linux-kernel - Re: lockdep and oops_in

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Message-Id: <20101102.135454.104042709.davem@davemloft.net>
Date:	Tue, 02 Nov 2010 13:54:54 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	airlied@...il.com
Cc:	yong.zhang0@...il.com, peterz@...radead.org, mingo@...hat.com,
	jbarnes@...tuousgeek.org, linux-kernel@...r.kernel.org
Subject: Re: lockdep and oops_in_progress

From: Dave Airlie <airlied@...il.com>
Date: Wed, 3 Nov 2010 06:51:07 +1000

>> commit e0fdace10e75dac67d906213b780ff1b1a4cc360
>> Author: David Miller <davem@...emloft.net>
>> Date:   Fri Aug 1 01:11:22 2008 -0700
>>
>>    debug_locks: set oops_in_progress if we will log messages.
>>
>>    Otherwise lock debugging messages on runqueue locks can deadlock the
>>    system due to the wakeups performed by printk().
>>
>>    Signed-off-by: David S. Miller <davem@...emloft.net>
>>    Signed-off-by: Ingo Molnar <mingo@...e.hu>
>>
>> Seems we can revert that commit now because of 'robustify printk'.

I completely agree, this can definitely be reverted.

Thanks!
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