Hi,

On Sat, May 14, 2011 at 09:04:23PM +0200, Nikola Ciprich wrote:
> Hello gentlemans,
> Nicolas, thanks for further report, it contradicts my theory that problem 
> occured somewhere during 2.6.32.16.

Well, I'd like to be sure what kernel we're talking about. Nicolas said
"2.6.32.8 Debian Kernel", but I suspect it's "2.6.32-8something" instead.
Nicolas, could you please report the exact version as indicated by "uname -a" ?

> 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
> 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, our customer who had two of these boxes crash at the same time was
not running any RT task to the best of my knowledge.

Cheers,
Willy

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