#0  0x00007f821c850da7 in ?? () from /usr/lib/vlc/plugins/visualization/libvisual_plugin.so
No symbol table info available.
#1  0x00007f825e1b7af2 in vlc_module_unload () from /usr/lib/libvlccore.so.5
No symbol table info available.
#2  0x00007f825e1a488f in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#3  0x00007f825e1a5a0a in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#4  0x00007f825e1a40ee in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#5  0x00007f825e172056 in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#6  0x00007f825e176f41 in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#7  0x00007f825e179454 in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#8  0x00007f825e17c0b6 in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#9  0x00007f825e17da7c in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#10 0x00007f825e17f36e in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#11 0x00007f825e180e8c in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#12 0x00007f825e181485 in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#13 0x00007f825e18727d in ?? () from /usr/lib/libvlccore.so.5
No symbol table info available.
#14 0x00007f825df1ce9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#15 0x00007f825da4674d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.