#0  0x00007f5c009200b6 in libusb_exit (ctx=0x0) at ../../libusb/core.c:1655
        __FUNCTION__ = "libusb_exit"
#1  0x0000000000415a9d in up_device_csr_finalize (object=0x1a4c000) at up-device-csr.c:327
        csr = 0x1a4c000
        __PRETTY_FUNCTION__ = "up_device_csr_finalize"
#2  0x00007f5c004d8e73 in g_object_unref (_object=0x1a4c000) at /build/buildd/glib2.0-2.32.0/./gobject/gobject.c:3018
        weak_locations = <optimized out>
        object = 0x1a4c000
        old_ref = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_unref"
#3  0x0000000000411922 in up_backend_device_new (native=0x1a3e190, backend=0x1a3e1e0) at up-backend.c:139
        native_path = <optimized out>
        device = 0x1a4c000
        ret = <optimized out>
        subsys = <optimized out>
        input = <optimized out>
#4  up_backend_device_add (backend=0x1a3e1e0, native=0x1a3e190) at up-backend.c:229
        object = <optimized out>
        device = <optimized out>
#5  0x000000000041219b in up_backend_coldplug (backend=0x1a3e1e0, daemon=0x1a32020) at up-backend.c:324
        native = <optimized out>
        devices = 0x1a27b60
        l = 0x1a27b60
        i = <optimized out>
        ret = <optimized out>
        subsystems = {0x41c3a7 "power_supply", 0x41c3c9 "usb", 0x41c3b4 "tty", 0x41c3cd "input", 0x0}
#6  0x0000000000408cef in up_daemon_startup (daemon=<optimized out>) at up-daemon.c:752
        ret = <optimized out>
        on_battery = <optimized out>
        on_low_battery = <optimized out>
        priv = 0x1a32040
#7  0x0000000000406c86 in main (argc=1, argv=0x7fff48a50158) at up-main.c:289
        error = 0x0
        daemon = 0x1a32020
        qos = 0x1a29a30
        kbd_backlight = 0x1a2cb80
        wakeups = 0x1a3de30
        context = <optimized out>
        bus_proxy = <optimized out>
        bus = <optimized out>
        ret = <optimized out>
        retval = 1
        timed_exit = 0
        immediate_exit = 0
        session_bus = 0
        timer_id = 0
        verbose = 0
        options = {{long_name = 0x41bfee "timed-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff48a5003c, description = 0x41bff9 "Exit after a small delay", arg_description = 0x0}, {long_name = 0x41c012 "immediate-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff48a50040, description = 0x41c0c8 "Exit after the engine has loaded", arg_description = 0x0}, {long_name = 0x41c021 "test", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff48a50044, description = 0x41c0f0 "Run on the session bus (only for testing)", arg_description = 0x0}, {long_name = 0x41c026 "verbose", short_name = 118 'v', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff48a50048, description = 0x41c120 "Show extra debugging information", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}