linux-kernel - Re: [Bug #13424] possible deadlock when doing governor switching

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Message-ID: <20090629012558.GA22666@Krystal>
Date:	Sun, 28 Jun 2009 21:25:58 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Shaohua Li <shaohua.li@...el.com>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Subject: Re: [Bug #13424] possible deadlock when doing governor switching

* Rafael J. Wysocki (rjw@...k.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.29 and 2.6.30.
> 
> The following bug entry is on the current list of known regressions
> introduced between 2.6.29 and 2.6.30.  Please verify if it still should
> be listed and let me know (either way).
> 

Yep, it still exists. Venkatesh Pallipadi from Intel is working on it.
We need to figure out a proper way to fix policy rwlock vs dbs_mutex vs
timer mutex dependency.

Mathieu

> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=13424
> Subject		: possible deadlock when doing governor switching
> Submitter	: Shaohua Li <shaohua.li@...el.com>
> Date		: 2009-05-31 16:36 (29 days old)
> References	: http://www.spinics.net/lists/cpufreq/msg00711.html
> Handled-By	: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
> 
> 
> 

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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