Re: Catching NForce2 lockup with NMI watchdog - found

[Bob]

Wasn't this formerly fixed by a kernel config
option to not detect cpu idle on amd cpu's?
I don't see that in 2.6

Julien Oster wrote:

> cheuche+lkml@xxxxxxx writes:
>
> Hello,
>
>  
>
> > > So gals and guys, try disabling cpu disconnect in bios and see whether 
> > > aopic now runs stable.
> > >      
>
>  
>
> > Yes that fix it. Well time will tell but I cannot make it crash with
> > hdparm -tT or cat /dev/hda so far. I'm dumping hda to /dev/null right
> > now.
> > After testing to make it crash, I used athcool to reenable CPU
> > disconnect, and guess what, test after that just crashed the box.
> > You found the problem, congratulations.
> >    
>
> Well, now I'm stunned.
>
> With APIC and ACPI enabled, my machine isn't even able to boot
> completely, it'll most certainly crash before the init scripts are
> finished.
>
> Now, I modified the init scripts to do "athcool off" as the first
> thing at all (I don't have any "CPU disconnect" BIOS setting) and it
> not only booted, but I even can't seem to make it crash using my
> hdparm/grep/whatever tests...
>
> I don't know if it's "rock solid" yet, but at least the difference is
> huge. It really seems like that made the problem go away!
>
> Regards,
> Julien
>  


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