linux-kernel - Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache

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Date:	Fri, 26 Feb 2010 09:04:56 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Andi Kleen <andi@...stfloor.org>
cc:	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Nick Piggin <npiggin@...e.de>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, haicheng.li@...el.com,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache_reap

On Fri, 26 Feb 2010, Andi Kleen wrote:

> Memory hotplug with node add never quite worked on x86 before,
> for various reasons not related to slab.

Ok but why did things break in such a big way?

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