Re: [PATCH] perf: fix assertion failure in x86_pmu_start()

From: Ingo Molnar
Date: Tue Feb 07 2012 - 06:36:52 EST

* Stephane Eranian <eranian@xxxxxxxxxx> wrote:

> > This was already discussed last year.
> >
> >
> >
> > Apparently all HP blades I have in my labs have the problem,
> > whatever option is chosen in BIOS.
> >
> > On my machines, I set the BIOS to 'High performance', and
> > cpus are on highest available frequencies.
> Yeah, it's an old problem (> 4years). And if I recall
> correctly, there is no option in the BIOS to turn it off.
> You'd have to talk to HP directly.

That's most likely unrelated to the regression at hand though.


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