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

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> 
> * Don Zickus <dzickus@xxxxxxxxxx> wrote:
> 
> > I'll test tip later today to see if I can reproduce it.
> > 
> > Cheers,
> > Don
> > 
> > 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.

Ok, to not hold up the perf/urgent flow i zapped these two commits for 
the time being:

 4a31beb: perf, x86: Fix handle_irq return values
 8e3e42b: perf, x86: Try to handle unknown nmis with an enabled PMU

We can apply them if they take a form that dont introduce a different 
kind of (and more visible) regression.

Thanks,

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/