linux-kernel - Re: cpufreq stops working after a while

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Message-ID: <20060818151122.GA8275@ucw.cz>
Date:	Fri, 18 Aug 2006 15:11:22 +0000
From:	Pavel Machek <pavel@....cz>
To:	Mark Lord <lkml@....ca>
Cc:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: cpufreq stops working after a while

Hi!

> >There are thermal thingies in /proc, and I'm watching 
> >the temperature
> >value from there (62C --> 65C), and the trip_points 
> >value is 95C..
> >
> >Think it's thermal?
> 
> Yup, thermal.
> Trips shortly after I see 66C in 
> /proc/acpi/thermal_zone/THM/temperature
> 
> If I stop number crunching for a bit, the temperature 
> drops down to the
> low 50's, and the max freq then gets set back to 1100.
> 
> Mmmm.. is there a way to control the high/low thermostat 
> values there?

trip_points should be writeable... but you do not have passive cooling
enabled there?!

-- 
Thanks for all the (sleeping) penguins.
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