#0  0x00007f1eeafe66b9 in free () from /lib/libc.so.6
No symbol table info available.
#1  0x00000000004037b6 in ?? ()
No symbol table info available.
#2  0x00007f1eebbbd5ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#3  0x00007f1eebbd2983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007f1eebbd3d39 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007f1eebbd4283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007f1eed8b9510 in ?? () from /usr/lib/libxfce4panel.so.1
No symbol table info available.
#7  0x00007f1eed18d728 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#8  0x00007f1eebbbd5ae in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f1eebbd2983 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f1eebbd3bcc in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#11 0x00007f1eebbd4283 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f1eed29472f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#13 0x00007f1eed186e7a in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#14 0x00007f1eecbeacdc in ?? () from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#15 0x00007f1eeb51cbbe in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#16 0x00007f1eeb520588 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#17 0x00007f1eeb5209e5 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#18 0x00007f1eed187177 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#19 0x000000000040274b in main ()
No symbol table info available.