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

From: Pallipadi, Venkatesh
Date: Tue Jun 12 2007 - 08:54:20 EST

>-----Original Message-----
>From: Thomas Gleixner [mailto:tglx@xxxxxxxxxxxxx]
>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@xxxxxxxxxxxxxxxxxxxx) 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.
>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.

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