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Comment # 6 on bug 8011 from Cristian Constantin

open and then close of certain captures with sctp traffic causes (on close) a
core dump with the following trace:


(gdb) bt
#0  frame_data_cleanup (fdata=0x0) at frame_data.c:318
#1  0x00000000004393d2 in free_frame_data_sequence (fds=0x2c398f0) at
frame_data_sequence.c:271
#2  0x000000000044be07 in cf_reset_state (cf=0x8203c0) at file.c:413
#3  cf_close (cf=0x8203c0) at file.c:459
#4  cf_close (cf=0x8203c0) at file.c:452
#5  0x00000000004fc434 in do_file_close (cf=0x8203c0, from_quit=<optimized
out>, before_what=<optimized out>) at capture_file_dlg.c:1201
#6  0x00007f9234132724 in g_closure_invoke (closure=0x2d0f1e0,
return_value=0x0, n_param_values=1, param_values=0x7fff8c2b39b0,
invocation_hint=0x7fff8c2b3950) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gclosure.c:777
#7  0x00007f92341437b0 in signal_emit_unlocked_R (node=<optimized out>,
detail=0, instance=0x2d0e3f0, emission_return=0x0,
instance_and_params=0x7fff8c2b39b0) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3547
#8  0x00007f923414b72c in g_signal_emit_valist (instance=0x2d0e3f0,
signal_id=<optimized out>, detail=0, var_args=0x7fff8c2b3bf8) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3296
#9  0x00007f923414b8c2 in g_signal_emit (instance=<optimized out>,
signal_id=<optimized out>, detail=<optimized out>) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3352
#10 0x00007f9234fdc623 in _gtk_action_emit_activate (action="" at
/tmp/buildd/gtk+2.0-2.24.10/gtk/gtkaction.c:794
#11 0x00007f9234132a03 in _g_closure_invoke_va (closure=0x1bdb620,
return_value=0x0, instance=0x2d099b0, args=0x7fff8c2b3fb8, n_params=0,
param_types=0x0) at /tmp/buildd/glib2.0-2.32.3/./gobject/gclosure.c:840
#12 0x00007f923414b076 in g_signal_emit_valist (instance=0x2d099b0,
signal_id=<optimized out>, detail=0, var_args=0x7fff8c2b3fb8) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3207
#13 0x00007f923414b8c2 in g_signal_emit (instance=<optimized out>,
signal_id=<optimized out>, detail=<optimized out>) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3352
#14 0x00007f92351b664e in IA__gtk_widget_activate (widget=0x2d099b0) at
/tmp/buildd/gtk+2.0-2.24.10/gtk/gtkwidget.c:5015
#15 0x00007f92350b19bd in IA__gtk_menu_shell_activate_item
(menu_shell=0x2cef880, menu_item=0x2d099b0, force_deactivate=<optimized out>)
at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmenushell.c:1256
#16 0x00007f92350b1d57 in gtk_menu_shell_button_release (widget=0x2cef880,
event=<optimized out>) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmenushell.c:683
#17 0x00007f923509e538 in _gtk_marshal_BOOLEAN__BOXED (closure=0x1af4ec0,
return_value=0x7fff8c2b42a0, n_param_values=<optimized out>,
param_values=0x7fff8c2b4350, invocation_hint=<optimized out>,
marshal_data=<optimized out>)
    at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmarshalers.c:86
#18 0x00007f9234132724 in g_closure_invoke (closure=0x1af4ec0,
return_value=0x7fff8c2b42a0, n_param_values=2, param_values=0x7fff8c2b4350,
invocation_hint=0x7fff8c2b42f0) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gclosure.c:777
#19 0x00007f9234143530 in signal_emit_unlocked_R (node=<optimized out>,
detail=0, instance=0x2cef880, emission_return=0x7fff8c2b4420,
instance_and_params=0x7fff8c2b4350) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3585
#20 0x00007f923414b34b in g_signal_emit_valist (instance=0x2cef880,
signal_id=<optimized out>, detail=0, var_args=0x7fff8c2b45a8) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3306
#21 0x00007f923414b8c2 in g_signal_emit (instance=<optimized out>,
signal_id=<optimized out>, detail=<optimized out>) at
/tmp/buildd/glib2.0-2.32.3/./gobject/gsignal.c:3352
#22 0x00007f92351b7451 in gtk_widget_event_internal (widget=0x2cef880,
event=0x2f5d040) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkwidget.c:4984
#23 0x00007f923509c6c3 in IA__gtk_propagate_event (widget=0x2cef880,
event=0x2f5d040) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmain.c:2489
#24 0x00007f923509ca23 in IA__gtk_main_do_event (event=0x2f5d040) at
/tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmain.c:1684
#25 0x00007f9234d081ec in gdk_event_dispatch (source=<optimized out>,
callback=<optimized out>, user_data=<optimized out>) at
/tmp/buildd/gtk+2.0-2.24.10/gdk/x11/gdkevents-x11.c:2377
#26 0x00007f9233c70205 in g_main_dispatch (context=0x1aee7d0) at
/tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
#27 g_main_context_dispatch (context=0x1aee7d0) at
/tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
#28 0x00007f9233c70538 in g_main_context_iterate (context=0x1aee7d0,
block=<optimized out>, dispatch=1, self=Unhandled dwarf _expression_ opcode 0xfa
) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
#29 0x00007f9233c70932 in g_main_loop_run (loop=0x2f61c00) at
/tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3340
#30 0x00007f923509ba77 in IA__gtk_main () at
/tmp/buildd/gtk+2.0-2.24.10/gtk/gtkmain.c:1256
#31 0x0000000000437b66 in main (argc=0, argv=0x7fff8c2b4b00) at main.c:3205
(gdb) f 0
#0  frame_data_cleanup (fdata=0x0) at frame_data.c:318
318      if (fdata->pfd) {
(gdb) p fdata
$3 = (frame_data *) 0x0
(gdb) f 1
#1  0x00000000004393d2 in free_frame_data_sequence (fds=0x2c398f0) at
frame_data_sequence.c:271
271            frame_data_cleanup(level1[j]);
(gdb) p level1
$4 = <optimized out>
(gdb) p level1[j]
value has been optimized out

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