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SubjectRe: [BUG] Interesting race between cpufreq_ondemand and snd_atiixp
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Hi;

16 Haz 2007 Cts tarihinde, Dave Jones şunları yazmıştı:
> On Sat, Jun 16, 2007 at 02:33:41AM +0300, S.Çağlar Onur wrote:
> > One of our colleagues found following problem with his old laptop while
> > testing Linus's latest git with external alsa-driver (v1.0.14). And we
> > can also reproduce same problem with 2.6.18.8 so it seems not a new
> > regression (if it is a regression).
> >
> > As a summary "sound stops to work if cpufreq_ondemand governor is used"
> > on that laptop. Problem occurs only if cpufreq_* modules are loaded and
> > %100 reproducable if system configured for ondemand governor.
>
> I'm puzzled. The cpuinfo shows that this cpu doesn't have speedstep, so
> why acpi-cpufreq successfully loads is a mystery.
>
> What's in/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
> ?

mavi ~ #
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2793000 1596000

> Maybe the acpi implementation is faking multiple speeds using throttling
> a la p4-clockmod, which would be a bit loopy, but possible I guess.

modprobe p4-clockmod with 2.6.18.8 ends up with "Device or resource busy"

Cheers
--
S.Çağlar Onur <caglar@pardus.org.tr>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!
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