#0  g_type_check_instance_is_a (type_instance=0x7f2cff62f6d0, iface_type=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gtype.c:3961
        node = 0x72657374
        iface = 0x7f2cff5aac48
        check = 0
#1  0x00007f2cfbf54c44 in g_object_ref (_object=0x7f2cff62f6d0) at /build/buildd/glib2.0-2.28.6/./gobject/gobject.c:2636
        __inst = 0x7f2cff62f6d0
        __r = <value optimized out>
        _g_boolean_var_ = <value optimized out>
        object = 0x7f2cff62f6d0
        old_val = <value optimized out>
        __PRETTY_FUNCTION__ = "g_object_ref"
#2  0x00007f2cfda82798 in gtk_widget_set_style_internal (widget=0x7f2cff66cc20, style=0x7f2cff62f6d0, initial_emission=1) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkwidget.c:6966
        previous_style = 0x7f2cff636020
#3  0x00007f2cfda8328c in IA__gtk_widget_realize (widget=0x7f2cff66cc20) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkwidget.c:3530
        mode = <value optimized out>
        shape_info = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__gtk_widget_realize"
#4  0x00007f2cfda83ea8 in IA__gtk_widget_set_parent (widget=0x7f2cff66cc20, parent=0x7f2cff5ff480) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkwidget.c:6430
        data = {state = GTK_STATE_NORMAL, state_restoration = 0, parent_sensitive = 1, use_forall = 0}
        __PRETTY_FUNCTION__ = "IA__gtk_widget_set_parent"
#5  0x00007f2cfd8a9e9b in gtk_bin_add (container=0x7f2cff5ff480, child=0x7f2cff66cc20) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkbin.c:107
        bin = 0x7f2cff5ff480
#6  0x00007f2cfbf5381c in g_closure_invoke (closure=0x7f2cff5fa0d0, return_value=0x0, n_param_values=2, param_values=0x7f2cffea0f30, invocation_hint=0x7fff32035450) at /build/buildd/glib2.0-2.28.6/./gobject/gclosure.c:767
        marshal = <value optimized out>
        marshal_data = <value optimized out>
        in_marshal = 0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#7  0x00007f2cfbf647e3 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x7f2cff5ff480, emission_return=0x0, instance_and_params=0x7f2cffea0f30) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3182
        accumulator = 0x0
        emission = {next = 0x7fff32035890, instance = 0x7f2cff5ff480, ihint = {signal_id = 80, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 139831239794416}
        class_closure = 0x7f2cff5fa0d0
        handler_list = <value optimized out>
        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 = 80
        max_sequential_handler_number = 78282
        return_value_altered = <value optimized out>
#8  0x00007f2cfbf6e258 in g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>, var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:2983
        instance_and_params = 0x7f2cffea0f30
        signal_return_type = 4
        param_values = 0x7f2cffea0f48
        node = 0x7f2cff5fa160
        i = <value optimized out>
        n_params = 1
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#9  0x00007f2cfbf6e41f in g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3040
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff32035740, reg_save_area = 0x7fff32035680}}
#10 0x00007f2cf36a2ff9 in pager_plugin_screen_layout_changed (plugin=0x7f2cff5ff480) at pager.c:307
        orientation = <value optimized out>
        __PRETTY_FUNCTION__ = "pager_plugin_screen_layout_changed"
#11 0x00007f2cfbf5381c in g_closure_invoke (closure=0x7f2cff67f290, return_value=0x0, n_param_values=1, param_values=0x7f2cffe3bda0, invocation_hint=0x7fff320358a0) at /build/buildd/glib2.0-2.28.6/./gobject/gclosure.c:767
        marshal = <value optimized out>
        marshal_data = <value optimized out>
        in_marshal = 0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#12 0x00007f2cfbf65019 in signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x7f2cff5d2f50, emission_return=0x0, instance_and_params=0x7f2cffe3bda0) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3252
        tmp = <value optimized out>
        handler = 0x7f2cff67f440
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x7f2cff5d2f50, ihint = {signal_id = 6, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x7f2cff5ab780
        handler_list = 0x7f2cff654130
        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 = 6
        max_sequential_handler_number = 78280
        return_value_altered = 1
#13 0x00007f2cfbf6e258 in g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>, var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:2983
        instance_and_params = 0x7f2cffe3bda0
        signal_return_type = 4
        param_values = 0x7f2cffe3bdb8
        node = 0x7f2cff5ab7b0
        i = <value optimized out>
        n_params = 0
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#14 0x00007f2cfbf6e60d in g_signal_emit_by_name (instance=0x7f2cff5d2f50, detailed_signal=0x7f2cfd3f30c3 "monitors-changed") at /build/buildd/glib2.0-2.28.6/./gobject/gsignal.c:3077
        var_args = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fff32035c40, reg_save_area = 0x7fff32035b50}}
        detail = 0
        signal_id = 6
        __PRETTY_FUNCTION__ = "g_signal_emit_by_name"
#15 0x00007f2cfd3cab8d in process_monitors_change (screen=0x7f2cff5d2f50, event=<value optimized out>) at /build/buildd/gtk+2.0-2.24.4/gdk/x11/gdkscreen-x11.c:1163
        n_monitors = 1
        primary_monitor = 0
        screen_x11 = 0x7f2cff5d2f50
        monitors = 0x7f2cffec3f10
        changed = 1
#16 _gdk_x11_screen_size_changed (screen=0x7f2cff5d2f50, event=<value optimized out>) at /build/buildd/gtk+2.0-2.24.4/gdk/x11/gdkscreen-x11.c:1198
        width = 1600
        height = 1200
        display_x11 = <value optimized out>
#17 0x00007f2cfd3be9a2 in gdk_event_translate (display=0x7f2cff5d1000, event=<value optimized out>, xevent=<value optimized out>, return_exposes=0) at /build/buildd/gtk+2.0-2.24.4/gdk/x11/gdkevents-x11.c:2126
        window = 0x7f2cff5d8000
        window_private = 0x7f2cff5d8000
        filter_window = <value optimized out>
        window_impl = 0x7f2cff5d4480
        return_val = 1
        screen = 0x7f2cff5d2f50
        screen_x11 = 0x7f2cff5d2f50
        toplevel = <value optimized out>
        display_x11 = 0x7f2cff5d1000
        xwindow = 177
        filter_xwindow = <value optimized out>
#18 0x00007f2cfd3bf4f8 in _gdk_events_queue (display=0x7f2cff5d1000) at /build/buildd/gtk+2.0-2.24.4/gdk/x11/gdkevents-x11.c:2310
        node = 0x7f2cff862000
        event = 0x7f2cffb05960
        xevent = {type = 101, xany = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177}, xkey = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, root = 177, subwindow = 50828, time = 2355767117, x = 65536, y = 1, x_root = 1600, y_root = 1200, state = 422, keycode = 317, same_screen = 0}, xbutton = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, root = 177, subwindow = 50828, time = 2355767117, x = 65536, y = 1, x_root = 1600, y_root = 1200, state = 422, button = 317, same_screen = 0}, xmotion = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, root = 177, subwindow = 50828, time = 2355767117, x = 65536, y = 1, x_root = 1600, y_root = 1200, state = 422, is_hint = 61 '=', same_screen = 0}, xcrossing = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, root = 177, subwindow = 50828, time = 2355767117, x = 65536, y = 1, x_root = 1600, y_root = 1200, mode = 422, detail = 317, same_screen = 0, focus = 0, state = 0}, xfocus = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, mode = 177, detail = 0}, xexpose = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, x = 177, y = 0, width = 50828, height = 0, count = -1939200179}, xgraphicsexpose = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, drawable = 177, x = 177, y = 0, width = 50828, height = 0, count = -1939200179, major_code = 0, minor_code = 65536}, xnoexpose = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, drawable = 177, major_code = 177, minor_code = 0}, xvisibility = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, state = 177}, xcreatewindow = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, parent = 177, window = 177, x = 50828, y = 0, width = -1939200179, height = 0, border_width = 65536, override_redirect = 1}, xdestroywindow = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177}, xunmap = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, from_configure = 50828}, xmap = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, override_redirect = 50828}, xmaprequest = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, parent = 177, window = 177}, xreparent = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, parent = 50828, x = -1939200179, y = 0, override_redirect = 65536}, xconfigure = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, x = 50828, y = 0, width = -1939200179, height = 0, border_width = 65536, above = 5153960756800, override_redirect = 422}, xgravity = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, x = 50828, y = 0}, xresizerequest = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, width = 177, height = 0}, xconfigurerequest = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, parent = 177, window = 177, x = 50828, y = 0, width = -1939200179, height = 0, border_width = 65536, above = 5153960756800, detail = 422, value_mask = 0}, xcirculate = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, event = 177, window = 177, place = 50828}, xcirculaterequest = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, parent = 177, window = 177, place = 50828}, xproperty = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, atom = 177, time = 50828, state = -1939200179}, xselectionclear = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, selection = 177, time = 50828}, xselectionrequest = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, owner = 177, requestor = 177, selection = 50828, target = 2355767117, property = 4295032832, time = 5153960756800}, xselection = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, requestor = 177, selection = 177, target = 50828, property = 2355767117, time = 4295032832}, xcolormap = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, colormap = 177, new = 50828, state = 0}, xclient = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, message_type = 177, format = 50828, data = {b = "M'j\214\000\000\000\000\000\000\001\000\001\000\000\000@\006\000", s = {10061, -29590, 0, 0, 0, 1, 1, 0, 1600, 0}, l = {2355767117, 4295032832, 5153960756800, 1361504633254, 0}}}, xmapping = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, request = 177, first_keycode = 0, count = 50828}, xerror = {type = 101, display = 0x415881, resourceid = 0, serial = 139831239525616, error_code = 177 '\261', request_code = 0 '\000', minor_code = 0 '\000'}, xkeymap = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, window = 177, key_vector = "\261\000\000\000\000\000\000\000\214\306\000\000\000\000\000\000M'j\214\000\000\000\000\000\000\001\000\001\000\000"}, xgeneric = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, extension = 177, evtype = 0}, xcookie = {type = 101, serial = 4282497, send_event = 0, display = 0x7f2cff5c44f0, extension = 177, evtype = 0, cookie = 177, data = 0xc68c}, pad = {101, 4282497, 0, 139831239525616, 177, 177, 50828, 2355767117, 4295032832, 5153960756800, 1361504633254, 0 <repeats 13 times>}}
        xdisplay = 0x7f2cff5c44f0
#19 0x00007f2cfd3bf59e in gdk_event_dispatch (source=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at /build/buildd/gtk+2.0-2.24.4/gdk/x11/gdkevents-x11.c:2371
        display = 0x7f2cff5d1000
        event = <value optimized out>
#20 0x00007f2cfbc98bcd in g_main_dispatch (context=0x7f2cff5db2d0) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:2440
        dispatch = 0x7f2cfd3bf580 <gdk_event_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x7f2cff5db1e0, next = 0x0}
        need_destroy = <value optimized out>
        source = 0x7f2cff5db1e0
        current = 0x7f2cff6bcfc0
        i = <value optimized out>
#21 g_main_context_dispatch (context=0x7f2cff5db2d0) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3013
No locals.
#22 0x00007f2cfbc993a8 in g_main_context_iterate (context=0x7f2cff5db2d0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3091
        max_priority = 2147483647
        timeout = 3996
        some_ready = 1
        nfds = 6
        allocated_nfds = <value optimized out>
        fds = <value optimized out>
#23 0x00007f2cfbc999f2 in g_main_loop_run (loop=0x7f2cff685f20) at /build/buildd/glib2.0-2.28.6/./glib/gmain.c:3299
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#24 0x00007f2cfd95daf7 in IA__gtk_main () at /build/buildd/gtk+2.0-2.24.4/gtk/gtkmain.c:1257
        tmp_list = <value optimized out>
        functions = 0x0
        init = <value optimized out>
        loop = 0x7f2cff685f20
#25 0x00007f2cfe70a5dd in main (argc=1, argv=0x7fff320362a8) at main.c:357
        context = <value optimized out>
        application = 0x7f2cff618a30
        error = 0x0
        dbus_service = 0x7f2cff60bd90
        succeed = <value optimized out>
        i = <value optimized out>
        signums = {2, 3, 15, 6, 10}
        error_msg = <value optimized out>
        sm_client = 0x7f2cff5d68a0