Message-ID: <44DCF5C1.4040506@rtr.ca>
Date: Fri, 11 Aug 2006 17:25:21 -0400
From: Mark Lord <lkml@rtr.ca>
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To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Cc: Dave Jones <davej@redhat.com>, Linux Kernel <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@osdl.org>
Subject: Re: cpufreq stops working after a while
References: <EB12A50964762B4D8111D55B764A84546F8EC3@scsmsx413.amr.corp.intel.com> <44DCE8BA.2070601@rtr.ca> <44DCEAF7.5020005@rtr.ca> <20060811210104.GL26930@redhat.com> <44DCF360.7050305@rtr.ca>
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Mark Lord wrote:
>
>> Venki wrote:
>> Looks like there are thermal events happening that is causing CPU limits
>> to reduce. Are you running anything on the CPU when this happens. Is
>> there a thermal interface in /proc/acpi that can give you the current
>> temperature of the system?
> 
> 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?

Cheers
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