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Re: [Xen-devel] 3.0.5 rc3 paravirt save failures ?

To: Keir Fraser <keir@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] 3.0.5 rc3 paravirt save failures ?
From: "Daniel P. Berrange" <berrange@xxxxxxxxxx>
Date: Tue, 1 May 2007 14:04:07 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Steven Hand <Steven.Hand@xxxxxxxxxxxx>
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On Tue, May 01, 2007 at 02:01:45PM +0100, Keir Fraser wrote:
> On 1/5/07 13:47, "Steven Hand" <Steven.Hand@xxxxxxxxxxxx> wrote:
> > Looks like you're running off the top of the p2m ; your domain has 800Mb
> > 'maxmem' and hence should have a p2m covering 800 + 8 (slack) = 808Mb.
> > However entry 206868 is for the physical page just beyond that.
> > 
> > Can you check the value you're getting for p2m_size in xc_domain_save.c,
> > e.g. apply the following?
> And is your Xen precisely matched against libxc? I fixed XENMEM_maximum_gpfn
> to really return the last gpfn known to the guest, rather than the last plus
> one. Hence we now add one to that value to get p2m_size in xc_domain_save().
> But if this fixed xc_domain_save() was run against older Xen, you would have
> p2m_size too big by one.

Ahh, that could well be the problem. It looks like my HV / libxc are just
straddling your changeset :-(

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