Fix for GPE livelock on HPs

[Nate Lawson]

Alexandre "Sunny" Kovalenko wrote:
> On Sat, 2008-01-12 at 14:30 -0800, Nate Lawson wrote:
>> I've committed the below patch and want to MFC it to 7.0.  To do this, I
>> need people to test this quickly.  It probably has no effect in 6.x and
>> probably doesn't apply cleanly there.
>>
>> Please try this patch if you have a laptop and 7.x.  If you have
> I assumed you mean "a laptop", not "an HP laptop" ;) With this in mind,
> on IBM ThinkPad X60 (1709-73U) and RELENG_7 as of 20:46 January 12 (EST)
> I see no obvious regressions after applying your patch.
> 
> If there is any specific testing that you want performed, please, let me
> know and I will be happy to do it tomorrow.

Excellent. I was kinda vague because I have two "it fixes my HP laptop"
reports and I wanted broader testing so that after the MFC I didn't hear
"it breaks my Toshiba".  :)

-Nate