RE: [PATCH] HPET reenabling after suspend-resume

[Pallipadi, Venkatesh]

>-----Original Message-----
>From: Andi Kleen [mailto:ak@xxxxxxx] 
>Sent: Friday, October 22, 2004 6:07 PM
>To: Pallipadi, Venkatesh
>Cc: akpm@xxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; ak@xxxxxxx; 
>pavel@xxxxxx
>Subject: Re: [PATCH] HPET reenabling after suspend-resume
>
>On Fri, Oct 22, 2004 at 05:26:59PM -0700, Venkatesh Pallipadi wrote:
>> 
>> hpet hardware seems to need a little prodding during resume 
>for it to start 
>> sending the timer interupts again. Attached patch does it 
>for both i386 
>> and x86_64.
>
>Hmm, what HPET hardware? It must have worked on some machines already,
>otherwise suspend/resume would have never worked on many AMD x86-64 
>machines. 
>

That's interesting.... 
I ran into this issue where resume was hanging at 8259_resume 
code as the HPET was not counting. That was on an ICH4 based Pentium-M
box.

I will try it on come ICH5 based hardware and see whether it is really 
Required, for both i386 and x86-64, on a wider range of systems.

Thanks,
venki
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