#0  gtk_tree_store_append (tree_store=0x1, iter=0x7fff6809f310, parent=0x0) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtktreestore.c:1737
        priv = <optimized out>
        parent_node = <optimized out>
        __PRETTY_FUNCTION__ = "gtk_tree_store_append"
#1  0x00007f3c567b4ebd in gcm_prefs_add_device (prefs=0x7f3c68826000, device=0x7f3c689922d0) at cc-color-panel.c:1716
        ret = <optimized out>
        error = 0x0
        kind = <optimized out>
        icon_name = 0x7f3c567b85df "printer"
        id = <optimized out>
        sort = 0x7f3c6861ecc0 "1Hewlett Packard - HP Color LaserJet 2605"
        title = <optimized out>
        parent = {stamp = 1, user_data = 0x7f3c689922d0, user_data2 = 0x7fff6809f440, user_data3 = 0x7f3c6544c1c0}
        priv = 0x7f3c68826110
#2  0x00007f3c567b533c in gcm_prefs_device_added_cb (client=<optimized out>, device=<optimized out>, prefs=0x7f3c68826000) at cc-color-panel.c:1810
No locals.
#3  0x00007f3c65b780a4 in g_closure_invoke (closure=0x7f3c688318e0, return_value=0x0, n_param_values=2, param_values=0x7f3c68908e10, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
        marshal = 0x7f3c65b7a0c0 <g_cclosure_marshal_VOID__OBJECT>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#4  0x00007f3c65b8a02a in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x7f3c688ae6a0, emission_return=0x0, instance_and_params=0x7f3c68908e10) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
        tmp = <optimized out>
        handler = 0x7f3c688ae6d0
        accumulator = 0x0
        emission = {next = 0x7fff6809fb30, instance = 0x7f3c688ae6a0, ihint = {signal_id = 319, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f3c6882e1d0
        hlist = 0x7f3c6545c1d0
        handler_list = 0x7f3c688ae6d0
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 319
        max_sequential_handler_number = 12522
        return_value_altered = 0
#5  0x00007f3c65b936b1 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3003
        instance_and_params = 0x7f3c68908e10
        signal_return_type = 4
        param_values = 0x7f3c68908e28
        node = 0x7f3c6889d8a0
        i = <optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#6  0x00007f3c65b93852 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff6809f7a0, reg_save_area = 0x7fff6809f6e0}}
#7  0x00007f3c565976e9 in cd_client_dbus_signal_cb (proxy=<optimized out>, sender_name=<optimized out>, signal_name=<optimized out>, parameters=0x7f3c68944200, client=0x7f3c688ae6a0) at cd-client.c:209
        device = 0x7f3c689922d0
        profile = 0x0
        sensor = 0x0
        object_path_tmp = 0x7f3c6886ba50 "/org/freedesktop/ColorManager/devices/cups_ColorLaser2605"
#8  0x00007f3c6165aa14 in ffi_call_unix64 () at ../src/x86/unix64.S:75
No locals.
#9  0x00007f3c6165a435 in ffi_call (cif=0x7fff6809f9a0, fn=0x7f3c56597610 <cd_client_dbus_signal_cb>, rvalue=<optimized out>, avalue=<optimized out>) at ../src/x86/ffi64.c:486
        classes = {X86_64_INTEGER_CLASS, 32572, X86_64_NO_CLASS, X86_64_NO_CLASS}
        stack = 0x7fff6809f720 "p\253jh<\177"
        argp = 0x7fff6809f7d0 ""
        arg_types = <optimized out>
        gprcount = 5
        ssecount = <optimized out>
        ngpr = 1
        nsse = 0
        i = <optimized out>
        avn = <optimized out>
        ret_in_memory = <optimized out>
        reg_args = 0x7fff6809f720
#10 0x00007f3c65b78567 in g_cclosure_marshal_generic (closure=0x7f3c688d02f0, return_gvalue=0x0, n_param_values=4, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=0x7f3c56597610) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:1147
        rtype = 0x7f3c6165ae40
        rvalue = 0x7fff6809f940
        n_args = 5
        atypes = 0x7fff6809f900
        args = 0x7fff6809f8c0
        i = <optimized out>
        cif = {abi = FFI_UNIX64, nargs = 5, arg_types = 0x7fff6809f900, rtype = 0x7f3c6165ae40, bytes = 0, flags = 0}
        cc = 0x7f3c688d02f0
#11 0x00007f3c65b780a4 in g_closure_invoke (closure=0x7f3c688d02f0, return_value=0x0, n_param_values=4, param_values=0x7f3c68951000, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
        marshal = 0x7f3c65b783d0 <g_cclosure_marshal_generic>
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#12 0x00007f3c65b8a02a in signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x7f3c686aab70, emission_return=0x0, instance_and_params=0x7f3c68951000) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
        tmp = <optimized out>
        handler = 0x7f3c688d1cc0
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x7f3c686aab70, ihint = {signal_id = 262, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f3c687a81c0
        hlist = 0x7f3c6545c1d0
        handler_list = 0x7f3c688d1cc0
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 262
        max_sequential_handler_number = 12522
        return_value_altered = 0
#13 0x00007f3c65b936b1 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3003
        instance_and_params = 0x7f3c68951000
        signal_return_type = 4
        param_values = 0x7f3c68951018
        node = 0x7f3c687a6dd0
        i = <optimized out>
        n_params = 3
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#14 0x00007f3c65b93852 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060
        var_args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff6809fe20, reg_save_area = 0x7fff6809fd60}}
#15 0x00007f3c65e743ae in on_signal_received (connection=<optimized out>, sender_name=0x7f3c3c05e980 ":1.26", object_path=<optimized out>, interface_name=<optimized out>, signal_name=0x7f3c3c002530 "DeviceAdded", parameters=0x7f3c68944200, user_data=0x7f3c68851ba0) at /build/buildd/glib2.0-2.30.0/./gio/gdbusproxy.c:888
        data = 0x7f3c68851ba0
        proxy = 0x7f3c686aab70
#16 0x00007f3c65e6382e in emit_signal_instance_in_idle_cb (data=0x7f3c3c051860) at /build/buildd/glib2.0-2.30.0/./gio/gdbusconnection.c:3424
        signal_instance = 0x7f3c3c051860
        parameters = 0x7f3c68944200
        has_subscription = 1
#17 0x00007f3c656b2a5d in g_main_dispatch (context=0x7f3c684124a0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7f3c656ae790 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7f3c3c051860
        callback = 0x7f3c65e637b0 <emit_signal_instance_in_idle_cb>
        cb_funcs = 0x7f3c65962670
        cb_data = 0x7f3c3c044ef0
        current_source_link = {data = 0x7f3c3c040950, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7f3c3c040950
        current = 0x7f3c685a9710
        i = <optimized out>
#18 g_main_context_dispatch (context=0x7f3c684124a0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#19 0x00007f3c656b3258 in g_main_context_iterate (context=0x7f3c684124a0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 2147483647
        timeout = 2977
        some_ready = 1
        nfds = 6
        allocated_nfds = <optimized out>
        fds = <optimized out>
#20 0x00007f3c656b3792 in g_main_loop_run (loop=0x7f3c68677bc0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#21 0x00007f3c67010e1d in gtk_main () at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmain.c:1367
        loop = 0x7f3c68677bc0
#22 0x00007f3c65e4fa4e in g_application_run (application=0x7f3c68557eb0, argc=<optimized out>, argv=0x7fff680a0138) at /build/buildd/glib2.0-2.30.0/./gio/gapplication.c:1323
        arguments = 0x7f3c68677bc0
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#23 0x00007f3c6793e3bc in main (argc=1, argv=0x7fff680a0138) at control-center.c:201
        shell = <optimized out>
        application = 0x7f3c68557eb0
        status = <optimized out>