markus@computer:~$ gdb rhythmbox
GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/rhythmbox...Reading symbols from /usr/lib/debug/usr/bin/rhythmbox...done.
done.
(gdb) run
Starting program: /usr/bin/rhythmbox 
[Thread debugging using libthread_db enabled]
[New Thread 0x7fffe43e1700 (LWP 2616)]
[New Thread 0x7fffe006a700 (LWP 2617)]
[New Thread 0x7fffdf239700 (LWP 2618)]

(rhythmbox:2613): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
[New Thread 0x7fffe3be0700 (LWP 2619)]
[Thread 0x7fffe3be0700 (LWP 2619) exited]

(rhythmbox:2613): GLib-GObject-CRITICAL **: g_object_set_qdata: assertion `G_IS_OBJECT (object)' failed
[Thread 0x7fffdf239700 (LWP 2618) exited]
[New Thread 0x7fffdf239700 (LWP 2620)]
[New Thread 0x7fffe3be0700 (LWP 2621)]
[Thread 0x7fffe3be0700 (LWP 2621) exited]
[Thread 0x7fffdf239700 (LWP 2620) exited]
[New Thread 0x7fffdf239700 (LWP 2624)]

Program received signal SIGSEGV, Segmentation fault.
rb_dacp_pairing_page_remote_found (page=0x76c411c31021da00)
    at rb-dacp-pairing-page.c:382
382	rb-dacp-pairing-page.c: No such file or directory.
	in rb-dacp-pairing-page.c
(gdb) bt
#0  rb_dacp_pairing_page_remote_found (page=0x76c411c31021da00)
    at rb-dacp-pairing-page.c:382
#1  0x00007fffd3597f6e in dacp_remote_added (share=0x7eb260, 
    service_name=0x1770e00 "7f41d03b32132c9480a5d9f4f3dc30f5ff10d9f8", 
    display_name=0x17de6b0 "markuss iPod", plugin=0x14ed030)
    at rb-dacp-pairing-page.c:617
#2  0x00007ffff374f81c in g_closure_invoke (closure=0x1513390, 
    return_value=0x0, n_param_values=3, param_values=0x1839940, 
    invocation_hint=0x7fffffffd4e0)
    at /build/buildd/glib2.0-2.28.5/./gobject/gclosure.c:767
#3  0x00007ffff3761019 in signal_emit_unlocked_R (node=<value optimized out>, 
    detail=0, instance=0x7eb260, emission_return=0x0, 
    instance_and_params=0x1839940)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:3252
#4  0x00007ffff376a258 in g_signal_emit_valist (
    instance=<value optimized out>, signal_id=<value optimized out>, 
    detail=<value optimized out>, var_args=<value optimized out>)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:2983
#5  0x00007ffff376a41f in g_signal_emit (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:3040
#6  0x00007ffff374f81c in g_closure_invoke (closure=0xefa5f0, 
    return_value=0x0, n_param_values=2, param_values=0x182b060, 
---Type <return> to continue, or q <return> to quit---
    invocation_hint=0x7fffffffd900)
    at /build/buildd/glib2.0-2.28.5/./gobject/gclosure.c:767
#7  0x00007ffff3761019 in signal_emit_unlocked_R (node=<value optimized out>, 
    detail=0, instance=0x9245e0, emission_return=0x0, 
    instance_and_params=0x182b060)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:3252
#8  0x00007ffff376a258 in g_signal_emit_valist (
    instance=<value optimized out>, signal_id=<value optimized out>, 
    detail=<value optimized out>, var_args=<value optimized out>)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:2983
#9  0x00007ffff376a41f in g_signal_emit (instance=<value optimized out>, 
    signal_id=<value optimized out>, detail=<value optimized out>)
    at /build/buildd/glib2.0-2.28.5/./gobject/gsignal.c:3040
#10 0x00007fffd3370d0f in ?? () from /usr/lib/libdmapsharing.so.2
#11 0x00007fffd2f42947 in avahi_service_resolver_event ()
   from /usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#12 0x00007fffd2f3e265 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#13 0x00007ffff3bbeac6 in dbus_connection_dispatch ()
   from /lib/x86_64-linux-gnu/libdbus-1.so.3
#14 0x00007fffd2f44ad6 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#15 0x00007fffd2d36373 in ?? ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/x86_64-linux-gnu/libavahi-glib.so.1
#16 0x00007ffff3087bcd in g_main_dispatch (context=0x7d0250)
    at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:2440
#17 g_main_context_dispatch (context=0x7d0250)
    at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3013
#18 0x00007ffff30883a8 in g_main_context_iterate (context=0x7d0250, 
    block=<value optimized out>, dispatch=1, self=<value optimized out>)
    at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3091
#19 0x00007ffff30889f2 in g_main_loop_run (loop=0x1649d60)
    at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3299
#20 0x00007ffff6cfaa37 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.24.4/gtk/gtkmain.c:1257
#21 0x0000000000404f4c in main (argc=1, argv=0x7fffffffe318) at main.c:336
(gdb) 

