Re: [2.6.17-rc5-mm2] crash when doing second suspend: BUG in arch/i386/kernel/nmi.c:174

From: Don Zickus
Date: Tue Jun 06 2006 - 12:45:57 EST


On Tue, Jun 06, 2006 at 09:23:59AM -0700, Jeremy Fitzhardinge wrote:
> Shaohua Li wrote:
> >Does below patch help? The nmi suspend/resume doesn't look good to me.
> >Only CPU0 uses the suspend/resume code path. Other CPUs run the CPU
> >hotplug code path.
> >
> Unfortunately this just oopses immediately on the first suspend. The
> stack trace is unclear (and I'm just going from memory at the moment),
> but it looked like it got an invalid op. I'll try to get a clearer idea
> of the crash later today.
>
> J

No this makes sense. The code right now just blindly tries to disable the
watchdog without checking to see that it is already disabled. The oops
you are seeing is a result of that. I'll have a patch to fix all that a
little later.

Cheers,
Don

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