I just performed the kernel upgrade as part of the regular system upgrade. As usually on previous kernel upgrades, I had to install the kernel headers and recompile VirtualBox drivers. This process worked normally and VirtualBox is able to launch, but it stalls trying to run the virtual machine. When I backup to 3.5.0-37 (using GRUB menu, and recompile VirtualBox drivers) it returns to working state.
The version string from
uname -a after upgrading is
3.5.0-39-generic #60-Ubuntu SMP Tue Aug 13 18:33:05 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux and my system is a Lenovo laptop W520 that has been running Ubuntu/VirtualBox for a couple of years already.
Is there anyone experiencing this issue and found a solution?