Bug#507785: xen-linux-system: Xen domU clock frozen on dom0 boot

Package: xen-linux-system-2.6.26-1-xen-686
Version: 2.6.26-10
Severity: important
File: xen-linux-system

When dom0 boots up, all restored domUs (2 x etch and 1 x lenny) have their clocks set to the time when they were
restored and their 
clocks are "frozen" in that time, with following error appearing in all domUs' dmesg:

clocksource/0: Time went backwards: ret=b01d2985eb delta=-929476120446 shadow=b00552031d offset=17d7f610

(ret, delta, shadow and offset vary over time)

"xm destroy domU && xm create domU.cfg" seems to fix the problem, but only until I reboot/shutdown dom0 again.

Manual "/etc/init.d/xendomains restart" doesn't fix the problem, but it doesn't reintroduce it either
once the domUs have been manually 
recreated with xm destroy/create.

This happens on every dom0 boot.

domU.cfg (Created with xen-tools, other domUs have pretty much similar config. "virtual" is the name of
LVM VG.):

kernel      = '/boot/vmlinuz-2.6.26-1-xen-686'
ramdisk     = '/boot/initrd.img-2.6.26-1-xen-686'
memory      = '256'
root        = '/dev/sda2 ro'
disk        = [ 'phy:virtual/vm2-swap,sda1,w', 'phy:virtual/vm2-root,sda2,w', ]
name        = 'domU'