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

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Date:	Sun, 21 Feb 2010 11:17:20 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Américo Wang <xiyou.wangcong@...il.com>
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 Sun, 2010-02-21 at 17:51 +0800, Américo Wang wrote:
> 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!

No change, sorry, still hangs right after "Disabling non-boot CPUs ..."
before the machine turns off.

johannes

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