linux-kernel - Re: No, really, stop trying to delete slab until you've finished making slub perform as well

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Message-ID: <48A444FC.8090908@linux-foundation.org>
Date:	Thu, 14 Aug 2008 09:45:16 -0500
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
CC:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	KOSAKI Motohiro <m-kosaki@...es.dti.ne.jp>,
	Matthew Wilcox <matthew@....cx>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Mel Gorman <mel@...net.ie>, andi@...stfloor.org,
	Rik van Riel <riel@...hat.com>
Subject: Re: No, really, stop trying to delete slab until you've finished
 making slub perform as well

Pekka Enberg wrote:
> This patch hard locks  on my 2-way 64-bit x86 machine (sysrq doesn't 
> respond) when I run hackbench.
Hmmm.. Then the issue may be different than we thought. Lock may be 
taken recursively in some situations.
Can you enable lockdep?


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