#0  0xb5c9cca4 in engine_update_composite_device (manager=0x86fa000, original_device=0x86fa228) at gsd-power-manager.c:844
        i = 0
        percentage = 0
        energy = 0
        energy_full = 0
        energy_rate = 0
        energy_total = 0
        energy_full_total = 0
        energy_rate_total = 0
        time_to_empty = 0
        time_to_full = 0
        battery_devices = 0
        is_charging = 0
        is_discharging = 0
        is_fully_charged = 1
        array = 0x0
        device = <optimized out>
        state = <optimized out>
        kind = <optimized out>
        original_kind = <optimized out>
#1  0xb5c9e0b3 in engine_charge_low (device=0x86fa228, manager=0x86fa000) at gsd-power-manager.c:1320
        message = 0x0
        remaining_text = <optimized out>
        percentage = <optimized out>
        ret = <optimized out>
        icon = 0x0
        kind = <optimized out>
        title = 0x0
        error = <optimized out>
#2  engine_device_changed_cb (client=0x86ec550, device=0x86fa228, manager=0x86fa000) at gsd-power-manager.c:1831
        kind = UP_DEVICE_KIND_BATTERY
        state = 141372664
        state_old = <optimized out>
        warning_old = 3039722667
        warning = 3039813976
#3  0xb7064930 in g_enum_complete_type_info (g_enum_type=2, info=0xb52fe158, const_values=0xb52fdda8) at /build/buildd/glib2.0-2.32.0/./gobject/genums.c:288
        __PRETTY_FUNCTION__ = "g_enum_complete_type_info"
#4  0x086fa228 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)