[libvirt] Problems with live migration

[Toni F. [ackstorm]]

Hi all,

I have working with Openstack Folsom and with Glusterfs as shared
storage for /instances. All working fine, but when i'm trying to use
"nova live-migration":

2013-03-07 18:33:42 3140 ERROR nova.virt.libvirt.driver [-] [instance:
773164b5-5e5c-4328-a762-d91f50f2ac33] Live Migration failure: Timed out
during operation: cannot acquire state change lock

I know that the real command that openstack executes

virsh migrate --live instance-00000036
qemu+ssh://nova-compute-lnx001/system

When i execute that command the same error is showed

error: Timed out during operation: cannot acquire state change lock

Versions:

ii  libvirt-bin                      
0.9.13-0ubuntu12.2~cloud0                           programs for the 
libvirt library
ii  libvirt0                         
0.9.13-0ubuntu12.2~cloud0                           library for 
interfacing with different virtualization systems
ii  python-libvirt                   
0.9.13-0ubuntu12.2~cloud0                           libvirt Python bindings
ii  qemu-kvm                         
1.0+noroms-0ubuntu14.7                              Full virtualization 
on i386 and amd64 hardware

Any idea about this error?

Thanks for advance
Regards