marek@acerntb ~ $ gdb /usr/lib/virtualbox/VirtualBox
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Reading symbols from /usr/lib/virtualbox/VirtualBox...done.
(gdb) run
Starting program: /usr/lib/virtualbox/VirtualBox 
[Thread debugging using libthread_db enabled]
VirtualBox: Error -10 in SUPR3HardenedMain!
VirtualBox: Effective UID is not root (euid=1000 egid=100 uid=1000 gid=100)

VirtualBox: Tip! It may help to reinstall VirtualBox.

Program exited with code 01.
(gdb) quit