the last thing in /var/log/xend.log
DEBUG(DevControl:143) Waiting for devices vbd
DEBUG(DevControl:149) Waiting for 768
DEBUG(DevController:454)hotplugStatusCallback /local/domain/0/backend/vbd/43//768/hotplug-status
DEBUG(DevController:468)hotplugStatusCallback
DEBUG(DevController:143)Waiting for device irq
DEBUG(DevController:143)Waiting for device pci
DEBUG(DevController:143)Waiting for device tap
DEBUG(DevController:143)Waiting for device vtpm.
INFO(XenDomain:370) Domain xpb(43) unpaused.
Any help would be appreciated.