Windows 2008 R2 VM Guest live migration issue. KVM on RHEL6.1

Hi All,

I'm very new to this forum. Apologies if its not the right forum for the question - please move the topic for me if that is the case.

Basically, I have 2 RHEL6.1 machines with drbd blocks where I have VM guests installed.

Drbd replicates guests images. I've installed Win2k3-R2-32bit and Win2k8-R2-64bit guests. Both installed and run normally. However when I try consequent live migration of those guests between machines (qemu+ssh, passwordless authentication), host1->host2->host1->host2->host1, etc. ,Win2k3 guest migrates with no problems, whereas Win2k8 guest migrations fail intermittently, and virtual machine stops with error:

error: cannot send monitor command '{"execute":"query-migrate"}': Connection reset by peer
 

I have installed latest version of virtio drivers too (but they look exactly the same in windows - version 6.0.209.605, only the modification date is different). virtio-win-1.3.3-0.el6.noarch.

That hasn't helped.

I have got exactly the same error for both live and test environments, for live environment I have a couple of Dell R610s and for test environment I have a couple of Dell PCs. Any ideas ? I can provide more details if required.

Regards,

Alex