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Bug#678443: Hard lockups due to "lockup-detector" (NMIs) on multi-Pentium-3 SMP systems on all kernel builds since 2.6.38



On Wed, 2012-07-11 at 21:49 +0200, Hans-Juergen Mauser wrote:
> Hello,
> 
> 
> Ben Hutchings wrote:
>  > [...]
>  >
>  > I think it's fine and has nothing to do with the problem.
>  >
>  > Since you say it has taken 1-8 days for any problem to appear, I suppose
>  > you will have to wait a few weeks to have some confidence that
>  > 'nowatchdog' makes a difference.
> 
> 
> well, even if you think it has nothing to do with the problem, now I am 
> almost sure it has. Nothing is more evident than uptime:
> 
> netfinity5000:~# uptime
>   21:39:39 up 21 days,  4:39,  2 users,  load average: 0,13, 0,10, 0,07
> 
> For comparison, see the last mail I added to this bug, the maximal 
> continuous operation time was nothing more than about 8 days.

I agree, it does sound like you were right.  Sorry for being so
sceptical.

> It would be great if anyone took care of this bug, maybe there are other 
> people getting hit by this and not being able to track it down.
> 
> Would you recommend me to report this on bugzilla.kernel.org ?

Either there or LKML (linux-kernel@vger.kernel.org).  On Bugzilla it
think it would belong under Platform Specific/Hardware, i386.

Ben.

-- 
Ben Hutchings
The generation of random numbers is too important to be left to chance.
                                                            - Robert Coveyou

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