Normal trace:

(gdb) r
Starting program: /usr/bin/totem 
[Thread debugging using libthread_db enabled]
[New Thread 0x7fffe8765700 (LWP 2920)]
[New Thread 0x7fffe7d5b700 (LWP 2921)]

** (totem:2917): WARNING **: Could not create element 'gconfaudiosink'

** (totem:2917): WARNING **: Could not create element 'gconfvideosink'
[New Thread 0x7fffe56d0700 (LWP 2922)]
[New Thread 0x7fffdc301700 (LWP 2923)]
[Thread 0x7fffdc301700 (LWP 2923) exited]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff69afb55 in g_type_name (type=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gobject/gtype.c:3287
3287	/build/buildd/glib2.0-2.29.14/./gobject/gtype.c: Нет такого файла или каталога.
	in /build/buildd/glib2.0-2.29.14/./gobject/gtype.c
(gdb) back
#0  0x00007ffff69afb55 in g_type_name (type=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gobject/gtype.c:3287
#1  0x00007ffff4c14d4f in g_typelib_get_dir_entry_by_gtype () from /usr/lib/libgirepository-1.0.so.1
#2  0x00007ffff4c1220f in ?? () from /usr/lib/libgirepository-1.0.so.1
#3  0x00007ffff64b653f in g_hash_table_foreach (hash_table=0x7ffff89b4460, func=0x7ffff4c121d0, 
    user_data=0x7fffffffcff0) at /build/buildd/glib2.0-2.29.14/./glib/ghash.c:1420
#4  0x00007ffff4c12a49 in g_irepository_find_by_gtype () from /usr/lib/libgirepository-1.0.so.1
#5  0x00007ffff4e40bfe in peas_gi_get_method_info () from /usr/lib/libpeas-1.0.so.0
#6  0x00007ffff4e3db07 in peas_extension_call_valist () from /usr/lib/libpeas-1.0.so.0
#7  0x00007ffff4e3dcdc in peas_extension_call () from /usr/lib/libpeas-1.0.so.0
#8  0x00007ffff698ce94 in g_closure_invoke (closure=0x7ffff820da20, return_value=0x0, 
    n_param_values=3, param_values=0x7ffff886b1e0, invocation_hint=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gobject/gclosure.c:773
#9  0x00007ffff69a013b in signal_emit_unlocked_R (node=<optimized out>, detail=0, 
    instance=0x7ffff89bccc0, emission_return=0x0, instance_and_params=0x7ffff886b1e0)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3271
#10 0x00007ffff69a9757 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>, var_args=0x7fffffffd538)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3002
#11 0x00007ffff69a9922 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>) at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3059
#12 0x00007ffff698ce94 in g_closure_invoke (closure=0x7ffff89ab9e0, return_value=0x0, 
    n_param_values=2, param_values=0x7ffff89ad350, invocation_hint=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gobject/gclosure.c:773
#13 0x00007ffff69a0307 in signal_emit_unlocked_R (node=<optimized out>, detail=0, 
    instance=0x7ffff8860670, emission_return=0x0, instance_and_params=0x7ffff89ad350)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3341
#14 0x00007ffff69a9757 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>, var_args=0x7fffffffd938)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3002
#15 0x00007ffff69a9922 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>) at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3059
#16 0x00007ffff4e3d6fa in peas_engine_set_loaded_plugins () from /usr/lib/libpeas-1.0.so.0
#17 0x00007ffff6995b02 in object_set_property (nqueue=0x7ffff89b6ee0, value=0x7fffffffdb80, 
    pspec=0x7ffff886acf0, object=0x7ffff8860670)
    at /build/buildd/glib2.0-2.29.14/./gobject/gobject.c:1199
#18 g_object_set_property (object=0x7ffff8860670, property_name=<optimized out>, value=0x7fffffffdb80)
    at /build/buildd/glib2.0-2.29.14/./gobject/gobject.c:1929
#19 0x00007ffff6fa7bbd in g_settings_binding_key_changed (settings=<optimized out>, 
    key=<optimized out>, user_data=0x7ffff88cb200)
    at /build/buildd/glib2.0-2.29.14/./gio/gsettings.c:2615
#20 0x00007ffff6faab67 in g_settings_bind_with_mapping (settings=0x7ffff886aca0, 
    key=0x7ffff7bbfe6f "active-plugins", object=0x7ffff8860670, 
    property=0x7ffff7bbfe60 "loaded-plugins", flags=<optimized out>, get_mapping=<optimized out>, 
    set_mapping=0, user_data=0x0, destroy=0) at /build/buildd/glib2.0-2.29.14/./gio/gsettings.c:2918
#21 0x00007ffff6faaf1c in g_settings_bind (settings=<optimized out>, key=<optimized out>, 
    object=<optimized out>, property=<optimized out>, flags=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gio/gsettings.c:2742
#22 0x00007ffff7b9de11 in totem_plugins_engine_get_default (totem=0x7ffff82b8000)
    at plugins/totem-plugins-engine.c:141
#23 0x00007ffff7b86385 in totem_object_plugins_init (totem=0x7ffff82b8000) at totem-object.c:376
---Type <return> to continue, or q <return> to quit---
#24 0x00007ffff7ffdb21 in app_init (argv=<optimized out>, totem=0x7ffff82b8000) at totem.c:156
#25 app_command_line (app=<optimized out>, command_line=<optimized out>, totem=0x7ffff82b8000)
    at totem.c:223
#26 0x00007ffff0dbca14 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#27 0x00007ffff0dbc435 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#28 0x00007ffff698d357 in g_cclosure_marshal_generic (closure=0x7ffff82b7f60, 
    return_gvalue=0x7fffffffe0b0, n_param_values=2, param_values=<optimized out>, 
    invocation_hint=<optimized out>, marshal_data=0x7ffff7ffd7a0)
    at /build/buildd/glib2.0-2.29.14/./gobject/gclosure.c:1146
#29 0x00007ffff698ce94 in g_closure_invoke (closure=0x7ffff82b7f60, return_value=0x7fffffffe0b0, 
    n_param_values=2, param_values=0x7ffff82cc470, invocation_hint=<optimized out>)
    at /build/buildd/glib2.0-2.29.14/./gobject/gclosure.c:773
#30 0x00007ffff69a013b in signal_emit_unlocked_R (node=<optimized out>, detail=0, 
    instance=0x7ffff82b9840, emission_return=0x7fffffffe1f0, instance_and_params=0x7ffff82cc470)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3271
#31 0x00007ffff69a95e6 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>, var_args=0x7fffffffe258)
    at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3012
#32 0x00007ffff69a9922 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, 
    detail=<optimized out>) at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3059
#33 0x00007ffff6fa0b0c in g_application_run (application=0x7ffff82b9840, argc=<optimized out>, 
    argv=0x7fffffffe498) at /build/buildd/glib2.0-2.29.14/./gio/gapplication.c:1303
#34 0x00007ffff7ffd632 in main (argc=1, argv=0x7fffffffe498) at totem.c:280
(gdb)