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Date:	Sat, 09 Jan 2010 21:09:47 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	Ray Lee <ray-lk@...rabbit.org>
CC:	Arjan van de Ven <arjan@...radead.org>,
	Dimitrios Apostolou <jimis@....net>,
	Alex Chiang <achiang@...com>, Len Brown <lenb@...nel.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yinghai Lu <yinghai@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: High cpu temperature with 2.6.32, bisection shows commit 69d258
    (fwd)

On 01/09/2010 08:07 PM, Ray Lee wrote:
> On Sat, Jan 9, 2010 at 4:42 PM, Arjan van de Ven<arjan@...radead.org>  wrote:
>> basically it appears that your machine, when the kernel asks for C2,
>> exits C2 immediately again.
>>
>> The old algorithm somehow caught this and stopped asking for C2 most of
>> the time; the new algorithm doesn't see any activity and asks for C2
>> again.
>
> This change of behavior will certainly bite more users out there. Is
> there any way we can detect the systems that aren't honoring the C2
> request and limit back to C1?

That seems like it would be a better approach, rather than adding to a 
DMI list which is almost certainly incomplete.. We've got too many DMI 
special cases in the kernel already.
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