Re: [ACPI] X86_PM_TIMER: /proc/cpuinfo doesn't get updated

Dominik Brodowski
2004-03-16T23:35:36Z

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On Tue, Mar 16, 2004 at 03:28:15PM -0800, john stultz wrote:
> On Tue, 2004-03-16 at 13:42, Karol Kozimor wrote:
> > Thus wrote Daniele Venzano:
> > > > I have a notebook with an Athlon-M CPU. I tried linux 2.6.4 with
> > > > CONFIG_X86_PM_TIMER=y and I noticed that /proc/cpuinfo doesn't get
> > > > updated when I switch frequency (via sysfs, using powernow-k7). The is
> > > > issue seems cosmetic only, CPU frequency changes (watching
> > > > temperature/battery life).
> > > I can confirm, I'm seeing the same behavior. Please note that the
> > > bogomips count gets updated, it's only the frequency that doesn't
> > > change.
> >
> > Same here with a P4-M, follow-up to John and Dmitry.
>
> Hmm. This is untested, but I think this should do the trick.
>
> Dominik: Is there any reason I'm not seeing why cpu_khz should only be
> updated when using the TSC?

Is cpu_khz always correct (or, at least, nonzero) when we're reaching this
code path?

Dominik

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