When installing Ubuntu GNOME 13.04 from an ISO in Parallels, I get the following error:
BUG: soft lockup - CPU#0 stuck for 22s!
This is shortly followed by another message:
INFO: rcu_sched self detected stall on CPU

Is this error the result of a problem with the Ubuntu disc image or something else? How can it be fixed?
Note I have checked the integrity of the disc image and checked the disks for defects. No problems were detected.
