PV i386 patch

[Alan Cox]

On 12/20/2011 13:57, Sean Bruno wrote:
> On Tue, 2011-12-20 at 10:49 -0800, Alan Cox wrote:
>> On 12/20/2011 07:28, Sean Bruno wrote:
>>>> The code that panics shouldn't even exist in the Xen pmap.  Try the
>>>> attached patch.
>>>>
>>>> Alan
>>>>
>>> Indeed .... how on earth did we ever use this stuff?  :-)
>>>
>>> Tested to 2G on ref9-xen32.f.o .... should I go any higher?
>> Sure.  Right now, I don't know of any reason that it should crash with
>> more memory.  :-)
>>
>> Do either of you know if there is a PR in gnats for this 768 MB
>> limitation bug that I should mention in the commit log?
>>
>> Alan
>>
>
> No, I just checked and I didn't put a PR in ... lame.
>
> I think I discussed it with colin or kip, but I don't remember if we
> ever figured out anything else.
>

Ok.  I'll commit the patch shortly.  (Note that what I'll commit will 
remove another bit of unnecessary code.)

Alan