[fedora-virt] live migration from CentOS 6.2 to 6.1 fails

[Gianluca Cecchi]

Just to confirm that upgrading another node to rh el 6.2, I'm able to
migrate 6.2 to 6.2 hosted vm.

Summarizing, starting from environment like this:
6.1 hosts
qemu-kvm-0.12.1.2-2.160.el6_1.8.x86_64
libvirt-0.8.7-18.el6_1.1.x86_64
kernel-2.6.32-131.17.1.el6.x86_64

6.2 hosts
qemu-kvm-0.12.1.2-2.209.el6_2.1.x86_64
libvirt-0.9.4-23.el6_2.1.x86_64
kernel-2.6.32-220.2.1.el6.x86_64

symbol "--->" corresponds to live migration

6.1 --> 6.1 ok
6.1 --> 6.2 ok
6.2 --> 6.2 ok

but

6.2 --> 6.1 ko

Gianluca