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Re: [Xen-users] VT 64bit kernel with >4Gb RAM

To: Guillaume Lenoir <glenoir@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] VT 64bit kernel with >4Gb RAM
From: Mats Rynge <rynge@xxxxxxxxx>
Date: Fri, 22 Sep 2006 21:16:59 -0400
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Guillaume Lenoir wrote:
> Use the xen-hypervisor-3.0-i386-pae package, instead of
> xen-hypervisor-3.0-i386.
> It failed saying my kernel isn't pae.
> Isn't PAE for 32 bit systems anyway ? I understood 64 bit systems didn't
> need it (provided they have a 64bit kernel)
> I'm just trying to avoid useless overhead.
> Aim is to get 64 bit OS virtualised, don't I specifically need dom0 to
> run 64bit to do that anyway ?

I missed your reply on this, so sorry it took some time to get back to you.

Are you actually running a 64 bit version? Debian Sarge was not
officially released for x86_64, and if you followed the guide you
referred to, you might have some i386 packages in there. Also, the
output from uname looks like it is a x86 kernel (2.6.16-1-xen-686)

I have a couple of 2950s running a custom x86 kernel with pae and that
works fine.

Mats Rynge
Renaissance Computing Institute <http://www.renci.org>

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