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SubjectRe: 2.6.32.21 - uptime related crashes?
On Sat, May 14, 2011 at 09:04:23PM +0200, Nikola Ciprich wrote:
> Nicolas, thanks for further report, it contradicts my theory that
> problem occured somewhere during 2.6.32.16. Now I think I know why
> several of my other machines running 2.6.32.x for long time didn't
> crashed:
>
> I checked bugzilla entry for (I believe the same) problem here:
> https://bugzilla.kernel.org/show_bug.cgi?id=16991

I don't think that that bug is related, I for one haven't seen any
backtrace that is similar to the above or relevant to divide by zero.

> and Peter Zijlstra asked there, whether reporters systems were running
> some RT tasks. Then I realised that all of my four crashed boxes were
> pacemaker/corosync clusters and pacemaker uses lots of RT priority
> tasks. So I believe this is important, and might be reason why other
> machines seem to be running rock solid - they are not running any RT
> tasks. It also might help with hunting this bug. Is somebody of You
> also running some RT priority tasks on inflicted systems, or problem
> also occured without it?

No, no RT tasks here. The boxes in my case were just running a lot of
kvm processes.

Regards,
Faidon


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