(gdb) bt
#0  ewl_segv () at ewl_misc.c:79
#1  0x00002aaaaab0a1fa in ewl_container_child_get (parent=0x0, index=0)
    at ewl_container.c:506
#2  0x00002aaaaaba8a3b in ewl_tree2_widget_at (mvc=0x652e20, 
    data=<value optimized out>, row=<value optimized out>, column=0)
    at ewl_tree2.c:1006
#3  0x00002aaaaab5bb31 in ewl_mvc_highlight (mvc=0x652e20, c=0x653bb0, 
    widget=0x2aaaaaba8910 <ewl_tree2_widget_at>) at ewl_mvc.c:894
#4  0x00002aaaaaba87e2 in ewl_tree2_cb_selected_change (mvc=0x652e20)
    at ewl_tree2.c:984
#5  0x00002aaaaab5c64d in ewl_mvc_selected_change_notify (mvc=0x652e20)
    at ewl_mvc.c:972
#6  0x00002aaaaab5caf9 in ewl_mvc_selected_add (mvc=0x652e20, model=0x6bc4b0, 
    data=0x652ca0, row=10, column=0) at ewl_mvc.c:473
#7  0x00002aaaaab5d240 in ewl_mvc_selected_set (mvc=0x652e20, model=0x6bc4b0, 
    data=0x652ca0, row=10, column=dwarf2_read_address: Corrupted DWARF expression.
) at ewl_mvc.c:439
#8  0x00002aaaaab5d54c in ewl_mvc_handle_click (mvc=0x652e20, model=0x6bc4b0, 
    data=0x652ca0, row=10, column=0) at ewl_mvc.c:853
#9  0x00002aaaaaba841f in ewl_tree2_cb_cell_clicked (w=0x6f2490, 
    ev=<value optimized out>, data=0x6f1bb0) at ewl_tree2.c:970
#10 0x00002aaaaaaf690b in ewl_callback_call_with_event_data (w=0x6f2490, t=19, 
    ev_data=0x7fff7e64e6c0) at ewl_callback.c:508
#11 0x00002aaaaabb7c5e in ewl_widget_cb_mouse_up (w=0x6f2490, 
---Type <return> to continue, or q <return> to quit---
    ev_data=0x7fff7e64e6c0, user_data=<value optimized out>)
    at ewl_widget.c:3050
#12 0x00002aaaaaaf690b in ewl_callback_call_with_event_data (w=0x6f2490, t=14, 
    ev_data=0x7fff7e64e6c0) at ewl_callback.c:508
#13 0x00002aaaaab16007 in ewl_embed_mouse_up_feed (
    embed=<value optimized out>, b=1, x=71, y=296, mods=0) at ewl_embed.c:628
#14 0x00002aaab0ae7adc in ewl_ev_x_mouse_up (data=<value optimized out>, 
    type=<value optimized out>, e=0x6abc20) at ewl_engine_x11.c:1124
#15 0x00002aaaacb1ac47 in _ecore_event_call () at ecore_events.c:428
#16 0x00002aaaacb209ce in _ecore_main_loop_iterate_internal (once_only=0)
    at ecore_main.c:639
#17 0x00002aaaacb20b8e in ecore_main_loop_begin () at ecore_main.c:79
#18 0x00002aaaaab56188 in ewl_main () at ewl_misc.c:346
#19 0x0000000000402df3 in main (argc=1, argv=0x7fff7e650d28) at main.c:154