#0  0x00007f1a12e2ecfe in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so
No symbol table info available.
#1  0x00007f19fe1a1281 in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so
No symbol table info available.
#2  0x00007f1a12e7601a in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so
No symbol table info available.
#3  0x00007f1a12e75487 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so
No symbol table info available.
#4  0x00007f19c8000e00 in ?? ()
No symbol table info available.
#5  0x00007f19fca31abc in ?? ()
No symbol table info available.
#6  0x0000000000000001 in ?? ()
No symbol table info available.
#7  0x00007f19c8000cd0 in ?? ()
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.