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Message-ID: <4AA9EE21.5040007@gmail.com>
Date: Fri, 11 Sep 2009 08:28:49 +0200
From: Jiri Slaby <jirislaby@gmail.com>
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To: Lai Jiangshan <laijs@cn.fujitsu.com>
CC: peterz@infradead.org, rjw@sisk.pl, akpm@linux-foundation.org,
       rusty@rustcorp.com.au, linux-kernel@vger.kernel.org,
       Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 1/1] sched: fix cpu_down deadlock
References: <4AA0FEBF.7040104@gmail.com> <1252496510-11898-1-git-send-email-jirislaby@gmail.com> <4AA9E9B3.8060901@cn.fujitsu.com>
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On 09/11/2009 08:09 AM, Lai Jiangshan wrote:
> Does this bug occur when a cpu is being offlined or
> when the system is being suspended?
> Or Both?

Hi, I tried echo 0/1 > /sys/devices/system/cpu/cpu1/online in a loop,
but it didn't trigger the bug. It happened only on suspend/resume cycle
(in the end I found even swsusp in qemu suffers from this).
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