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Date: Fri, 30 Nov 2007 11:33:30 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
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To: Ingo Molnar <mingo@elte.hu>
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       Rusty Russell <rusty@rustcorp.com.au>, Andi Kleen <ak@suse.de>
Subject: Re: [patch 03/10] percpu: Make the asm-generic/percpu.h more "generic"
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Ahh this is a UP configuration! For that case we do not rebase the percpu 
area to address 0. And all the reports of success are until now for 
SMP/NUMA. Switching SMP on makes your config boot fine.

I thought I left UP handling unchanged. There must be some subtle 
change. Looking for it now.