[Pan-users] Re: [0.104] Early problem report

[walt]

walt wrote:
> Hi Charles,
[...]
> I'll keep testing for a reproducible trigger and get back to you.

Here's a backtrace:

pan: header-pane.cc:613: int
<unnamed>::column_compare_func(GtkTreeModel*, GtkTreeIter*,
GtkTreeIter*, void*): Assertion `0' failed.

Program received signal SIGABRT, Aborted.
[Switching to Thread -1223944528 (LWP 12711)]
0xb7fa0410 in __kernel_vsyscall ()
(gdb) bt
#0  0xb7fa0410 in __kernel_vsyscall ()
#1  0xb76793b1 in raise () from /lib/tls/libc.so.6
#2  0xb767adcd in abort () from /lib/tls/libc.so.6
#3  0xb7672c82 in __assert_fail () from /lib/tls/libc.so.6
#4  0x08085a57 in (anonymous namespace)::column_compare_func
(model=0x81995a0, iter_a=0xb6dedf58,
    iter_b=0x0, userdata=0x0) at header-pane.cc:613
#5  0x080965f8 in PanTreeStore::tuple_compare_func
(a_gpointer=0xb6dedf50, b_gpointer=0xb6dcf008,
    user_data=0xbffcd6e0) at pan-tree.cc:419
#6  0xb7d7f9dc in g_qsort_with_data () from /usr/lib/libglib-2.0.so.0
#7  0x08096d27 in PanTreeStore::sort_helper (this=0x8585350,
address@hidden,
    parent=0x85dc250, recurse=true) at pan-tree.cc:482
#8  0x0809769e in PanTreeStore::sort (this=0x8585350) at pan-tree.cc:533
#9  0x08097a08 in PanTreeStore::sortable_set_sort_column_id
(sortable=0x8585350, sort_column_id=0,
    order=GTK_SORT_DESCENDING) at pan-tree.cc:559
#10 0xb7c43004 in gtk_tree_sortable_set_sort_column_id () from
/usr/lib/libgtk-x11-2.0.so.0
#11 0x0808e066 in pan::HeaderPane::rebuild (this=0x842ee90) at
string-view.h:147
#12 0x0808e3e9 in pan::HeaderPane::set_group (this=0x842ee90,
address@hidden)
    at header-pane.cc:705
#13 0x0805af8a in pan::GUI::do_read_selected_group (this=0xbffcdf80) at
gui.cc:1124
#14 0xb7e644e6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#15 0xb7e4dc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#16 0xb7e62eb4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#17 0xb7e63e1b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#18 0xb7e640f6 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#19 0xb7a9bc65 in gtk_action_create_menu_item () from
/usr/lib/libgtk-x11-2.0.so.0
#20 0xb7a9c218 in gtk_action_activate () from /usr/lib/libgtk-x11-2.0.so.0
#21 0x08079e9d in (anonymous namespace)::on_row_activated_idle
(pane_g=0x0) at group-pane.cc:215
#22 0xb7d74ef1 in g_child_watch_add () from /usr/lib/libglib-2.0.so.0
#23 0xb7d71c7c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0xb7d735c7 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#25 0xb7d738ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#26 0xb7b770a3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#27 0x0806abbf in (anonymous namespace)::run_pan_in_window (address@hidden,
address@hidden,
    address@hidden, address@hidden, address@hidden, window=0x83fa848)
at pan.cc:106
#28 0x0806bdfc in main (argc=1, argv=0xbffce5e4) at pan.cc:250

After the first crash, then almost anything I attempt to do results
in the same crash -- e.g. clicking on any group in the groups pane.
I can do pretty well for a short time by deleting ~/.pan2 and starting
over from scratch.  But -- once pan crashes the first time I can do
almost nothing without causing more crashes like the above.  Perhaps
this implies corruption of ~/.pan2 ?  Dunno.