* virtualbox crashes if host is suspended
Posted on October 28th, 2008 by Alex. Filed under Linux.
Whenever the host is hibernated or suspended, the guest system crashes. Unfortunatley it crashes in a way, that even after killing all processes, the guest machine does not come up anymore. In addtion the kernel module vboxdrv cannot be reloaded, since rmmod reports that it is still in use.
According to this bug report the problem is known and will be fixed in a future release. The hibernation or suspending transition is not reported to the guest operating system so that the direct access to the CPU provided by the VT-x/AMD-V extension is literally pulled away from the guest system. Once lost, it cannot be reinstatiated. Until a fix for this problem is released, there is (as I know) now work around by either deactivating this extension in the setting dialog or to shut down the guest system each time the host is suspended.