Enhanced SpeedStep hosed in -current ?
Igor Mozolevsky
igor at hybrid-lab.co.uk
Sun Mar 16 20:55:06 PDT 2008
On 17/03/2008, Kevin Oberman <oberman at es.net> wrote:
> > Date: Mon, 17 Mar 2008 02:43:19 +0000
> > From: "Igor Mozolevsky" <igor at hybrid-lab.co.uk>
> > Sender: owner-freebsd-current at freebsd.org
>
> >
> > On 16/03/2008, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> > >
> > > It looks like my laptop runs full speed at all times, no matter what
> > > powerd or I may desire.
> > >
> > > Looks like the EST driver is (suddenly ?) not happy about the system.
> >
> > I thought that this could've been related to the lapic frequency
> > madness I was seeing in RELENG_7 on my T43p, so I axed cpufreq from
> > kernel config, and the problem's gone... So, it does seem like
> > something is not quite in cpufreq > RELENG_7_0...
>
>
> My experience with my T43 (not T43p) is that it does not play well with
> cpufreq. This is not new to 7-Stable. I have been seeing it since the
> system was new, just over 2 years ago. I always build my kernel without
> it.
I'm not having lapic issues (or any others, AFAIKT) on my T43p w/
RELENG_7_0 but RELENG_7 makes it really sluggish w/ cpufreq compiled
in (perl timing tests fail as well)...
Cheers,
Igor
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