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SubjectRe: 2.6.38-rc2: Uhhuh. NMI received for unknown reason 2d on CPU 0.

* Cyrill Gorcunov <gorcunov@gmail.com> wrote:

> On 2/16/11, Dave Airlie <airlied@gmail.com> wrote:
> > On Wed, Feb 2, 2011 at 2:18 PM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
> >> On 2/2/11, George Spelvin <linux@horizon.com> wrote:
> >>>> But if you have a will or would like to help debug the problem -- mind
> >>>> to
> >>>> try the patch below? Note the patch is ugly at moment and must *not* be
> >>>> running on non-P4 system (and I only compile-tested it so no guarantees
> >>>> at all, and I've CC'ed a couple of people as well)
> >>>
> >>> Promising... After 32 minute of uptime, no NMI complaints so far.
> >>>
> >>> I'll let it run overnight and see what happens.
> >>>
> >>
> >> Great, thanks. Though the patch didn't help for Don, ie there is still
> >> an issue which needs to be resolved as well.
> >> --
> >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> >> the body of a message to majordomo@vger.kernel.org
> >> More majordomo info at http://vger.kernel.org/majordomo-info.html
> >> Please read the FAQ at http://www.tux.org/lkml/
> >>
> >
> > Ping on this problem, still seeing
> >
> > Uhhuh. NMI received for unknown reason 3c on CPU 0.
> > Do you have a strange power saving mode enabled?
> > Dazed and confused, but trying to continue
> >
> > on my Pentium-D system here with latest Linus head.
> >
> > its sometimes 3c, sometimes 3d, I'm going to bisect and push for
> > reverts if nobody still has any clue about how to fix this.
> >
> > Dave.
> >
>
> We still trying to resolve it but without success yet. There is no
> easy way to revert it. One of the option might be to disable perf on
> p4 for a while. If this is acceptable -- i'll cook such patch and send
> it to Ingo. Hm?

That's not really acceptable - need to fix it or revert it to the last working
state. Which commit broke it?

Thanks,

Ingo


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