id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
9097,Ubuntu hangs in VB 4.0.8 when CPU > 1,Radek Antoniuk,,"The problem is very widely described [http://forums.virtualbox.org/viewtopic.php?f=6&t=36426 here].

VM guest of Ubuntu (fully upgraded), running GNome, is randomly hanging.
At the very beginning, it looks like a ""silly window syndrome"". I am able to switch between windows, but I when I try to close any applications, I think they are closed, but the screen GUI stays there.
Reboot is impossible (I mean via Ubuntu options, ctrl+r works fine).

The problem appears when I set CPU cores to >1.
My host machine is running Win7 64-bit, Intel Core I5, M480, 2.67GHz, 6.00 GB RAM.
The guest system is 32-bit ubuntu, 2GB RAM, guest tools installed.

",defect,closed,other,VirtualBox 4.0.8,fixed,,,Linux,Windows