I was getting this error with only one Virtual CPU selected. I think the CPU# in the crash report refers to the core number in the host.
I have moved back to Ubuntu 9.04 with VirtualBox 3.0.10 and everything is working well.
By the way, the importance of this is listed as "low". I suggest it is higher importance as it appears to be affecting a lot of people and it prevents using VirtualBox on Ubuntu 9.10 in any productive environment.
I was getting this error with only one Virtual CPU selected. I think the CPU# in the crash report refers to the core number in the host.
I have moved back to Ubuntu 9.04 with VirtualBox 3.0.10 and everything is working well.
By the way, the importance of this is listed as "low". I suggest it is higher importance as it appears to be affecting a lot of people and it prevents using VirtualBox on Ubuntu 9.10 in any productive environment.