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Date: Mon, 25 Jul 2011 09:30:11 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Jamie Paul Griffin <jpg@gnix.co.uk>
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	(wonkity.com [127.0.0.1]); Mon, 25 Jul 2011 09:30:11 -0600 (MDT)
Cc: freebsd-questions@freebsd.org
Subject: Re: virtualbox 4.0
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On Thu, 21 Jul 2011, Jamie Paul Griffin wrote:

> On Thu, Jul 21, 2011 at 07:38:23AM -0600, Warren Block wrote:
>
>> Recent versions of VirtualBox claim to be able to run a 64-bit VM on a
>> 32-bit host if the host CPU is 64-bit and has hardware virtualization
>> support: http://forums.virtualbox.org/viewtopic.php?p=33940
>> (search for "64-bit guest")
>
>> So far I've only seen guest kernel panics when booting the kernel on an
>> E8400 i386 FreeBSD host.
>
> I was using VB in a set-up like that up until a few weeks ago.

It works here now, too.  Apparently there's a difference between 
creating a 64-bit guest from the start, and creating a 32-bit guest and 
changing it to 64-bit afterwards.  Creating one that's 64-bit from the 
start works.