From owner-freebsd-xen@FreeBSD.ORG  Tue Dec 20 18:50:02 2011
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Date: Tue, 20 Dec 2011 12:49:59 -0600
From: Alan Cox <alc@rice.edu>
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Cc: "xen@freebsd.org" <xen@freebsd.org>
Subject: Re: PV i386 patch
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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