.
Thread 1 (process 11479):
#0  0x0000003dbb47863e in ?? () from /lib/libc.so.6
#1  0x0000003dbb479e98 in ?? () from /lib/libc.so.6
#2  0x0000003dbb47a276 in free () from /lib/libc.so.6
#3  0x0000003ae33261ed in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x000000339880f268 in g_object_unref () from /usr/lib/libgobject-2.0.so.0
#5  0x0000003ae3288a4b in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#6  0x0000003ae32b8059 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#7  0x000000339880d1cf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#8  0x000000339882319e in ?? () from /usr/lib/libgobject-2.0.so.0
#9  0x0000003398824422 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#10 0x0000003398824943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#11 0x0000003ae335e600 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#12 0x000000339880f690 in g_object_run_dispose ()
   from /usr/lib/libgobject-2.0.so.0
#13 0x0000003ae32b8059 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x000000339880d1cf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#15 0x000000339882319e in ?? () from /usr/lib/libgobject-2.0.so.0
#16 0x0000003398824422 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#17 0x0000003398824943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#18 0x0000003ae335e600 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#19 0x000000339880f690 in g_object_run_dispose ()
   from /usr/lib/libgobject-2.0.so.0
#20 0x0000003ae32b8059 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#21 0x000000339880d27d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#22 0x000000339882319e in ?? () from /usr/lib/libgobject-2.0.so.0
#23 0x0000003398824422 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#24 0x0000003398824943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#25 0x0000003ae335e600 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#26 0x000000339880f690 in g_object_run_dispose ()
   from /usr/lib/libgobject-2.0.so.0
#27 0x0000003ae500a72d in ?? () from /usr/lib/libxfce4panel.so.1
#28 0x0000003ae333bc28 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#29 0x000000339880d27d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#30 0x0000003398822dc8 in ?? () from /usr/lib/libgobject-2.0.so.0
#31 0x00000033988242ad in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#32 0x0000003398824943 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#33 0x0000003ae3443e8e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#34 0x0000003ae3335641 in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#35 0x0000003ae4450d1c in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#36 0x000000339843a0ca in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#37 0x000000339843d7a0 in ?? () from /usr/lib/libglib-2.0.so.0
#38 0x000000339843dc6d in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#39 0x0000003ae33359f7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#40 0x000000000040380b in ?? ()
#41 0x0000003dbb41e5a6 in __libc_start_main () from /lib/libc.so.6
#42 0x00000000004036c9 in ?? ()
#43 0x00007fff68044858 in ?? ()
#44 0x000000000000001c in ?? ()
#45 0x0000000000000007 in ?? ()
#46 0x00007fff68046a93 in ?? ()
#47 0x00007fff68046ada in ?? ()
#48 0x00007fff68046aed in ?? ()
#49 0x00007fff68046b07 in ?? ()
#50 0x00007fff68046b17 in ?? ()
#51 0x00007fff68046b3f in ?? ()
#52 0x00007fff68046b47 in ?? ()
#53 0x0000000000000000 in ?? ()