(gdb) run
Starting program: /usr/bin/gnome-shell
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff1bc0b48 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.9
(gdb) backtrace
#0  0x00007ffff1bc0b48 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.9
#1  0x00007ffff24cf2b4 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#2  0x00007ffff24e62b3 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#3  0x00007ffff24f1c8a in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#4  0x00007ffff24f21a0 in clutter_init () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#5  0x00007ffff741ac17 in meta_init () from /usr/lib/libmutter.so.0
#6  0x0000000000401b97 in main ()
(gdb)