Re: [PATCH -v3] perf, x86: try to handle unknown nmis with runningperfctrs

[Robert Richter]

On 20.08.10 11:25:10, Ingo Molnar wrote:

> > Ingo Molnar <mingo@xxxxxxx> wrote:
> > 
> > >
> > >it's not working so well, i'm getting:
> > >
> > > Uhhuh. NMI received for unknown reason 00 on CPU 9.
> > > Do you have a strange power saving mode enabled?
> > > Dazed and confused, but trying to continue
> > >
> > >on a nehalem box, after a perf top and perf stat run.
> 
> FYI, it does not trigger on an AMD box.

Ingo,

do you mean it does not trigger false positives on AMD? Both patches
applied on top of current tip/perf/urgent (c6db67c) are working on the
systems I have.

You might use the debug patch below for diagnostics.

-Robert

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