Thanks for your bug. Seems to be a xine-lib issue, reassigning:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1224108352 (LWP 17857)]
0xb5e8ae30 in ?? ()
(gdb) bt
#0  0xb5e8ae30 in ?? ()
#1  0xb7d9d59f in config_update_num (this=0x838b170, key=0x8392558 "media.network.bandwidth", value=8) at configfile.c:808
#2  0xb7dbbb1a in xine_config_update_entry (this=0x838b108, entry=0xbffed89c) at xine_interface.c:276
#3  0x08077924 in bacon_video_widget_set_connection_speed ()
#4  0xb74b3423 in IA__g_cclosure_marshal_VOID__VOID (closure=0x899b300, return_value=0x0, n_param_values=1,
    param_values=0xbffedb6c, invocation_hint=0xbffeda5c, marshal_data=0x8064e3d) at gmarshal.c:77
#5  0xb74a779f in IA__g_closure_invoke (closure=0x899b300, return_value=0xbffed800, n_param_values=3221149696,
    param_values=0xbffed800, invocation_hint=0xbffed800) at gclosure.c:490
#6  0xb74b62ea in signal_emit_unlocked_R (node=0x8150470, detail=0, instance=0x8151010, emission_return=0x0,
    instance_and_params=0xbffedb6c) at gsignal.c:2438
#7  0xb74b7b19 in IA__g_signal_emit_valist (instance=0x8151010, signal_id=156, detail=0, var_args=<value optimized out>)
    at gsignal.c:2197
#8  0xb74b7e89 in IA__g_signal_emit (instance=0xbffed800, signal_id=3221149696, detail=3221149696) at gsignal.c:2241
#9  0xb7b33efb in gtk_combo_box_set_active_internal (combo_box=0x8151010, path=0x89a35d8) at gtkcombobox.c:4464
#10 0xb7b34416 in IA__gtk_combo_box_set_active_iter (combo_box=0x8151010, iter=0x83c81d0) at gtkcombobox.c:4518
#11 0xb7b34509 in gtk_combo_box_menu_item_activate (item=0xbffed800, user_data=0x8151010) at gtkcombobox.c:2772
#12 0xb74b3423 in IA__g_cclosure_marshal_VOID__VOID (closure=0x8284ce0, return_value=0x0, n_param_values=1,
    param_values=0xbffee09c, invocation_hint=0xbffedf8c, marshal_data=0xb7b34450) at gmarshal.c:77
#13 0xb74a779f in IA__g_closure_invoke (closure=0x8284ce0, return_value=0xbffed800, n_param_values=3221149696,
    param_values=0xbffed800, invocation_hint=0xbffed800) at gclosure.c:490
#14 0xb74b62ea in signal_emit_unlocked_R (node=0x80f39f8, detail=0, instance=0x814ab60, emission_return=0x0,
    instance_and_params=0xbffee09c) at gsignal.c:2438
#15 0xb74b7b19 in IA__g_signal_emit_valist (instance=0x814ab60, signal_id=98, detail=0, var_args=<value optimized out>)
    at gsignal.c:2197
#16 0xb74b7e89 in IA__g_signal_emit (instance=0xbffed800, signal_id=3221149696, detail=3221149696) at gsignal.c:2241
#17 0xb7ca382d in IA__gtk_widget_activate (widget=0x814ab60) at gtkwidget.c:3782
#18 0xb7bd027f in IA__gtk_menu_shell_activate_item (menu_shell=0x8155000, menu_item=0x814ab60, force_deactivate=1)
    at gtkmenushell.c:1057
#19 0xb7bd0551 in gtk_menu_shell_button_release (widget=0x8155000, event=0x833b400) at gtkmenushell.c:663
#20 0xb7bc6d04 in gtk_menu_button_release (widget=0x8155000, event=0xbffed800) at gtkmenu.c:2571
#21 0xb7bc1610 in _gtk_marshal_BOOLEAN__BOXED (closure=0x80ee9b0, return_value=0xbffee500, n_param_values=2,
    param_values=0xbffee5fc, invocation_hint=0xbffee4ec, marshal_data=0xb7bc6cb5) at gtkmarshalers.c:83
#22 0xb74a716f in g_type_class_meta_marshal (closure=0x80ee9b0, return_value=0xbffed800, n_param_values=3221149696,
    param_values=0xbffee5fc, invocation_hint=0xbffed800, marshal_data=0xbffed800) at gclosure.c:567
#23 0xb74a779f in IA__g_closure_invoke (closure=0x80ee9b0, return_value=0xbffed800, n_param_values=3221149696,
    param_values=0xbffed800, invocation_hint=0xbffed800) at gclosure.c:490
#24 0xb74b69ce in signal_emit_unlocked_R (node=0x80eebe0, detail=0, instance=0x8155000, emission_return=0xbffee7bc,
    instance_and_params=0xbffee5fc) at gsignal.c:2476
#25 0xb74b7886 in IA__g_signal_emit_valist (instance=0x8155000, signal_id=43, detail=0, var_args=0xbffee840 "X���")
    at gsignal.c:2207
#26 0xb74b7e89 in IA__g_signal_emit (instance=0xbffed800, signal_id=3221149696, detail=3221149696) at gsignal.c:2241
#27 0xb7ca3a0f in gtk_widget_event_internal (widget=0x8155000, event=0x833b400) at gtkwidget.c:3751
#28 0xb7bbfd8d in IA__gtk_propagate_event (widget=0x8155000, event=0x833b400) at gtkmain.c:2218
#29 0xb7bc019b in IA__gtk_main_do_event (event=0x833b400) at gtkmain.c:1447
#30 0xb7a62ddc in gdk_event_dispatch (source=0xbffed800, callback=0, user_data=0x0) at gdkevents-x11.c:2291
#31 0xb73ad876 in IA__g_main_context_dispatch (context=0x80c1990) at gmain.c:1916
---Type <return> to continue, or q <return> to quit---
#32 0xb73b0936 in g_main_context_iterate (context=0x80c1990, block=1, dispatch=1, self=0x8086088) at gmain.c:2547
#33 0xb73b0c58 in IA__g_main_loop_run (loop=0x83aaa20) at gmain.c:2751
#34 0xb7bbf495 in IA__gtk_main () at gtkmain.c:1026
#35 0x08063f2a in main ()