linux-kernel - Re: patch "x86: MOVE PCI IO ECS code to x86/pci" breaks CPU hotplug

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Date:	Thu, 21 Aug 2008 18:46:49 +0200
From:	Robert Richter <robert.richter@....com>
To:	Yinghai Lu <yhlu.kernel@...il.com>
CC:	Jan Beulich <jbeulich@...ell.com>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: patch "x86: MOVE PCI IO ECS code to x86/pci" breaks CPU hotplug

On 21.08.08 09:25:37, Yinghai Lu wrote:
> On Thu, Aug 21, 2008 at 6:29 AM, Robert Richter <robert.richter@....com> wrote:
> > On 21.08.08 13:59:33, Jan Beulich wrote:
> >> Even worse - this would even try to access the MSR on non-AMD CPUs
> >> (currently probably prevented just by the fact that only AMD ones use
> >> family values of 0x10 or higher).
> >
> > Ups, really worse. Code was AMD specific before and became
> > generic. Will fix this.
> >
> 
> it seems you didn't address the concern about hotplug as you promised
> 
> http://lkml.org/lkml/2008/6/13/151

Yinghai, I know. You made a comment on this in reply to the patch and
this is still an open issue. Really, will fix this. :-)

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: robert.richter@....com

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