linux-kernel - RE: [PATCH] cpufreq: remove dbs

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Message-ID: <7E82351C108FA840AB1866AC776AEC466972B8C5@orsmsx505.amr.corp.intel.com>
Date:	Tue, 23 Jun 2009 12:24:50 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Thomas Renninger <trenn@...e.de>, Dave Jones <davej@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Yinghai Lu <yinghai@...nel.org>, Avi Kivity <avi@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"mark.langsdorf@....com" <mark.langsdorf@....com>
Subject: RE: [PATCH] cpufreq: remove dbs_mutex

 

>-----Original Message-----
>From: Ingo Molnar [mailto:mingo@...e.hu] 
>Sent: Tuesday, June 23, 2009 12:14 PM
>To: Pallipadi, Venkatesh
>Cc: Thomas Renninger; Dave Jones; Rusty Russell; Linus 
>Torvalds; Yinghai Lu; Avi Kivity; Andrew Morton; Thomas 
>Gleixner; H. Peter Anvin; linux-kernel@...r.kernel.org; 
>cpufreq@...r.kernel.org; mark.langsdorf@....com
>Subject: Re: [PATCH] cpufreq: remove dbs_mutex
>
>
>* Pallipadi, Venkatesh <venkatesh.pallipadi@...el.com> wrote:
>
>> Mathieu Desnoyers sent a patch earlier that should address 
>this problem.
>> 
>> http://lkml.indiana.edu/hypermail/linux/kernel/0906.1/00331.html
>
>No, that patch has _not_ fixed the regression:
>
>  http://lkml.org/lkml/2009/6/8/563
>

The subsequent failure that Dave saw after that patch seemed to be related to dbs_mutex
http://lkml.org/lkml/2009/6/11/6

That should be be fixed by your original patch.

Thanks,
Venki--
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