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Date: Thu, 22 Mar 2007 08:13:14 +0100
From: Jarek Poplawski <jarkao2@o2.pl>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>, Neil Brown <neilb@suse.de>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Folkert van Heusden <folkert@vanheusden.com>,
       linux-kernel@vger.kernel.org, "J\. Bruce Fields" <bfields@fieldses.org>,
       Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] lockdep: lockdep_depth vs. debug_locks Re: [2.6.20] BUG: workqueue leaked lock
Message-ID: <20070322071314.GB2065@ff.dom.local>
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> <20070321222802.0e09f0c2.akpm@linux-foundation.org>
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On Wed, Mar 21, 2007 at 10:28:02PM -0800, Andrew Morton wrote:
...
> I assume that some codepath is incrementing ->lockdep_depth even when
> debug_locks==0.  Isn't that wrong of it?
> 

lockdep simply stops to update lockdep_depth just after (during)
a bug or a WARN.

Jarek P.