I have the same problem with VB 3.0.8 on Kubuntu Karmic AMD64, kernel 2.6.31-9-rt.
VirtualBox started freezing for a few seconds intermittently after upgrading to Karmic. The host remained responsive during these freezes. I am using the realtime kernel per some tips given in this forum thread: http://forums.virtualbox.org/viewtopic.php?f=7&t=23978
(And thanks for those tips, qhartman, VB isn't freezing anymore. ;) )
I have the same problem with VB 3.0.8 on Kubuntu Karmic AMD64, kernel 2.6.31-9-rt.
VirtualBox started freezing for a few seconds intermittently after upgrading to Karmic. The host remained responsive during these freezes. I am using the realtime kernel per some tips given in this forum thread: http:// forums. virtualbox. org/viewtopic. php?f=7& t=23978
(And thanks for those tips, qhartman, VB isn't freezing anymore. ;) )