linux-kernel - Re: [RFC 0/5] percpu: Optimize percpu accesses

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Date:	Fri, 18 Jul 2008 08:52:24 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Mike Travis <travis@....com>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC 0/5] percpu: Optimize percpu accesses


* Mike Travis <travis@....com> wrote:

> Mike Travis wrote:
> > Ingo Molnar wrote:
> >> * Ingo Molnar <mingo@...e.hu> wrote:
> >>
> >>>> This patchset provides the following:
> >>>>
> >>>>   * Cleanup: Fix early references to cpumask_of_cpu(0)
> >>>>   * Generic: Percpu infrastructure to rebase the per cpu area to zero
> >>>>   * x86_64: Fold pda into per cpu area
> >>>>   * x86_64: Rebase per cpu variables to zero
> >>> thanks Mike - i've started testing it in -tip. One small merge fallout 
> >>> fix is below. (it's for the new generic-ipi topic that was not in 
> >>> tip/master yet when you merged percpu-zerobased to it)
> >> ok, -tip testing found an early boot crash caused by your patchset, on 
> >> 64-bit x86:
> 
> Hi Ingo,
> 
> Which gcc version are you using?

vanilla gcc-4.2.3 (unpatched).

	Ingo
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