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Date: Thu, 22 Mar 2007 10:06:32 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jarek Poplawski <jarkao2@o2.pl>, Oleg Nesterov <oleg@tv-sign.ru>,
       Neil Brown <neilb@suse.de>, Andrew Morton <akpm@linux-foundation.org>,
       Folkert van Heusden <folkert@vanheusden.com>,
       linux-kernel@vger.kernel.org, "J. Bruce Fields" <bfields@fieldses.org>
Subject: Re: [PATCH] lockdep: lockdep_depth vs. debug_locks Re: [2.6.20] BUG: workqueue leaked lock
Message-ID: <20070322090632.GB15328@elte.hu>
References: <17918.11420.155569.991473@notabene.brown> <20070320093753.GA1751@ff.dom.local> <20070320160759.GA107@tv-sign.ru> <20070321080510.GA1939@ff.dom.local> <20070321144620.GC78@tv-sign.ru> <20070321151651.GA4547@ff.dom.local> <20070321152935.GA215@tv-sign.ru> <20070321181635.GA570@tv-sign.ru> <20070322061119.GA1466@ff.dom.local> <1174548157.16411.4.camel@twins>
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* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

> On Thu, 2007-03-22 at 07:11 +0100, Jarek Poplawski wrote:
> > Here is some joke:
> > 
> > [PATCH] lockdep: lockdep_depth vs. debug_locks
> > 
> > lockdep really shouldn't be used when debug_locks == 0!
> 
> This happens then lockdep reports a fatal error, at which point
> it will stop tracking locks and leave whatever state was there.
> 
> > Reported-by: Folkert van Heusden <folkert@vanheusden.com>
> > Inspired-by: Oleg Nesterov <oleg@tv-sign.ru>
> > Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
> 
> This looks sane, thanks for figuring this out.
> 
> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

Acked-by: Ingo Molnar <mingo@elte.hu>

	Ingo