(gdb) backtrace
#0  0x0012d422 in __kernel_vsyscall ()
#1  0x00fc7651 in raise () from /lib/tls/i686/cmov/libc.so.6
#2  0x00fcaa82 in abort () from /lib/tls/i686/cmov/libc.so.6
#3  0x00ffe49d in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0x01008591 in ?? () from /lib/tls/i686/cmov/libc.so.6
#5  0x01009de8 in ?? () from /lib/tls/i686/cmov/libc.so.6
#6  0x0100cecd in free () from /lib/tls/i686/cmov/libc.so.6
#7  0x00ef0fc6 in IA__g_free (mem=0x400)
    at /build/buildd/glib2.0-2.24.1/glib/gmem.c:191
#8  0x003af10c in gnc_ui_account_get_tax_info_string (account=0x84ee4f0)
    at gnc-ui-util.c:680
#9  0x00356a8a in gnc_tree_model_account_get_value (tree_model=0x84da740, 
    iter=0xbfffe400, column=22, value=0xbfffe57c)
    at gnc-tree-model-account.c:802
#10 0x009ad043 in IA__gtk_tree_model_get_value (tree_model=0x84da740, 
    iter=0xbfffe400, column=22, value=0xbfffe57c)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodel.c:1147
#11 0x009b23f1 in gtk_tree_model_filter_get_value (model=0x84545c0, 
    iter=0xbfffe480, column=22, value=0xbfffe57c)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodelfilter.c:2414
#12 0x009ad043 in IA__gtk_tree_model_get_value (tree_model=0x84545c0, 
    iter=0xbfffe480, column=22, value=0xbfffe57c)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodel.c:1147
---Type <return> to continue, or q <return> to quit---
#13 0x009b73b8 in gtk_tree_model_sort_get_value (tree_model=0x8081b80, 
    iter=0xbfffe818, column=22, value=0xbfffe57c)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodelsort.c:1013
#14 0x009ad043 in IA__gtk_tree_model_get_value (tree_model=0x8081b80, 
    iter=0xbfffe818, column=22, value=0xbfffe57c)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodel.c:1147
#15 0x009adb02 in IA__gtk_tree_model_get_valist (tree_model=0x8081b80, 
    iter=0xbfffe818, 
    var_args=0xbfffe5ec "\034\346\377\277\377\377\377\377\214\346\377\277\030\346\377\277\006\316", <incomplete sequence \350>)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodel.c:1444
#16 0x009add4f in IA__gtk_tree_model_get (tree_model=0x8081b80, 
    iter=0xbfffe818) at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreemodel.c:1408
#17 0x00361304 in tax_info_data_func (col=0x80debe0, renderer=0x84de3b8, 
    model=0x8081b80, iter=0xbfffe818, view=0x84dc0f0)
    at gnc-tree-view-account.c:490
#18 0x009de462 in IA__gtk_tree_view_column_cell_set_cell_data (
    tree_column=0x80debe0, tree_model=0x8081b80, iter=0xbfffe818, 
    is_expander=1, is_expanded=1)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreeviewcolumn.c:2592
#19 0x009d7d84 in gtk_tree_view_bin_expose (widget=0x84dc0f0, 
    event=<value optimized out>)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreeview.c:4460
---Type <return> to continue, or q <return> to quit---
#20 0x009d9f59 in gtk_tree_view_expose (widget=0x84dc0f0, event=0xbfffed88)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtktreeview.c:5036
#21 0x008c2424 in _gtk_marshal_BOOLEAN__BOXED (closure=0x8099a48, 
    return_value=0xbfffeae4, n_param_values=2, param_values=0x8572fb8, 
    invocation_hint=0xbfffead0, marshal_data=0x9d9eb0)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkmarshalers.c:84
#22 0x00e638b9 in g_type_class_meta_marshal (closure=0x8099a48, 
    return_value=0xbfffeae4, n_param_values=2, param_values=0x8572fb8, 
    invocation_hint=0xbfffead0, marshal_data=0xc8)
    at /build/buildd/glib2.0-2.24.1/gobject/gclosure.c:878
#23 0x00e65252 in IA__g_closure_invoke (closure=0x8099a48, 
    return_value=0xbfffeae4, n_param_values=2, param_values=0x8572fb8, 
    invocation_hint=0xbfffead0)
    at /build/buildd/glib2.0-2.24.1/gobject/gclosure.c:767
#24 0x00e795e6 in signal_emit_unlocked_R (node=<value optimized out>, 
    detail=<value optimized out>, instance=0x84dc0f0, 
    emission_return=0xbfffec2c, instance_and_params=0x8572fb8)
    at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:3286
#25 0x00e7ac33 in IA__g_signal_emit_valist (instance=0x84dc0f0, signal_id=47, 
    detail=0, var_args=0xbfffec90 "\274\354\377\277\250\213\t\b")
    at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:2991
#26 0x00e7b256 in IA__g_signal_emit (instance=0x84dc0f0, signal_id=47, 
    detail=0) at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:3038
---Type <return> to continue, or q <return> to quit---
#27 0x009ef636 in gtk_widget_event_internal (widget=<value optimized out>, 
    event=0xbfffed88) at /build/buildd/gtk+2.0-2.20.1/gtk/gtkwidget.c:4951
#28 0x008bc11b in IA__gtk_main_do_event (event=0xbfffed88)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkmain.c:1572
#29 0x00b9584b in _gdk_window_process_updates_recurse (window=0x858fb48, 
    expose_region=0x8581080)
    at /build/buildd/gtk+2.0-2.20.1/gdk/gdkwindow.c:5181
#30 0x00b957fa in _gdk_window_process_updates_recurse (window=0x858faa0, 
    expose_region=0x84be4c0)
    at /build/buildd/gtk+2.0-2.20.1/gdk/gdkwindow.c:5154
#31 0x00b957fa in _gdk_window_process_updates_recurse (window=0x84be9f8, 
    expose_region=0x84a6c80)
    at /build/buildd/gtk+2.0-2.20.1/gdk/gdkwindow.c:5154
#32 0x00bbead4 in _gdk_windowing_window_process_updates_recurse (
    window=0x84be9f8, region=0x84a6c80)
    at /build/buildd/gtk+2.0-2.20.1/gdk/x11/gdkwindow-x11.c:5566
#33 0x00b91fa3 in gdk_window_process_updates_internal (window=0x84be9f8)
    at /build/buildd/gtk+2.0-2.20.1/gdk/gdkwindow.c:5340
#34 0x00b96cf0 in IA__gdk_window_process_updates (window=0x84be9f8, 
    update_children=1) at /build/buildd/gtk+2.0-2.20.1/gdk/gdkwindow.c:5514
#35 0x00a0777b in gtk_window_move_resize (container=0x8115800)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkwindow.c:6241
#36 gtk_window_check_resize (container=0x8115800)
---Type <return> to continue, or q <return> to quit---
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkwindow.c:5403
#37 0x00e72dcc in IA__g_cclosure_marshal_VOID__VOID (closure=0x809c1d0, 
    return_value=0x0, n_param_values=1, param_values=0x857a280, 
    invocation_hint=0xbffff2e0, marshal_data=0xa07310)
    at /build/buildd/glib2.0-2.24.1/gobject/gmarshal.c:77
#38 0x00e638b9 in g_type_class_meta_marshal (closure=0x809c1d0, 
    return_value=0x0, n_param_values=1, param_values=0x857a280, 
    invocation_hint=0xbffff2e0, marshal_data=0x174)
    at /build/buildd/glib2.0-2.24.1/gobject/gclosure.c:878
#39 0x00e65252 in IA__g_closure_invoke (closure=0x809c1d0, return_value=0x0, 
    n_param_values=1, param_values=0x857a280, invocation_hint=0xbffff2e0)
    at /build/buildd/glib2.0-2.24.1/gobject/gclosure.c:767
#40 0x00e795e6 in signal_emit_unlocked_R (node=<value optimized out>, 
    detail=<value optimized out>, instance=0x8115800, emission_return=0x0, 
    instance_and_params=0x857a280)
    at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:3286
#41 0x00e7adb4 in IA__g_signal_emit_valist (instance=0x8115800, signal_id=88, 
    detail=0, var_args=0xbffff49c "\364_", <incomplete sequence \367>)
    at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:2981
#42 0x00e7b256 in IA__g_signal_emit (instance=0x8115800, signal_id=88, 
    detail=0) at /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:3038
#43 0x0083170a in IA__gtk_container_check_resize (container=0x8115800)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkcontainer.c:1445
---Type <return> to continue, or q <return> to quit---
#44 0x00831760 in gtk_container_idle_sizer (data=0x0)
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkcontainer.c:1370
#45 0x00b70358 in gdk_threads_dispatch (data=0x84314a0)
    at /build/buildd/gtk+2.0-2.20.1/gdk/gdk.c:512
#46 0x00ee6661 in g_idle_dispatch (source=0x838fbc0, callback=0, 
    user_data=0x84314a0) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:4065
#47 0x00ee85e5 in g_main_dispatch (context=0x8083e18)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:1960
#48 IA__g_main_context_dispatch (context=0x8083e18)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2513
#49 0x00eec2d8 in g_main_context_iterate (context=0x8083e18, 
    block=<value optimized out>, dispatch=1, self=0x804f028)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2591
#50 0x00eec817 in IA__g_main_loop_run (loop=0x8217450)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2799
#51 0x008bc3c9 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.20.1/gtk/gtkmain.c:1219
#52 0x00339104 in gnc_ui_start_event_loop () at gnc-gnome-utils.c:668
#53 0x0804b414 in inner_main (closure=0x0, argc=1, argv=0xbffff9b4)
    at gnucash-bin.c:735
#54 0x00409e0b in scm_boot_guile () from /usr/lib/libguile.so.12
#55 0x0804aebd in main (argc=1, argv=0xbffff9b4) at gnucash-bin.c:879
(gdb) 

