In my case, I've installed virtualbox-dkms 32bits, in host "Ubuntu 16 64bits", instead than in the virtualbox hosted "Ubuntu 16 32bits"
When I've removed those 32bits libs the problem disappeared.
In my case, I've installed virtualbox-dkms 32bits, in host "Ubuntu 16 64bits", instead than in the virtualbox hosted "Ubuntu 16 32bits"
When I've removed those 32bits libs the problem disappeared.