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

To: Steven Hand <Steven.Hand@xxxxxxxxxxxx>, "Daniel P. Berrange" <berrange@xxxxxxxxxx>
Subject: Re: [Xen-devel] 3.0.5 rc3 paravirt save failures ?
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Tue, 01 May 2007 14:01:45 +0100
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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.

 -- Keir

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