Starting last night, with no apparent changes to my system, VirtualBox now freezes my host OS when starting any virtual machine.
The host OS is Ubuntu 16.04 LTS 64-bit as is the guest OS and the version of VirtualBox is 5.0.40_Ubuntu r115130. It was working properly last night, but as of this morning, starting the VM freezes. I pulled it from the
apt repository just this morning. It is very unlikely to be a software issue, as I reinstalled the host OS this morning.
I tried a number of things:
- I tried creating a new VM, but it freezes immediately as soon as you select the ISO to mount.
- I tried a reinstall of the host OS this morning, thinking maybe I was having issues with running out of space on the hard drive. But still, it freezes the host as soon as you load a VM. Any VM seems to cause it.
- I have also tried installing VirtualBox on another laptop, and it has the same behavior: Freezing the host OS instantly as soon as any VM is started.
And because it’s happening also on another laptop from another vendor, I doubt it's a hardware-related issue. And because happens on even a blank VM install, it isn't anything to do with a corrupted image.
I’m stumped and I don't have any idea how to debug this. And the fact that it freezes my system also makes it very difficult to iterate through possible solutions.