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

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Message-ID: <1266665331.12525.0.camel@jlt3.sipsolutions.net>
Date:	Sat, 20 Feb 2010 12:28:51 +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 Sat, 2010-02-20 at 17:06 +0800, Américo Wang wrote:
> On Sat, Feb 20, 2010 at 4:56 PM, Johannes Berg
> <johannes@...solutions.net> wrote:
> > On Sat, 2010-02-20 at 15:13 +0800, Américo Wang wrote:
> >
> >> Does my following untested patch help?
> >
> > Sorry, no. I'll hook up a screen to the box after I return from the
> > fresh market.
> >
> 
> Are you sure there is no difference? :-/

It deadlocks after

Disabling non-boot CPUs ...

Not sure if that counts as a difference...

johannes

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