(gdb) where
#0 0x00002af893ba2994 in strcmp () from /lib64/libc.so.6
#1 0x000000000046c39f in (anonymous namespace)::column_compare_func (model=0xfffff040,
iter_a=0x7fff19e52f20, iter_b=<value optimized out>, userdata=<value optimized
out>) at header-pane.cc:454
#2 0x00002af891e03711 in gtk_tree_sortable_sort_column_changed () from
/opt/gnome/lib64/libgtk-x11-2.0.so.0
#3 0x00002af891abc3de in g_qsort_with_data () from
/opt/gnome/lib64/libglib-2.0.so.0
#4 0x00002af891e069fa in gtk_tree_store_set_value () from
/opt/gnome/lib64/libgtk-x11-2.0.so.0
#5 0x00002af891e1df80 in gtk_tree_view_column_queue_resize () from
/opt/gnome/lib64/libgtk-x11-2.0.so.0
#6 0x00002af8913bc38d in g_closure_invoke () from
/opt/gnome/lib64/libgobject-2.0.so.0