[libvirt-users] changing clock on host temporarily blocks guest OS operation

I have the following running on my system: - one linux host running libvirt 1.2.20 - two Linux guestOS VMs running When I change the clock on the host, the VMs stop responding: The VNC connection stops working, the console connection to the VMs does not work, ping stops reponding, libvirt commands temporarily stop working (after issuing the command, the system just hangs). I get control back after 5 min or so, but I have to restart the VMs for everything to work again. Any ideas what's causing this? Is this a know bug? Is there a fix for it? Thanks in advance, Andrei -- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you receive this in error please contact the sender and delete the material from any computer immediately. It is the policy of Klas Limited to disavow the sending of offensive material and should you consider that the material contained in the message is offensive you should contact the sender immediately and also your I.T. Manager. Klas Telecom Inc., a Virginia Corporation with offices at 1101 30th St. NW, Washington, DC 20007. Klas Limited (Company Number 163303) trading as Klas Telecom, an Irish Limited Liability Company, with its registered office at Fourth Floor, One Kilmainham Square, Inchicore Road, Kilmainham, Dublin 8, Ireland.