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Subject: Re: Linux 3.1-rc4
From: Peter Zijlstra <peterz@infradead.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Date: Tue, 30 Aug 2011 11:14:30 +0200
In-Reply-To: <20110830070715.GA15134@liondog.tnic>
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	 <20110830070715.GA15134@liondog.tnic>
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On Tue, 2011-08-30 at 09:07 +0200, Borislav Petkov wrote:
> On Sun, Aug 28, 2011 at 09:52:43PM -0700, Linus Torvalds wrote:
> > We're back on track on weekly -rc releases.
> 
> Peter,
> 
> I get the following lockdep splat on -rc4, it looks like load balancing
> something.
> 
> [ 5183.478132] ------------[ cut here ]------------
> [ 5183.478155] WARNING: at kernel/lockdep.c:690 __lock_acquire+0x189/0x916()

that's:

look_up_lock_class():
                        WARN_ON_ONCE(class->name != lock->name);

That's something that really shouldn't happen and my first guess is that
you're suffering some memory corruption.