Re: [Xen-users] RE: [Xen-devel] Xen-3.0.3 migration problems

[Adam Seering <aseering@xxxxxxxxx>]

On Dec 29, 2006, at 5:05 AM, Keir Fraser wrote:

> On 28/12/06 5:15 pm, "Adam Seering" <aseering@xxxxxxxxx> wrote:
>
> > I'm having this same problem.  The relocation service is enabled on
> > both machines; neither has a firewall (sure, I care about
> > security...), and there is no firewall between them.
> >
> > For a live migration, do the dom0 kernels and the source/target PC's
> > hardware have to be the same?  I'm migrating from a stock Debian  
> > Etch-
> > based Xen AMD64 system on a Pentium D 8xx (no HVM) to a Fedora Core 6
> > Xen AMD64 system on a Pentium D 9xx, with HVM support enabled.
> Migrating to a newer (more capable) processor should work. It's when
> features silently disappear that guests can get upset. The dom0  
> kernel does
> not matter but the version of the Xen toolstack might -- did you  
> install Xen
> and tools yourself on both boxes from a consistent version?
I did not, actually; I'm using the stock versions from the FC6 /  
Debian Etch repo's.  I could try that.
One of these machines just lost a hard disk; I'm not eager to try  
anything interesting until I can replace it, so I'll play around with  
this when the new drive comes in.
A recent e-mail mentioned that migration machines have to be on the  
same L2 subnet (I missed that line in the Xen manual).  These  
machines aren't; they're in different buildings, with IP routing  
between them (though the connection speed and latency are very  
good).  I'll try putting the machines on the same subnet.

> /var/log/xen/xend.log and /var/log/xen/xend-debug.log probably have
> interesting info if things are going wrong (the logs may be big: if  
> so it's
> the tail that's interesting).
OK; I'll take a look at those.

Thanks,
Adam




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