linux-kernel - Re: [PROBLEM] 2.6.22-rc2 panics on x86-64 with slub

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Message-ID: <Pine.LNX.4.64.0705211524060.29480@schroedinger.engr.sgi.com>
Date:	Mon, 21 May 2007 15:27:12 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Jens Axboe <jens.axboe@...cle.com>,
	Hugh Dickins <hugh@...itas.com>,
	Srihari Vijayaraghavan <sriharivijayaraghavan@...oo.com.au>,
	Oliver Xymoron <oxymoron@...te.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PROBLEM] 2.6.22-rc2 panics on x86-64 with slub

Ok booting SLUB without "slub_debug" and having

CONFIG_DEBUG_LOCK_ALLOC
CONFIG_LOCKDEP

will trigger the problem.

So I guess the issue is that lockdep does a slab alloc while we get the 
slab lock during slab alloc?

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