#0  0x00007fffea731475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fffea7346f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fffeaaf09dd in g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffeaaf0f02 in g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x000000000042f3a1 in create_video_output_widget (self=0xa6a720) at empathy-call-window.c:391
#5  0x000000000042f7f5 in empathy_call_window_restart_call (window=0xa6a720) at empathy-call-window.c:3999
#6  0x00007fffe2ca37bc in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.5
#7  0x00007fffe2ca3237 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.5
#8  0x00007fffeb39dcc7 in g_cclosure_marshal_generic () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9  0x00007fffeb39d804 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007fffeb3af78a in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#11 0x00007fffeb3b8e11 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007fffeb3b8fb2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x0000000000429f68 in handle_channels (client=<optimized out>, account=<optimized out>, connection=<optimized out>, 
    channels=<optimized out>, requests_satisfied=<optimized out>, user_action_time=<optimized out>, context=0x31f0440)
    at empathy-call-factory.c:225
#14 0x00007ffff10ff0d9 in ?? () from /usr/lib/libtelepathy-glib.so.0
#15 0x00007fffeb648d87 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007ffff11c11e9 in ?? () from /usr/lib/libtelepathy-glib.so.0
#17 0x00007fffeb648d87 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#18 0x00007fffeb648e99 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#19 0x00007fffeaacd0cf in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fffeaacd8c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fffeaacde02 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fffed8e0fdd in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#23 0x00007fffeb676bbe in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#24 0x000000000042951b in main (argc=1, argv=0x7fffffffe198) at empathy-call.c:258
