(gdb) bt
#0  0x00002aaaad779665 in __xstat64 () from /lib/libc.so.6
#1  0x00002aaaabf1ace5 in gtk_file_system_unix_new () from /usr/lib/libgtk-x11-2.0.so.0
#2  0x00002aaaabdcb68e in gtk_file_chooser_dialog_new_with_backend () from /usr/lib/libgtk-x11-2.0.so.0
#3  0x00002aaaabdcb8ad in gtk_file_chooser_dialog_new_with_backend () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x00002aaaabdcc5c3 in gtk_file_chooser_dialog_new_with_backend () from /usr/lib/libgtk-x11-2.0.so.0
#5  0x00002aaaabdcdf7c in gtk_file_chooser_dialog_new_with_backend () from /usr/lib/libgtk-x11-2.0.so.0
#6  0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#7  0x00002aaaac9fb6e4 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#8  0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#9  0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#10 0x00002aaaabf0b57b in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0
#11 0x00002aaaabd64250 in gtk_box_reorder_child () from /usr/lib/libgtk-x11-2.0.so.0
#12 0x00002aaaabd9dfe9 in gtk_container_get_focus_hadjustment () from /usr/lib/libgtk-x11-2.0.so.0
#13 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#14 0x00002aaaac9fb6e4 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#15 0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#16 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#17 0x00002aaaabf0b57b in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00002aaaabdc9045 in gtk_file_chooser_dialog_get_type () from /usr/lib/libgtk-x11-2.0.so.0
#19 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#20 0x00002aaaac9fb6e4 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#21 0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#22 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#23 0x00002aaaabf0b57b in gtk_widget_map () from /usr/lib/libgtk-x11-2.0.so.0
#24 0x00002aaaabf1605b in gtk_window_get_position () from /usr/lib/libgtk-x11-2.0.so.0
#25 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#26 0x00002aaaac9fb6e4 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#27 0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#28 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#29 0x00002aaaabf0bd1d in gtk_widget_show () from /usr/lib/libgtk-x11-2.0.so.0
#30 0x00002aaaabdad7b5 in gtk_dialog_run () from /usr/lib/libgtk-x11-2.0.so.0
#31 0x000000000052d080 in description_window_create ()
#32 0x0000000000469700 in compose_reply ()
#33 0x000000000051ef9a in toolbar_toggle ()
#34 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#35 0x00002aaaac9fb934 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#36 0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#37 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#38 0x00002aaaabd66da8 in gtk_button_get_alignment () from /usr/lib/libgtk-x11-2.0.so.0
#39 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#40 0x00002aaaac9fb6e4 in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#41 0x00002aaaac9fcbf3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#42 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#43 0x00002aaaabd662d9 in gtk_button_set_relief () from /usr/lib/libgtk-x11-2.0.so.0
#44 0x00002aaaabe22738 in gtk_marshal_VOID__UINT_STRING () from /usr/lib/libgtk-x11-2.0.so.0
#45 0x00002aaaac9e7e89 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#46 0x00002aaaac9fc01c in g_signal_has_handler_pending () from /usr/lib/libgobject-2.0.so.0
#47 0x00002aaaac9fc94a in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#48 0x00002aaaac9fcf63 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#49 0x00002aaaabf05c20 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#50 0x00002aaaabe20af1 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#51 0x00002aaaabe20e3c in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#52 0x00002aaaac168750 in gdk_event_get_graphics_expose () from /usr/lib/libgdk-x11-2.0.so.0
#53 0x00002aaaacc46d06 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#54 0x00002aaaacc48728 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#55 0x00002aaaacc48a8a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#56 0x00002aaaabe20311 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#57 0x000000000049c5e2 in main ()