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Date: Tue, 15 Apr 2008 14:24:55 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Ingo Molnar <mingo@elte.hu>
cc: Linus Torvalds <torvalds@linux-foundation.org>,
       Pekka Enberg <penberg@cs.helsinki.fi>, linux-kernel@vger.kernel.org,
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       "Rafael J. Wysocki" <rjw@sisk.pl>, Yinghai.Lu@sun.com, apw@shadowen.org,
       travis@sgi.com, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [bug] SLUB + mm/slab.c boot crash in -rc9
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On Tue, 15 Apr 2008, Ingo Molnar wrote:

> > static DEFINE_PER_CPU(char, dummy)[10000];
> 
> what's the guarantee that it's at the end of the section? I'd like to 
> pad the per cpu areas at their end. (doubling their size is a good way 
> to achieve that)

No guarantee. Its up to the linker. Sorry. We could add a new percpu.last 
section but that requires a number of changes to linking.