.
Thread 1 (process 3551):
#0  IA__g_logv (log_domain=<value optimized out>, 
    log_level=G_LOG_LEVEL_ERROR, 
    format=0x69e988 "SessionClient: changing \"client_id\" while connected to session manager is not possible.", 
    args1=0xbf9d7e7c "?\177\235??~\235?\020X\202")
    at /build/buildd/glib2.0-2.21.4/glib/gmessages.c:512
	depth = 0
	domain = <value optimized out>
	data = (gpointer) 0x0
	log_func = (GLogFunc) 0xdf3320 <IA__g_log_default_handler>
	domain_fatal_mask = 5
	test_level = G_LOG_FLAG_FATAL
	was_recursion = 0
	i = <value optimized out>
#1  0x00df3d86 in IA__g_log (log_domain=0x696ef0 "libxfcegui4", 
    log_level=G_LOG_LEVEL_ERROR, 
    format=0x69e988 "SessionClient: changing \"client_id\" while connected to session manager is not possible.")
    at /build/buildd/glib2.0-2.21.4/glib/gmessages.c:526
No locals.
#2  0x0068eba0 in client_session_set_client_id (session_client=0x8ba4d38, 
    value=0x8b69350 "25e26bb7d-90cc-40fc-b7b4-6c95c5180609")
    at session-client.c:985
No locals.
#3  0x0804d6bd in xfpm_start (bus=0x8ba6ed4) at xfpm-main.c:81
	manager = (XfpmManager *) 0x8ba6ed4
	session = (XfpmSession *) 0x8b547a8
	error = (GError *) 0x0
#4  0x0804dee7 in main (argc=1, argv=0xbf9d8094) at xfpm-main.c:245
	bus = (DBusGConnection *) 0x8ba6ed4
	error = (GError *) 0x0
	proxy = <value optimized out>
	run = 0
	quit = 0
	config = 0
	version = 0
	reload = 1
	option_entries = {{long_name = 0x8062606 "run", short_name = 114 'r', 
    flags = 1, arg = G_OPTION_ARG_NONE, arg_data = 0xbf9d7fe8, 
    description = 0x0, arg_description = 0x0}, {
    long_name = 0x806260a "no-daemon", short_name = 0 '\0', flags = 2, 
    arg = G_OPTION_ARG_NONE, arg_data = 0x806c46c, 
    description = 0x8062614 "Do not daemonize", arg_description = 0x0}, {
    long_name = 0x806315c "restart", short_name = 0 '\0', flags = 2, 
    arg = G_OPTION_ARG_NONE, arg_data = 0xbf9d7fd8, 
    description = 0x80623f8 "Restart the running instance of Xfce power manager", arg_description = 0x0}, {long_name = 0x8062625 "customize", 
    short_name = 99 'c', flags = 2, arg = G_OPTION_ARG_NONE, 
    arg_data = 0xbf9d7fe0, 
    description = 0x806262f "Show the configuration dialog", 
    arg_description = 0x0}, {long_name = 0x8064d86 "quit", 
    short_name = 113 'q', flags = 2, arg = G_OPTION_ARG_NONE, 
    arg_data = 0xbf9d7fe4, 
    description = 0x806242c "Quit any running xfce power manager", 
    arg_description = 0x0}, {long_name = 0x806264d "version", 
    short_name = 86 'V', flags = 2, arg = G_OPTION_ARG_NONE, 
    arg_data = 0xbf9d7fdc, description = 0x8062655 "Version information", 
    arg_description = 0x0}, {long_name = 0x8062669 "sm-client-id", 
    short_name = 0 '\0', flags = 1, arg = G_OPTION_ARG_STRING, 
    arg_data = 0x806c470, description = 0x0, arg_description = 0x0}, {
    long_name = 0x0, short_name = 0 '\0', flags = 0, arg = G_OPTION_ARG_NONE, 
    arg_data = 0x0, description = 0x0, arg_description = 0x0}}