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Subject: Re: [LOCKDEP BUG][2.6.36-rc1] xt_info_wrlock?
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>, netdev@vger.kernel.org,
        LKML <linux-kernel@vger.kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Patrick McHardy <kaber@trash.net>, Ingo Molnar <mingo@elte.hu>
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Date: Mon, 16 Aug 2010 20:48:48 +0200
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Le lundi 16 août 2010 à 20:36 +0200, Peter Zijlstra a écrit :
> On Mon, 2010-08-16 at 14:16 -0400, Steven Rostedt wrote:
> > @@ -729,8 +729,10 @@  static void get_counters(const struct
> > xt_table_info *t,
> >         local_bh_enable();
> >         /* Processing counters from other cpus, we can let bottom half
> > enabled,
> >          * (preemption is disabled)
> > +        * We must turn off lockdep to avoid a false positive.
> >          */
> >  
> > +       lockdep_off();
> >         for_each_possible_cpu(cpu) {
> > 
> nack!


Interesting.

Care to elaborate ?