#0  0x00007f66191a3445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f66191a6bab in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007f6619591f9d in g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f66195924c2 in g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f6619a89a11 in ?? () from /usr/lib/x86_64-linux-gnu/libgee.so.2
No symbol table info available.
#5  0x000000000040d57b in ?? ()
No symbol table info available.
#6  0x000000000040d8d1 in ?? ()
No symbol table info available.
#7  0x00007f661be525af in ?? () from /usr/lib/libmutter.so.0
No symbol table info available.
#8  0x00007f661be52a13 in meta_plugin_manager_event_simple () from /usr/lib/libmutter.so.0
No symbol table info available.
#9  0x00007f661be5706f in ?? () from /usr/lib/libmutter.so.0
No symbol table info available.
#10 0x00007f661be57f13 in meta_window_actor_show () from /usr/lib/libmutter.so.0
No symbol table info available.
#11 0x00007f661be89e6f in ?? () from /usr/lib/libmutter.so.0
No symbol table info available.
#12 0x00007f661be8ac9e in ?? () from /usr/lib/libmutter.so.0
No symbol table info available.
#13 0x00007f661be7f318 in ?? () from /usr/lib/libmutter.so.0
No symbol table info available.
#14 0x00007f661b72078c in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#15 0x00007f661b722682 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#16 0x00007f6619571d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#17 0x00007f66195720a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#18 0x00007f661957249a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#19 0x00007f661be704b1 in meta_run () from /usr/lib/libmutter.so.0
No symbol table info available.
#20 0x0000000000410ab1 in gala_main ()
No symbol table info available.
#21 0x0000000000410aec in main ()
No symbol table info available.