Message-ID: <442BEBED.8080205@lawatsch.at>
Date: Thu, 30 Mar 2006 16:32:13 +0200
From: Philip Lawatsch <philip@lawatsch.at>
Organization: WaUG HQ Graz
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To: Alistair John Strachan <s0348365@sms.ed.ac.uk>
Cc: JimD <Jim@keeliegirl.dyndns.org>, linux-kernel@vger.kernel.org
Subject: Re: AMD64 overclock issue with 2.6.16 but not with 2.6.15
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Alistair John Strachan wrote:
> On Wednesday 29 March 2006 20:35, JimD wrote:
>> Do any one know of any other issues with amd64 and the
>> 2.6.16 series?  I have run into a weird issue.
> [snip]
>> The bogomips are showing the same though the kernel is not reporting
>> the correct MHz.  If I reboot and check the BIOS, the correct MHz is
>> reported.  I have not run any CPU benchmarks to see if performance is
>> really going back down to 2000 MHz.
>>
>> Does anyone have a clue what could be causing this?
> 
> At a guess, it sounds like you're trying to use cpufreq on an overclocked CPU, 
> a definitely no-no. Check your config for this option, remove it if desired.

Why is this a nono? I've been using that for quite a while without
problems. It seems that even though I overclocked it the system is
stable at all voltage / frequency steps. (I only modified the reference
clock and not the core voltages)

Also, 2.16 only shows a wrong value, the cpu is clocked at the "correct"
(overclocked) frequency, at least the bogomips value matches what I'm
expecting.

kind regards Philip

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