linux-kernel - Re: [2.6.33-rc5] Weird deadlock when shutting down

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Message-ID: <2375c9f91002210151i6fe3f769k72a8a6a3485d8cf5@mail.gmail.com>
Date:	Sun, 21 Feb 2010 17:51:14 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [2.6.33-rc5] Weird deadlock when shutting down

On Sat, Feb 20, 2010 at 9:57 PM, Johannes Berg
<johannes@...solutions.net> wrote:
> On Sat, 2010-02-20 at 21:44 +0800, Américo Wang wrote:
>
>> That message is displayed before shutting down the devices.
>>
>> To verify, you can add some printk() in the end of
>> __cpufreq_remove_dev(), or enable CONFIG_CPU_FREQ_DEBUG.
>
> That is already enabled.
>

Ok, I got it.

Could you test the patch below? Thanks!

----------------->

Signed-off-by: WANG Cong <xiyou.wangcong@...il.com>

View attachment "drivers-cpufreq-fix-deadlock.diff" of type "text/plain" (2078 bytes)