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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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