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Re: [Xen-users] FreeBSD under Xen

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] FreeBSD under Xen
From: "Albert Bachand" <albertb@xxxxxxxxx>
Date: Fri, 8 Dec 2006 14:55:27 -0500
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On 12/8/06, Daniel P. Berrange <berrange@xxxxxxxxxx> wrote:
On Fri, Dec 08, 2006 at 02:44:33PM -0500, Albert Bachand wrote:
> Hello,
>
> I'm trying to get FreeBSD to run under Xen. I've compiled Xen 3.0.3
> from sources. I first compiled it with a simple 'make world' and got
> linux to work both as dom0 and as well as a domU. Now, I'm trying to
> get FreeBSD. I followed the tutorial at:
> http://www.yuanjue.net/xen/howto.html but get the follwing error when
> booting FreeBSD:
>
> Error: (22, 'Invalid argument')
>
> >From what I understand this is due to the FreeBSD kernel being
> compiled with PAE while my Xen isn't. So I re-compiled Xen with
> XEN_TARGET_X86_PAE=y but now my linux dom0 won't boot anymore...

You need to re-comple the hypervisor too. The HyperVisor, Dom0 and DomU
must all have exactly same PAE settings or bad stuff happens.

Doesn't 'make world' build the HyperVisor as well?
Also, does that error really mean that I need PAE? Is there a way to
run FreeBSD without PAE?

Thanks!

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