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Subject: Re: [BUG] Lockdep recursive locking in kmem_cache_free
From: Thomas Gleixner <tglx@linutronix.de>
Reply-To: tglx@linutronix.de
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
       Arjan van de Ven <arjan@infradead.org>,
       Christoph Lameter <clameter@sgi.com>
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Date: Fri, 28 Jul 2006 08:14:07 +0200
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On Fri, 2006-07-28 at 08:22 +0300, Pekka Enberg wrote:
> Hi Thomas,
> Looks bad.
> 
>   cache_reap
>   reap_alien	(grabs l3->alien[node]->lock)
>   __drain_alien_cache
>   free_block
>   slab_destroy	(slab management off slab)
>   kmem_cache_free
>   __cache_free
>   cache_free_alien (recursive attempt on l3->alien[node] lock)
> 
> Christoph?

If you need more info, I can add debugs. It happens every bootup.

	tglx