linux-kernel - Re: cpufreq regression, unable to set lower frequency

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Message-ID: <20080821225537.GB20165@inferi.kami.home>
Date:	Fri, 22 Aug 2008 07:55:37 +0900
From:	Mattia Dongili <malattia@...ux.it>
To:	Martin Filip <bugtraq@...ula.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: cpufreq regression, unable to set lower frequency

On Thu, Aug 21, 2008 at 07:51:41PM +0200, Martin Filip wrote:
> Hi LKML,
> 
> I've upgraded my kernel few days earlier and suddenly my cpufreqd
> stopperd working. My configuration is this:
> AC adapter connected:
>   set scaling_max_freq and scaling_min_freq to maximal available
> frequency
> AC adapter disconnected:
>   set scaling_max_freq to maximal available, scaling_min_freq to minimal
> available.
> 
> When I connect AC adapter, everything works fine but when I disconnect
> my adapter, everything remains on maximal frequency and in logs I can
> see:
> 
> cpufreqd: cpufreqd_set_profile: Couldn't set profile "Powersave Low" set
> for cpu0
> 
> After some tests I've traced problem to 
> 
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git;a=commitdiff;h=53391fa20cab6df6b476a5a0ad6be653c9de0c46
 
what version of cpufrequtils are running? This error should be fixed in
004 (or later) with this patch:
http://git.kernel.org/?p=utils/kernel/cpufreq/cpufrequtils.git;a=commit;h=b88f8975d27690e04e520b05a1ed66bf1e306ee6

thanks
-- 
mattia
:wq!

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