.
Thread 1 (process 6117):
#0  0x00002afad021b2ff in ?? ()
   from /usr/lib/notification-daemon-1.0/engines/libubuntu.so
#1  0x00002afaca01d831 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#2  0x00002afacaca29ea in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#3  0x00002afacacb3907 in ?? () from /usr/lib/libgobject-2.0.so.0
#4  0x00002afacacb4b58 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#5  0x00002afacacb4f73 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#6  0x00002afaca13f92e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x00002afaca016790 in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#8  0x00002afaca4fd6da in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#9  0x00002afaca4fd91b in gdk_window_process_all_updates ()
   from /usr/lib/libgdk-x11-2.0.so.0
#10 0x00002afaca4fd979 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#11 0x00002afaca4e4d0e in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#12 0x00002afacb1110d3 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#13 0x00002afacb1143dd in ?? () from /usr/lib/libglib-2.0.so.0
#14 0x00002afacb1146ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#15 0x00002afaca016983 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#16 0x0000000000404a3a in ?? ()
#17 0x00002afacb5e2b04 in __libc_start_main () from /lib/libc.so.6
#18 0x0000000000403209 in ?? ()
#19 0x00007fffe16eb1c8 in ?? ()
#20 0x0000000000000000 in ?? ()