@xxxxxxxxx> wrote:
> > Hi all,
> >
> > I was doing some more fuzzing with trinity in a KVM tools guest, using
> > today's linux-next, when I've experienced a complete system lockup
> > (just in the guest ofcourse). After a bit I got the spew at the bottom
> > of this mail.
> >
> > From what I can tell from the logs, there were several threads waiting
> > on syscall results, and I suspect that the adjtimex() call on CPU3 is
> > somehow responsible for this lockup.
>
> Oh, and I'm not sure if it's related or not, but I've started seeing
> the following spew every time I start fuzzing:
>
> [ 47.105987] ------------[ cut here ]------------
> [ 47.106021] WARNING: at kernel/time/clockevents.c:209

It's unrelated, but I'm mighty curious how you manage that.

Thanks,

tglx


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