11-RELEASE and live migration

[Hoyer-Reuther, Christian]

Hello,

I cannot select the source host as destination when I migrate from XenCenter.

All 3 hosts use the same hardware. Disk backend for all VMs is iSCSI.

Regards,

Christian

> -----Ursprüngliche Nachricht-----
> Von: Roger Pau Monné [mailto:roger.pau at citrix.com]
> Gesendet: Montag, 12. Dezember 2016 11:32
> An: Hoyer-Reuther, Christian; h at dhcp-3-221.uk.xensource.com
> Cc: freebsd-xen at freebsd.org; owner-freebsd-xen at freebsd.org
> Betreff: Re: 11-RELEASE and live migration
> 
> On Thu, Dec 08, 2016 at 10:33:37AM +0100, Hoyer-Reuther, Christian wrote:
> > I did some tests and I see the problem too.
> >
> > XenServer 6.5 SP1 with almost all patches (3 hosts in pool), FreeBSD 11.0-
> RELEASE-p2, xe-guest-utilities-6.2.0_2 installed via pkg.
> >
> > First migration from host 3 to host 1 is ok.
> >
> > Some seconds later I start a new migration from host 1 to host 2 and when
> migration finishes (as seen in XenCenter) then the VM switches to the
> VGABios screen ("Plex86/Bochs VGABios (PCI) current-cvs 01 Sep 2016 ...
> cirrus-compatible VGA is detected"). The VM seem to hang and does not
> respond. In XenCenter I see that all the CPU's of the VM go up to 100
> percent.
> >
> > Then after 17 minutes the VGABios screen disappears and I see the console,
> the CPU usage as seen in XenCenter goes down. I logged in as root before I
> started the first migration and root is still logged in. So it was a hang
> and not a reboot.
> >
> > 20 minutes later I start a new migration from host 2 to host 3 and the
> problem occurs again.
> >
> > This problem does not exist with 10.3-RELEASE on the same hosts.
> 
> Hello,
> 
> So far I've only tested local migration (migration using the same host as
> source
> and destination), and that seems to work fine (I've done +50
> consecutive migrations with only 10s separation between them). Is there a
> change
> that you could also try to reproduce this with local migration?
> 
> Are you using the same exact hardware on the source and the destination? Are
> you
> all using iSCSI as the disk backend for this VMs?
> 
> Thanks, Roger.