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Re: [Xen-users] Xen 3.4.1-rc10: Cannot restore/migrate 32-bit HVM domU (

To: Joshua West <jwest@xxxxxxxxxxxx>
Subject: Re: [Xen-users] Xen 3.4.1-rc10: Cannot restore/migrate 32-bit HVM domU (W2K3 Server) on 64-bit dom0
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Fri, 31 Jul 2009 17:48:19 +0300
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On Fri, Jul 31, 2009 at 10:39:42AM -0400, Joshua West wrote:
> Hi Pasi,
> Regarding your questions below:
>   * I am running linux-2.6.18-xen.hg (changeset 922 ... aka the latest).
>   * dom0 OS is RHEL 5.3; however I am using all custom built rpms (which
> I wrote) for Xen 3.4.1-rc10.
>   * I haven't tried this on any kernel other than nor do I
> wish to.

Ok, so that's all good. 

>   * The Windows machine has the GPLPV drivers installed, but the issue
> occurs even with them disabled.
> I will now reformat the Windows VM and do a fresh install, just to fully
> eliminate the possibility of GPLPV causing the issue.

That's good to try. Also try with vcpus=1, if you had multiple vcpus for the
HVM guest.

> If the issue still persists with the fully redone 32-bit HVM domU on my
> 64-bit dom0's, I will repost the thread on xen-devel.

Yes, you should.

> If you or anybody else needs the kernel configurations, my RPM .spec
> files to see how things were built, or the domU saved copy itself, no
> problem - just let me know and I'll post it on the web.

Would be nice to take a look at those..

-- Pasi

> Thanks.
> Pasi Kärkkäinen wrote:
> > What dom0 kernel you are running?
> >
> > If something else than linux-2.6.18-xen.hg please try with that instead.
> >> Also if you can reproduce this problem running linux-2.6.18-xen on dom0,
> >> then please send an email to xen-devel about this. Keir wants to release 
> >> Xen
> >> 3.4.1 final early next week, and this sounds like something that might be
> >> good to check before the release.
> >>
> >> If this problem happens running for example Debian lenny 2.6.26-xen kernel 
> >> in dom0,
> >> or some other 2.6.27, 2.6.29, 2.6.30 dom0 kernel then it _could_ be a bug 
> >> in
> >> them, and not in Xen.
> >>
> >>     
> >
> > Oh, one more thing: If you are running GPLPV drivers in Windows, please try
> > without them!
> >
> > -- Pasi
> >
> >   
> -- 
> Joshua West
> Senior Systems Engineer
> Brandeis University
> http://www.brandeis.edu

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