.
Thread 2 (process 2471):
#0  0xffffe410 in ?? ()
#1  0xb407b318 in ?? ()
#2  0x00000001 in ?? ()
#3  0x00000000 in ?? ()
.
Thread 1 (process 2464):
#0  0xb6f12cab in IA__g_logv (log_domain=<value optimized out>, log_level=G_LOG_LEVEL_ERROR, format=0xb6f5b610 "file %s: line %d (%s): assertion failed: (%s)", 
    args1=0xbf8f59ac "[_\207³D\001") at /build/buildd/glib2.0-2.13.6/glib/gmessages.c:493
	buffer = "\000hU\217¿ \t\000\000\001\000\000\000\020/\r·D\000\000\000\002\200\000\000\234\aη\020ôÍ·\006\000\000\000\001\000\000\000P¤â\bxf\020·p\vη\001\000\000\000\230U\217¿\200\vη¸V\217¿\026l\016·ài\020·\001\000\000\000\001\000\000\000\214W\217¿lV\217¿\003\000\000\000\002\000\000\000xf\020·\020\201[\b RR\b\004\000¢\bxf\020·\020\201[\b RR\b\224V\217¿dV\217¿P¤â\b\000\000\000\000ÈèF\bä$\017\001t\022\f·\001\000\000\000\000\000\000\000\000èF\b\000dâ\b\000\000\000\000\"\001\000\000\034\021\000\000\001\000\000\000\000dâ\b°èF\b\023h\r"...
	depth = <value optimized out>
	domain = <value optimized out>
	data = (gpointer) 0x0
	log_func = (GLogFunc) 0xb6f13800 <IA__g_log_default_handler>
	domain_fatal_mask = 5
	test_level = <value optimized out>
	was_recursion = 0
	i = <value optimized out>
#1  0xb6f12f29 in IA__g_log (log_domain=0xb3875c7f "Rhythmbox", log_level=G_LOG_LEVEL_ERROR, format=0xb6f5b610 "file %s: line %d (%s): assertion failed: (%s)")
    at /build/buildd/glib2.0-2.13.6/glib/gmessages.c:517
	args = 0xbf8f59ac "[_\207³D\001"
#2  0xb6f12fa6 in IA__g_assert_warning (log_domain=0xb3875c7f "Rhythmbox", file=0xb3875f5b "rb-mtp-source.c", line=324, pretty_function=0xb387619d "load_mtp_db_idle_cb", 
    expression=0xb3876026 "db != NULL") at /build/buildd/glib2.0-2.13.6/glib/gmessages.c:552
No locals.
#3  0xb38692f5 in load_mtp_db_idle_cb (source=0x82c40e0) at rb-mtp-source.c:324
	db = (RhythmDB *) 0x0
	tracks = <value optimized out>
	__PRETTY_FUNCTION__ = "load_mtp_db_idle_cb"
	__FUNCTION__ = "load_mtp_db_idle_cb"
#4  0xb6f08541 in g_idle_dispatch (source=0x8e2f7c8, callback=0x68, user_data=0x82c40e0) at /build/buildd/glib2.0-2.13.6/glib/gmain.c:4131
No locals.
#5  0xb6f0a10c in IA__g_main_context_dispatch (context=0x817d690) at /build/buildd/glib2.0-2.13.6/glib/gmain.c:2061
No locals.
#6  0xb6f0d54f in g_main_context_iterate (context=0x817d690, block=1, dispatch=1, self=0x80fa408) at /build/buildd/glib2.0-2.13.6/glib/gmain.c:2694
	got_ownership = <value optimized out>
	max_priority = 200
	timeout = 0
	some_ready = 1
	nfds = <value optimized out>
	allocated_nfds = <value optimized out>
	fds = (GPollFD *) 0x8a53988
	__PRETTY_FUNCTION__ = "g_main_context_iterate"
#7  0xb6f0d8f9 in IA__g_main_loop_run (loop=0x854ae40) at /build/buildd/glib2.0-2.13.6/glib/gmain.c:2898
	got_ownership = -1211239408
	self = (GThread *) 0x80fa408
	__PRETTY_FUNCTION__ = "IA__g_main_loop_run"
#8  0xb770aea4 in IA__gtk_main () at /build/buildd/gtk+2.0-2.11.5/gtk/gtkmain.c:1144
	tmp_list = (GList *) 0x819d254
	functions = (GList *) 0x0
	init = (GtkInitFunction *) 0x81ba008
	loop = (GMainLoop *) 0x854ae40
#9  0x080638e4 in main (argc=1, argv=0xbf8f5c64) at main.c:306
	program = (GnomeProgram *) 0x8111410
	session_bus = (DBusGConnection *) 0x819d254
	error = (GError *) 0x0
	rb_shell = (RBShell *) 0x81ba008
	new_argv = (char **) 0x80fc600
	context = <value optimized out>
	options = {{long_name = 0x80f1fec "debug", short_name = 100 'd', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x80f9884, description = 0x80dbf50 "Enable debug output", 
    arg_description = 0x0}, {long_name = 0x80dbf64 "debug-match", short_name = 68 'D', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x80f9888, 
    description = 0x80dc0f0 "Enable debug output matching a specified string", arg_description = 0x0}, {long_name = 0x80dbf70 "no-update", short_name = 0 '\0', flags = 0, 
    arg = G_OPTION_ARG_NONE, arg_data = 0x80f98a0, description = 0x80dc120 "Do not update the library with file changes", arg_description = 0x0}, {
    long_name = 0x80dbf7a "no-registration", short_name = 110 'n', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x80f988c, description = 0x80dbf8a "Do not register the shell", 
    arg_description = 0x0}, {long_name = 0x80dbfa4 "dry-run", short_name = 0 '\0', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x80f989c, 
    description = 0x80dc14c "Don't save any data permanently (implies --no-registration)", arg_description = 0x0}, {long_name = 0x80dbfac "rhythmdb-file", short_name = 0 '\0', 
    flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x80f9898, description = 0x80dbfba "Path for database file to use", arg_description = 0x0}, {
    long_name = 0x80dbfd8 "playlists-file", short_name = 0 '\0', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0x80f9894, 
    description = 0x80dc188 "Path for playlists file to use", arg_description = 0x0}, {long_name = 0x80ddeb0 "quit", short_name = 113 'q', flags = 0, arg = G_OPTION_ARG_NONE, 
    arg_data = 0x80f9890, description = 0x80dbfe7 "Quit Rhythmbox", arg_description = 0x0}, {long_name = 0x80e265e "", short_name = 0 '\0', flags = 0, 
    arg = G_OPTION_ARG_STRING_ARRAY, arg_data = 0x80f98a4, description = 0x0, arg_description = 0x80dbff6 "[URI...]"}, {long_name = 0x0, short_name = 0 '\0', flags = 0, 
    arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
	__FUNCTION__ = "main"