kernel: Uhhuh. NMI received for unknown reason...

Dave Airlie airlied at redhat.com
Mon Mar 10 21:18:11 UTC 2008


On Mon, 2008-03-10 at 14:11 -0400, Alan Cox wrote:
> > Hence logic says that something that is being change between kernels
> > are causing this otherwise the kernel would ALWAYS being reporting
> > this...
> 
> Unlikely - hardware problems are often dependant on alignment of objects
> and other chance happenings. If you've got bad RAM and the faulty bits happen
> to land in a location where the faulty bits don't show a fault (its often
> combination based) you'll see exactly what is described.
> 
> > If anyone can tell me how I can *debug* it further
> > I'm all ears..
> 
> memtest86 full night run is what I usually start with for such cases.
> 
> 

I've seen this problem on a Dell Insprion 6000 as well, its definitely a
machine problem as opposed to a bad RAM case... I've never tracked down
what triggers it though... it may be heat related ...

Dave.




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