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SubjectRe: 37afb0003242 ("cpufreq: intel_pstate: Use ACPI perf configuration") makes intel_pstate kaputt
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On Tue, 2015-11-17 at 15:38 +0100, Rafael J. Wysocki wrote:
> On Tuesday, November 17, 2015 10:09:47 AM Borislav Petkov wrote:
> > Hi,
> >

[...]
> > during boot.

Also can you try with processor.ignore_ppc=1 in kernel command line.

Thanks,
Srinivas
> >
> > When I boot with "intel_pstate=no_acpi" it boosts normally to 3.4GHz and
> > above and turbostat says:
> >
> > CPU Avg_MHz %Busy Bzy_MHz TSC_MHz
> > - 3392 99.92 3400 2895
> > 0 3395 99.96 3400 2897
> > 1 3390 99.88 3400 2895
> > 2 3391 99.89 3400 2895
> > 3 3391 99.95 3400 2893
> >
> > which is what it should be saying. :)
>
> Well, sorry for the breakage.
>
> acpidump output would help to diagnose this I suppose.
>
> Thanks,
> Rafael
>
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