#0  0x00007f312856fe37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 2442
        selftid = 2442
#1  0x00007f3128571528 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7f312a4ed940 <__FUNCTION__.78638>, sa_sigaction = 0x7f312a4ed940 <__FUNCTION__.78638>}, sa_mask = {__val = {110154448, 114, 139849160861015, 140733193388037, 0, 72057594037927936, 139849106717992, 82134784, 114, 139849116066848, 139849160889653, 0, 0, 139849110615960, 4294967295, 0}}, sa_flags = 0, sa_restorer = 0x4e54700}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f3128b8bd95 in g_assertion_message (domain=domain@entry=0x7f312a4e91a0 "mutter", file=file@entry=0x7f312a4eb882 "core/window.c", line=line@entry=1323, func=func@entry=0x7f312a4ed940 <__FUNCTION__.78638> "meta_window_unmanage", message=message@entry=0x62853c0 "assertion failed: (window->display->focus_window != window)") at /build/buildd/glib2.0-2.43.3/./glib/gtestutils.c:2356
        lstr = "1323\000\177\000\000\000\231\343OW\331\361(pVl\005\000\000\000\000\350\310N*1\177\000"
        s = 0x4e54700 ""
#3  0x00007f3128b8be2a in g_assertion_message_expr (domain=domain@entry=0x7f312a4e91a0 "mutter", file=file@entry=0x7f312a4eb882 "core/window.c", line=line@entry=1323, func=func@entry=0x7f312a4ed940 <__FUNCTION__.78638> "meta_window_unmanage", expr=expr@entry=0x7f312a4ec8e8 "window->display->focus_window != window") at /build/buildd/glib2.0-2.43.3/./glib/gtestutils.c:2371
        s = 0x62853c0 "assertion failed: (window->display->focus_window != window)"
#4  0x00007f312a4a098a in meta_window_unmanage (window=0x5a47a70, timestamp=43937965) at core/window.c:1323
        tmp = <optimized out>
        __FUNCTION__ = "meta_window_unmanage"
#5  0x00007f312a4bdf4e in handle_other_xevent (display=0x2931800, event=0x29e70ad) at x11/events.c:1306
        timestamp = 43937965
        modified = 0
        frame_was_receiver = 0
        bypass_gtk = 0
#6  0x00007f312a4becb7 in meta_display_handle_xevent (event=0x7fff85985030, display=0x2931800) at x11/events.c:1733
        modified = 39848576
        bypass_compositor = 0
        bypass_gtk = 0
#7  xevent_filter (xevent=0x7fff85985030, event=<optimized out>, data=0x2931800) at x11/events.c:1772
        display = 0x2931800
#8  0x00007f31255ec991 in gdk_event_apply_filters (xevent=xevent@entry=0x7fff85985030, event=event@entry=0x690d2d0, window=window@entry=0x0) at /build/buildd/gtk+3.0-3.14.8/./gdk/x11/gdkeventsource.c:81
        filter = 0x26b6610
        node = <optimized out>
        tmp_list = 0x27c96a0
        result = <optimized out>
#9  0x00007f31255ecc51 in gdk_event_source_translate_event (xevent=0x7fff85985030, event_source=0x26a0160) at /build/buildd/gtk+3.0-3.14.8/./gdk/x11/gdkeventsource.c:195
        dpy = 0x268d4d0
        event = 0x690d2d0
        result = GDK_FILTER_CONTINUE
        event_translator = <optimized out>
#10 _gdk_x11_display_queue_events (display=0x269e040) at /build/buildd/gtk+3.0-3.14.8/./gdk/x11/gdkeventsource.c:338
        xevent = {type = 18, xany = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223}, xkey = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, root = 39848576, subwindow = 0, time = 3932160, x = 0, y = 18285098, x_root = 8413357, y_root = 0, state = 0, keycode = 0, same_screen = 0}, xbutton = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, root = 39848576, subwindow = 0, time = 3932160, x = 0, y = 18285098, x_root = 8413357, y_root = 0, state = 0, button = 0, same_screen = 0}, xmotion = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, root = 39848576, subwindow = 0, time = 3932160, x = 0, y = 18285098, x_root = 8413357, y_root = 0, state = 0, is_hint = 0 '\000', same_screen = 0}, xcrossing = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, root = 39848576, subwindow = 0, time = 3932160, x = 0, y = 18285098, x_root = 8413357, y_root = 0, mode = 0, detail = 0, same_screen = 0, focus = 0, state = 834}, xfocus = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, mode = 39848576, detail = 0}, xexpose = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, x = 39848576, y = 0, width = 0, height = 0, count = 3932160}, xgraphicsexpose = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, drawable = 8424223, x = 39848576, y = 0, width = 0, height = 0, count = 3932160, major_code = 0, minor_code = 0}, xnoexpose = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, drawable = 8424223, major_code = 39848576, minor_code = 0}, xvisibility = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, state = 39848576}, xcreatewindow = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, parent = 8424223, window = 39848576, x = 0, y = 0, width = 3932160, height = 0, border_width = 0, override_redirect = 18285098}, xdestroywindow = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576}, xunmap = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, from_configure = 0}, xmap = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, override_redirect = 0}, xmaprequest = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, parent = 8424223, window = 39848576}, xreparent = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, parent = 0, x = 3932160, y = 0, override_redirect = 0}, xconfigure = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, x = 0, y = 0, width = 3932160, height = 0, border_width = 0, above = 8413357, override_redirect = 0}, xgravity = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, x = 0, y = 0}, xresizerequest = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, width = 39848576, height = 0}, xconfigurerequest = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, parent = 8424223, window = 39848576, x = 0, y = 0, width = 3932160, height = 0, border_width = 0, above = 8413357, detail = 0, value_mask = 0}, xcirculate = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, event = 8424223, window = 39848576, place = 0}, xcirculaterequest = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, parent = 8424223, window = 39848576, place = 0}, xproperty = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, atom = 39848576, time = 0, state = 3932160}, xselectionclear = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, selection = 39848576, time = 0}, xselectionrequest = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, owner = 8424223, requestor = 39848576, selection = 0, target = 3932160, property = 78533897914155008, time = 8413357}, xselection = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, requestor = 8424223, selection = 39848576, target = 0, property = 3932160, time = 78533897914155008}, xcolormap = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, colormap = 39848576, new = 0, state = 0}, xclient = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, message_type = 39848576, format = 0, data = {b = "\000\000<\000\000\000\000\000\000\000\000\000*\002\027\001\255`\200", s = {0, 60, 0, 0, 0, 0, 554, 279, 24749, 128}, l = {3932160, 78533897914155008, 8413357, 0, 0}}}, xmapping = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, request = 39848576, first_keycode = 0, count = 0}, xerror = {type = 18, display = 0xfbb16, resourceid = 0, serial = 40424656, error_code = 31 '\037', request_code = 139 '\213', minor_code = 128 '\200'}, xkeymap = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, window = 8424223, key_vector = "\200\n`\002", '\000' <repeats 14 times>, "<\000\000\000\000\000\000\000\000\000*\002\027\001"}, xgeneric = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, extension = 8424223, evtype = 0}, xcookie = {type = 18, serial = 1030934, send_event = 0, display = 0x268d4d0, extension = 8424223, evtype = 0, cookie = 39848576, data = 0x0}, pad = {18, 1030934, 0, 40424656, 8424223, 39848576, 0, 3932160, 78533897914155008, 8413357, 0, 0, 834, 0 <repeats 11 times>}}
        xdisplay = 0x268d4d0
        event_source = 0x26a0160
        display_x11 = 0x269e040
#11 0x00007f31255c3749 in gdk_display_get_event (display=display@entry=0x269e040) at /build/buildd/gtk+3.0-3.14.8/./gdk/gdkdisplay.c:336
        __FUNCTION__ = "gdk_display_get_event"
#12 0x00007f31255eca12 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.14.8/./gdk/x11/gdkeventsource.c:360
        display = 0x269e040
        event = <optimized out>
#13 0x00007f3128b65ecd in g_main_dispatch (context=0x24e9ea0) at /build/buildd/glib2.0-2.43.3/./glib/gmain.c:3122
        dispatch = 0x7f31255eca00 <gdk_event_source_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = <optimized out>
        need_destroy = <optimized out>
        source = 0x26a0160
        current = 0x25ed240
        i = 0
#14 g_main_context_dispatch (context=context@entry=0x24e9ea0) at /build/buildd/glib2.0-2.43.3/./glib/gmain.c:3737
No locals.
#15 0x00007f3128b661b0 in g_main_context_iterate (context=0x24e9ea0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.43.3/./glib/gmain.c:3808
        max_priority = 2147483647
        timeout = 145499
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 11
        fds = 0x3c0f930
#16 0x00007f3128b664d2 in g_main_loop_run (loop=0x266a950) at /build/buildd/glib2.0-2.43.3/./glib/gmain.c:4002
        __FUNCTION__ = "g_main_loop_run"
#17 0x00007f312a48e2a8 in meta_run () at core/main.c:473
No locals.
#18 0x000000000040206d in main (argc=1, argv=0x7fff859853e8) at main.c:463
        ctx = <optimized out>
        error = 0x0
        ecode = <optimized out>
        sender = 0x7f310400ba80