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

[Ingo Molnar]

* Robert Richter <robert.richter@xxxxxxx> wrote:

> On 25.08.10 06:41:30, Ingo Molnar wrote:
> 
> > > > > > 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
> > 
> > Before the two patches i did not get these messages at all, on any 
> > of the systems.
> 
> Yes, because all were eaten by NOTIFY_STOP, and that's why we also 
> lose NMIs from other sources, like the nmi button. The patches try to 
> fix this.

I understand that, but obviously the patches need to fix the lack of 
messages without introducing new regressions: such as messages not seen 
before and CPUs with stuck NMIs.

Thanks,

	Ingo
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