#0  IA__g_slice_alloc (mem_size=32) at /build/buildd/glib2.0-2.14.1/glib/gslice.c:474
  [Error: /build/buildd/glib2.0-2.14.1/glib/gslice.c was not found in source tree]
#1  0x4e9916c6 in pango_font_description_copy_static (desc=0x83ef700)
#2  0x4e9967ad in update_attr_iterator (state=0xbff81720)
#3  0x4e9969ad in itemize_state_init (state=0xbff81720, context=<value optimized out>, 
#4  0x4e99783b in pango_itemize_with_base_dir (context=0x86bb950, base_dir=PANGO_DIRECTION_LTR, 
#5  0x4e9a070e in pango_layout_check_lines (layout=0x8874c70)
#6  0x4e9a18c7 in pango_layout_get_extents_internal (layout=0x8874c70, ink_rect=0x0, logical_rect=0xbff81a6c, 
#7  0x41be5431 in get_size (cell=0x856e6a8, widget=0x854b840, cell_area=0x0, layout=0x8874c70, x_offset=0x0, 
#8  0x41388b8b in Gtk::CellRenderer_Class::get_size_vfunc_callback (self=0x856e6a8, widget=0x854b840, 
#9  0x41bddd9a in IA__gtk_cell_renderer_get_size (cell=0x856e6a8, widget=0x854b840, cell_area=0x0, 
#10 0x41dbbca7 in IA__gtk_tree_view_column_cell_get_size (tree_column=0x854c950, cell_area=0x0, x_offset=0x0, 
#11 0x41db3b00 in validate_row (tree_view=0x854b840, tree=0x825c218, node=0x871c020, iter=0xbff81c84, 
#12 0x41db5641 in validate_visible_area (tree_view=0x854b840)
#13 0x41db5ba1 in do_presize_handler (tree_view=0x8135430)
#14 0x41db69ae in presize_handler_callback (data=0x854b840)
#15 0x421b65e8 in gdk_threads_dispatch (data=0x8319e00) at /build/buildd/gtk+2.0-2.12.0/gdk/gdk.c:470
  [Error: /build/buildd/gtk+2.0-2.12.0/gdk/gdk.c was not found in source tree]
#16 0x4e71e551 in g_idle_dispatch (source=0x8268988, callback=0x8135450, user_data=0x8319e00)
#17 0x4e72011c in IA__g_main_context_dispatch (context=0x816fe60)
#18 0x4e72355f in g_main_context_iterate (context=0x816fe60, block=1, dispatch=1, self=0x818c6b8)
#19 0x4e723909 in IA__g_main_loop_run (loop=0x8139f08) at /build/buildd/glib2.0-2.14.1/glib/gmain.c:2898
  [Error: /build/buildd/glib2.0-2.14.1/glib/gmain.c was not found in source tree]
#20 0x41ca79e4 in IA__gtk_main () at /build/buildd/gtk+2.0-2.12.0/gtk/gtkmain.c:1144
  [Error: /build/buildd/gtk+2.0-2.12.0/gtk/gtkmain.c was not found in source tree]
#21 0x413c7827 in Gtk::Main::run_impl (this=0xbff82198) at main.cc:534
#22 0x413c866a in Gtk::Main::run (window=@0x86755a8) at main.cc:488
#23 0x08076143 in main (argc=134796312, argv=0x919) at src/main.cc:256
  [Error: src/main.cc was not found in source tree]
#24 0x4e44e050 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#25 0x0805b891 in _start ()