#0  meta_window_move_frame (window=0x1c94d50, user_op=1, root_x_nw=0, root_y_nw=<optimized out>) at core/window.c:5121
        x = <error reading variable x (Cannot access memory at address 0x24)>
        y = <error reading variable y (Cannot access memory at address 0x28)>
        borders = {visible = {left = 0, right = 0, top = 0, bottom = 0}, invisible = {left = 0, right = 0, top = 0, bottom = 0}, total = {left = 0, right = 0, top = 0, bottom = 0}}
#1  0x000000000040a344 in ?? ()
No symbol table info available.
#2  0x00007f07c5c0ba28 in meta_plugin_manager_event_simple (plugin_mgr=0x17cae10, actor=0x1ce0fd0, event=8) at compositor/meta-plugin-manager.c:287
        plugin = 0x17c08a0
        klass = 0x17c0040
        l = 0x17b6f60
        retval = 1
        display = <optimized out>
#3  0x00007f07c5c1006f in start_simple_effect (self=0x1ce0fd0, event=<optimized out>) at compositor/meta-window-actor.c:1080
        priv = <optimized out>
        info = <optimized out>
        counter = 0x1ce13ac
        use_freeze_thaw = <optimized out>
        __PRETTY_FUNCTION__ = "start_simple_effect"
#4  0x00007f07c5c10f13 in meta_window_actor_show (self=0x1ce0fd0, effect=META_COMP_EFFECT_CREATE) at compositor/meta-window-actor.c:1392
        priv = 0x1ce1300
        info = <optimized out>
        event = <optimized out>
        __PRETTY_FUNCTION__ = "meta_window_actor_show"
#5  0x00007f07c5c42e6f in meta_window_show (window=0x1c94d50) at core/window.c:3156
        effect = <optimized out>
        takes_focus_on_map = 1
        toplevel_was_mapped = 0
        did_show = 1
        place_on_top_on_map = <optimized out>
        needs_stacking_adjustment = <optimized out>
        focus_window = <optimized out>
        toplevel_now_mapped = <optimized out>
        notify_demands_attention = 0
#6  implement_showing (window=0x1c94d50, showing=<optimized out>) at core/window.c:2234
No locals.
#7  0x00007f07c5c43c79 in idle_calc_showing (data=<optimized out>) at core/window.c:2334
        window = <optimized out>
        tmp = 0x1987b40
        copy = 0x1950140
        should_show = 0x0
        should_hide = 0x0
        unplaced = 0x1987b40
        displays = 0x0
        first_window = 0x1c94d50
        queue_index = <optimized out>
        __PRETTY_FUNCTION__ = "idle_calc_showing"
#8  0x00007f07c5c38318 in run_repaint_laters (data=<optimized out>) at core/util.c:794
        later = 0x1c878d0
        laters_copy = 0x1952130
        l = 0x1952130
        keep_timeline_running = <optimized out>
#9  0x00007f07c54db78c in _clutter_run_repaint_functions (flags=CLUTTER_REPAINT_FLAGS_PRE_PAINT) at ./clutter-main.c:3538
        res = 0
        context = 0x17ada80
        repaint_func = 0x1c849a0
        invoke_list = 0x0
        reinvoke_list = <optimized out>
        l = 0x1a76b40
#10 0x00007f07c54dd682 in master_clock_update_stages (stages=0x1a6e5b0, master_clock=0x1b5b770) at ./clutter-master-clock.c:369
        stages_updated = 0
        l = <optimized out>
        start = 2397104689
#11 clutter_clock_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ./clutter-master-clock.c:519
        clock_source = <optimized out>
        master_clock = 0x1b5b770
        stage_manager = <optimized out>
        stages_updated = 0
        stages = 0x1a6e5b0
#12 0x00007f07c3783c9a in g_main_dispatch (context=0x17c30c0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:2515
        dispatch = 0x7f07c54dd500 <clutter_clock_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x1cc7310, next = 0x0}
        need_destroy = <optimized out>
        source = 0x1cc7310
        current = 0x1a41a20
        i = <optimized out>
#13 g_main_context_dispatch (context=0x17c30c0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3052
No locals.
#14 0x00007f07c3784060 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x17c30c0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3123
        timeout = 0
        some_ready = 1
        fds = <optimized out>
        max_priority = 150
        nfds = 6
        allocated_nfds = <optimized out>
#15 g_main_context_iterate (context=0x17c30c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 1
#16 0x00007f07c378445a in g_main_loop_run (loop=0x17c1c70) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#17 0x00007f07c5c294b1 in meta_run () at core/main.c:555
        log_domains = {0x0, 0x7f07c5c7167a "mutter", 0x7f07c5c709db "Gtk", 0x7f07c5c709df "Gdk", 0x7f07c5c709e3 "GLib", 0x7f07c5c709e8 "Pango", 0x7f07c5c709ee "GLib-GObject", 0x7f07c5c709fb "GThread"}
        i = <optimized out>
#18 0x000000000040cd6d in gala_main ()
No symbol table info available.
#19 0x000000000040cda8 in main ()
No symbol table info available.