linux-kernel - RE: [stable] [PATCH] ACPI: Move timer broadcast and pmtimer accessbefore C3 arbiter shutdown

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Message-ID: <653FFBB4508B9042B5D43DC9E18836F50101D9F3@scsmsx415.amr.corp.intel.com>
Date:	Tue, 12 Jun 2007 05:54:04 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"Thomas Gleixner" <tglx@...utronix.de>,
	"Chris Wright" <chrisw@...s-sol.org>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"LKML" <linux-kernel@...r.kernel.org>, "Andi Kleen" <ak@...e.de>,
	"Udo A. Steinberg" <us15@...inf.tu-dresden.de>,
	"Dave Jones" <davej@...hat.com>, "Ingo Molnar" <mingo@...e.hu>,
	"Arjan van de Ven" <arjan@...radead.org>,
	"Stable Team" <stable@...nel.org>, "Len Brown" <lenb@...nel.org>
Subject: RE: [stable] [PATCH] ACPI: Move timer broadcast and pmtimer accessbefore C3 arbiter shutdown

 

>-----Original Message-----
>From: Thomas Gleixner [mailto:tglx@...utronix.de] 
>Sent: Tuesday, June 12, 2007 1:26 AM
>To: Chris Wright
>Cc: Andrew Morton; LKML; Andi Kleen; Udo A. Steinberg; 
>Pallipadi, Venkatesh; Dave Jones; Ingo Molnar; Arjan van de 
>Ven; Stable Team; Len Brown
>Subject: Re: [stable] [PATCH] ACPI: Move timer broadcast and 
>pmtimer accessbefore C3 arbiter shutdown
>
>On Mon, 2007-06-11 at 18:07 -0700, Chris Wright wrote:
>> * Andrew Morton (akpm@...ux-foundation.org) wrote:
>> > hm, this needs a bit of help to get it to work against 
>Len's current tree.
>> 
>> Here's some help, compile tested only.  Udo/Thomas, was this found to
>> be root cause of a real bug?  I didn't want this to get lost if it's
>> still meant to be relevant for -stable.
>
>Chris,
>
>I fixed this against -mm already. I don't think that it is relevant for
>stable. The issue was found with Venkis hpet force enable patches on a
>ICH4 system. I doubt that any of those systems has hpet enabled in the
>BIOS. It should not affect later ICH chip sets. Venki, is this 
>correct ?
>

Yes. This issue is only when HPET timer is used on ICH4. And by default 
HPET is not enabled on those chipsets. So, we don't need this patch
for stable.

Thanks,
Venki
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