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

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Date:	Mon, 22 Feb 2010 09:39:28 +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 Mon, 2010-02-22 at 16:19 +0800, Américo Wang wrote:

> >> Could you test the patch below? Thanks!
> >
> > No change, sorry, still hangs right after "Disabling non-boot CPUs
> ..."
> > before the machine turns off.
> >
> 
> Oh, I see, then this will be another problem.
> 
> My previous patch is to fix the cpufreq lockdep warning mentioned
> in Benjamin's report, so this hang should be caused by other problem,
> not the cpufreq lockdep problem.

Right, sounds like -- and I haven't seen that lockdep report during
shutdown any more.

johannes

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