Comment 4 for bug 358853

I'm also affected with the current Karmic totem. My backtrace shows following:

Thread 1 (Thread 0x7ffff7fba7c0 (LWP 10460)):
#0 0x00007ffff1795c45 in raise () from /lib/libc.so.6
#1 0x00007ffff1799d51 in abort () from /lib/libc.so.6
#2 0x00007ffff5b0f86e in Py_FatalError () from /usr/lib/libpython2.6.so.1.0
#3 0x00007ffff5aeacdc in PyEval_SaveThread () from /usr/lib/libpython2.6.so.1.0
#4 0x00007fffe42d203d in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#5 0x00007ffff5a8e01b in ?? () from /usr/lib/libpython2.6.so.1.0
#6 0x00007fffe42d1fed in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#7 0x00007ffff5aab3c5 in ?? () from /usr/lib/libpython2.6.so.1.0
#8 0x0000000000452167 in ?? ()
#9 0x00007ffff28f973f in g_object_unref () from /usr/lib/libgobject-2.0.so.0
#10 0x000000000044f79f in ?? ()
#11 0x00007ffff244b4c2 in ?? () from /usr/lib/libglib-2.0.so.0
#12 0x00007ffff244bcf8 in g_hash_table_remove_all () from /usr/lib/libglib-2.0.so.0
#13 0x00007ffff244bea5 in g_hash_table_destroy () from /usr/lib/libglib-2.0.so.0
#14 0x000000000044f6d2 in totem_plugins_engine_shutdown ()
#15 0x00000000004270d1 in totem_action_exit ()
#16 0x00000000004279fc in main_window_destroy_cb ()
#17 0x00007ffff4673c03 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00007ffff28f767e in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#19 0x00007ffff290d856 in ?? () from /usr/lib/libgobject-2.0.so.0
#20 0x00007ffff290eb5e in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#21 0x00007ffff290f223 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0x00007ffff47947ff in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#23 0x00007ffff466bedb in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00007ffff42bfe7c in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#25 0x00007ffff2459a8e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x00007ffff245d458 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x00007ffff245d8b5 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#28 0x00007ffff466c117 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#29 0x000000000042185b in main ()

Which led me to the idea of plugin problem... so I disabled BBC content (the only one plugin enabled that time) and now totem exits without crash.