linux-kernel - Re: [BUG] Lockdep recursive locking in kmem_cache

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Message-ID: <Pine.LNX.4.64.0607280833510.18635@schroedinger.engr.sgi.com>
Date:	Fri, 28 Jul 2006 08:35:42 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Thomas Gleixner <tglx@...utronix.de>
cc:	Pekka Enberg <penberg@...helsinki.fi>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...radead.org>,
	alokk@...softinc.com
Subject: Re: [BUG] Lockdep recursive locking in kmem_cache_free

On Fri, 28 Jul 2006, Thomas Gleixner wrote:

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

Could you tell me why _spin_lock and _spin_unlock seem 
to be calling into the slab allocator? Also what is child_rip()? Cannot 
find that function upstream.

There should be no lock recursion here because we are talking about alien 
cache arrays on different nodes.
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