#0  0x00007fec8eec83a5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <optimized out>
        selftid = <optimized out>
#1  0x00007fec8eecbb0b in __GI_abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fec8fb8c000 <_Xevent_to_mask>, sa_sigaction = 0x7fec8fb8c000 <_Xevent_to_mask>}, sa_mask = {__val = {140653986851382, 140653986679712, 140654059758816, 0, 140653990429120, 18446744073709551615, 116, 4294967295, 0, 140654000259072, 140653990422528, 6849832, 0, 4194304, 140654000259072, 0}}, sa_flags = -1826271340, sa_restorer = 0x1}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00000000004376cd in meta_bug (format=<optimized out>) at core/util.c:389
        args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff4430fca0, reg_save_area = 0x7fff4430fbd0}}
        str = 0x1740240 ""
        out = 0x7fec8f22a800
        __PRETTY_FUNCTION__ = "meta_bug"
#3  0x0000000000424924 in x_error_handler (error=0x7fff4430fd20, xdisplay=0x156d980) at core/errors.c:247
        retval = <optimized out>
        buf = "BadWindow (invalid Window parameter)", '\000' <repeats 27 times>
        display = 0x1604800
#4  x_error_handler (xdisplay=0x156d980, error=0x7fff4430fd20) at core/errors.c:203
        retval = 0
        foreign = <optimized out>
#5  0x00007fec8fb2b01f in _XError (dpy=0x156d980, rep=<optimized out>) at ../../src/XlibInt.c:1583
        rtn_val = <optimized out>
        event = {type = 0, xany = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867}, xkey = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, root = 140653987161981, subwindow = 28, time = 22473680, x = 28, y = 0, x_root = 0, y_root = 0, state = 22994480, keycode = 0, same_screen = -1934634515}, xbutton = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, root = 140653987161981, subwindow = 28, time = 22473680, x = 28, y = 0, x_root = 0, y_root = 0, state = 22994480, button = 0, same_screen = -1934634515}, xmotion = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, root = 140653987161981, subwindow = 28, time = 22473680, x = 28, y = 0, x_root = 0, y_root = 0, state = 22994480, is_hint = 0 '\000', same_screen = -1934634515}, xcrossing = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, root = 140653987161981, subwindow = 28, time = 22473680, x = 28, y = 0, x_root = 0, y_root = 0, mode = 22994480, detail = 0, same_screen = -1934634515, focus = 32748, state = 32}, xfocus = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, mode = -1896814723, detail = 32748}, xexpose = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, x = -1896814723, y = 32748, width = 28, height = 0, count = 22473680}, xgraphicsexpose = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, drawable = 4867, x = -1896814723, y = 32748, width = 28, height = 0, count = 22473680, major_code = 0, minor_code = 28}, xnoexpose = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, drawable = 4867, major_code = -1896814723, minor_code = 32748}, xvisibility = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, state = -1896814723}, xcreatewindow = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, parent = 4867, window = 140653987161981, x = 28, y = 0, width = 22473680, height = 0, border_width = 28, override_redirect = 0}, xdestroywindow = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981}, xunmap = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, from_configure = 28}, xmap = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, override_redirect = 28}, xmaprequest = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, parent = 4867, window = 140653987161981}, xreparent = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, parent = 28, x = 22473680, y = 0, override_redirect = 28}, xconfigure = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, x = 28, y = 0, width = 22473680, height = 0, border_width = 28, above = 0, override_redirect = 22994480}, xgravity = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, x = 28, y = 0}, xresizerequest = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, width = -1896814723, height = 32748}, xconfigurerequest = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, parent = 4867, window = 140653987161981, x = 28, y = 0, width = 22473680, height = 0, border_width = 28, above = 0, detail = 22994480, value_mask = 140653949342189}, xcirculate = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, event = 4867, window = 140653987161981, place = 28}, xcirculaterequest = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, parent = 4867, window = 140653987161981, place = 28}, xproperty = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, atom = 140653987161981, time = 28, state = 22473680}, xselectionclear = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, selection = 140653987161981, time = 28}, xselectionrequest = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, owner = 4867, requestor = 140653987161981, selection = 28, target = 22473680, property = 28, time = 0}, xselection = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, requestor = 4867, selection = 140653987161981, target = 28, property = 22473680, time = 28}, xcolormap = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, colormap = 140653987161981, new = 28, state = 0}, xclient = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, message_type = 140653987161981, format = 28, data = {b = "\320\353V\001\000\000\000\000\034\000\000\000\000\000\000\000\000\000\000", s = {-5168, 342, 0, 0, 28, 0, 0, 0, 0, 0}, l = {22473680, 28, 0, 22994480, 140653949342189}}}, xmapping = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, request = -1896814723, first_keycode = 32748, count = 28}, xerror = {type = 0, display = 0x156d980, resourceid = 77594692, serial = 1310167, error_code = 3 '\003', request_code = 19 '\023', minor_code = 0 '\000'}, xkeymap = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, window = 4867, key_vector = "}\347\360\216\354\177\000\000\034\000\000\000\000\000\000\000\320\353V\001\000\000\000\000\034\000\000\000\000\000\000"}, xgeneric = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, extension = 4867, evtype = 0}, xcookie = {type = 0, serial = 22468992, send_event = 77594692, display = 0x13fdd7, extension = 4867, evtype = 0, cookie = 2398152573, data = 0x1c}, pad = {0, 22468992, 77594692, 1310167, 4867, 140653987161981, 28, 22473680, 28, 0, 22994480, 140653949342189, 32, 274900380648, 22477920, 22473744, 81064814731395100, 140734337449456, 6076814207655833189, 22473680, 0, 0, 22473704, 140653990429120}}
        async = <optimized out>
        next = <optimized out>
#6  0x00007fec8fb27dd1 in handle_error (dpy=0x156d980, err=0x15ede80, in_XReply=<optimized out>) at ../../src/xcb_io.c:212
        ext = <optimized out>
        ret_code = 0
#7  0x00007fec8fb27e15 in handle_response (dpy=0x156d980, response=0x15ede80, in_XReply=<optimized out>) at ../../src/xcb_io.c:324
        async = <optimized out>
        next = <optimized out>
#8  0x00007fec8fb2873d in _XReadEvents (dpy=0x156d980) at ../../src/xcb_io.c:425
        response = <optimized out>
        serial = 28298
#9  0x00007fec8fb26d3d in XWindowEvent (dpy=0x156d980, w=18874372, mask=4194304, event=0x7fff4430fee0) at ../../src/WinEvent.c:79
        prev = 0x1625fb0
        qelt = <optimized out>
        qe_serial = <optimized out>
#10 0x000000000041bf33 in meta_display_get_current_time_roundtrip (display=0x1604800) at core/display.c:1217
        property_event = {type = 0, xany = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040}, xkey = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, root = 1, subwindow = 24337472, time = 2, x = 0, y = 0, x_root = 1501, y_root = 0, state = 16, keycode = 0, same_screen = -1893547584}, xbutton = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, root = 1, subwindow = 24337472, time = 2, x = 0, y = 0, x_root = 1501, y_root = 0, state = 16, button = 0, same_screen = -1893547584}, xmotion = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, root = 1, subwindow = 24337472, time = 2, x = 0, y = 0, x_root = 1501, y_root = 0, state = 16, is_hint = 0 '\000', same_screen = -1893547584}, xcrossing = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, root = 1, subwindow = 24337472, time = 2, x = 0, y = 0, x_root = 1501, y_root = 0, mode = 16, detail = 0, same_screen = -1893547584, focus = 32748, state = 23766785}, xfocus = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, mode = 1, detail = 0}, xexpose = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, x = 1, y = 0, width = 24337472, height = 0, count = 2}, xgraphicsexpose = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, drawable = 23421040, x = 1, y = 0, width = 24337472, height = 0, count = 2, major_code = 0, minor_code = 0}, xnoexpose = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, drawable = 23421040, major_code = 1, minor_code = 0}, xvisibility = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, state = 1}, xcreatewindow = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, parent = 23421040, window = 1, x = 24337472, y = 0, width = 2, height = 0, border_width = 0, override_redirect = 0}, xdestroywindow = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1}, xunmap = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, from_configure = 24337472}, xmap = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, override_redirect = 24337472}, xmaprequest = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, parent = 23421040, window = 1}, xreparent = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, parent = 24337472, x = 2, y = 0, override_redirect = 0}, xconfigure = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, x = 24337472, y = 0, width = 2, height = 0, border_width = 0, above = 1501, override_redirect = 16}, xgravity = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, x = 24337472, y = 0}, xresizerequest = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, width = 1, height = 0}, xconfigurerequest = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, parent = 23421040, window = 1, x = 24337472, y = 0, width = 2, height = 0, border_width = 0, above = 1501, detail = 16, value_mask = 140653990429120}, xcirculate = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, event = 23421040, window = 1, place = 24337472}, xcirculaterequest = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, parent = 23421040, window = 1, place = 24337472}, xproperty = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, atom = 1, time = 24337472, state = 2}, xselectionclear = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, selection = 1, time = 24337472}, xselectionrequest = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, owner = 23421040, requestor = 1, selection = 24337472, target = 2, property = 0, time = 1501}, xselection = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, requestor = 23421040, selection = 1, target = 24337472, property = 2, time = 0}, xcolormap = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, colormap = 1, new = 24337472, state = 0}, xclient = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, message_type = 1, format = 24337472, data = {b = "\002", '\000' <repeats 15 times>"\335, \005\000", s = {2, 0, 0, 0, 0, 0, 0, 0, 1501, 0}, l = {2, 0, 1501, 16, 140653990429120}}}, xmapping = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, request = 1, first_keycode = 0, count = 24337472}, xerror = {type = 0, display = 0x7fec910d5e4a, resourceid = 140734337449744, serial = 23495456, error_code = 112 'p', request_code = 96 '`', minor_code = 101 'e'}, xkeymap = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, window = 23421040, key_vector = "\001\000\000\000\000\000\000\000@\\s\001\000\000\000\000\002", '\000' <repeats 14 times>}, xgeneric = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, extension = 23421040, evtype = 0}, xcookie = {type = 0, serial = 140654022581834, send_event = 1144061712, display = 0x1668320, extension = 23421040, evtype = 0, cookie = 1, data = 0x1735c40}, pad = {0, 140654022581834, 140734337449744, 23495456, 23421040, 1, 24337472, 2, 0, 1501, 16, 140653990429120, 23766785, 0, 22363488, 1, 0, 24337472, 0, 2, 22363496, 1501, 23766800, 22363488}}
        timestamp = <optimized out>
#11 0x0000000000443064 in implement_showing (window=0x15eef00, showing=<optimized out>) at core/window.c:1541
No locals.
#12 0x0000000000440cc5 in meta_window_focus (window=0x15eef00, timestamp=3426295) at core/window.c:4285
No locals.
#13 0x0000000000444a28 in focus_ancestor_or_mru_window (not_this_one=<optimized out>, timestamp=3426295, workspace=<optimized out>) at core/workspace.c:1062
        window = 0x15eef00
        desktop_window = <optimized out>
        tmp = 0x163b260
#14 0x000000000043ed06 in meta_window_free (window=0x1757800, timestamp=3426295) at core/window.c:1072
        tmp = <optimized out>
        __PRETTY_FUNCTION__ = "meta_window_free"
#15 0x000000000041ee01 in event_callback (event=0x7fff443105a0, data=0x1604800) at core/display.c:1992
        timestamp = 3426295
        window = <optimized out>
        property_for_window = <optimized out>
        display = 0x1604800
        frame_was_receiver = 0
        filter_out_event = 0
#16 0x00000000004611b4 in filter_func (xevent=0x5dd, event=0x5dd, data=0x6) at ui/ui.c:219
No locals.
#17 0x00007fec92370216 in gdk_event_apply_filters (filters=<optimized out>, event=<optimized out>, xevent=<optimized out>) at /build/buildd/gtk+2.0-2.24.5/gdk/x11/gdkevents-x11.c:356
        filter = <optimized out>
        tmp_list = 0x0
        result = <optimized out>
#18 gdk_event_translate (display=0x157b020, event=0x15a7040, xevent=0x7fff443105a0, return_exposes=0) at /build/buildd/gtk+2.0-2.24.5/gdk/x11/gdkevents-x11.c:927
        result = <optimized out>
        window = 0x0
        window_private = 0x0
        filter_window = <optimized out>
        window_impl = 0x0
        return_val = 0
        screen = 0x0
        screen_x11 = 0x0
        toplevel = 0x0
        display_x11 = 0x157b020
        xwindow = <optimized out>
        filter_xwindow = <optimized out>
#19 0x00007fec92371fc6 in _gdk_events_queue (display=0x157b020) at /build/buildd/gtk+2.0-2.24.5/gdk/x11/gdkevents-x11.c:2310
        node = 0x1636840
        event = 0x15a7040
        xevent = {type = 18, xany = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346}, xkey = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, root = 77594692, subwindow = 0, time = 0, x = 317, y = 0, x_root = 0, y_root = 0, state = 0, keycode = 0, same_screen = 0}, xbutton = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, root = 77594692, subwindow = 0, time = 0, x = 317, y = 0, x_root = 0, y_root = 0, state = 0, button = 0, same_screen = 0}, xmotion = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, root = 77594692, subwindow = 0, time = 0, x = 317, y = 0, x_root = 0, y_root = 0, state = 0, is_hint = 0 '\000', same_screen = 0}, xcrossing = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, root = 77594692, subwindow = 0, time = 0, x = 317, y = 0, x_root = 0, y_root = 0, mode = 0, detail = 0, same_screen = 0, focus = 0, state = 0}, xfocus = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, mode = 77594692, detail = 0}, xexpose = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, x = 77594692, y = 0, width = 0, height = 0, count = 0}, xgraphicsexpose = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, drawable = 346, x = 77594692, y = 0, width = 0, height = 0, count = 0, major_code = 0, minor_code = 317}, xnoexpose = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, drawable = 346, major_code = 77594692, minor_code = 0}, xvisibility = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, state = 77594692}, xcreatewindow = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, parent = 346, window = 77594692, x = 0, y = 0, width = 0, height = 0, border_width = 317, override_redirect = 0}, xdestroywindow = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692}, xunmap = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, from_configure = 0}, xmap = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, override_redirect = 0}, xmaprequest = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, parent = 346, window = 77594692}, xreparent = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, parent = 0, x = 0, y = 0, override_redirect = 317}, xconfigure = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, x = 0, y = 0, width = 0, height = 0, border_width = 317, above = 0, override_redirect = 0}, xgravity = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, x = 0, y = 0}, xresizerequest = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, width = 77594692, height = 0}, xconfigurerequest = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, parent = 346, window = 77594692, x = 0, y = 0, width = 0, height = 0, border_width = 317, above = 0, detail = 0, value_mask = 0}, xcirculate = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, event = 346, window = 77594692, place = 0}, xcirculaterequest = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, parent = 346, window = 77594692, place = 0}, xproperty = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, atom = 77594692, time = 0, state = 0}, xselectionclear = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, selection = 77594692, time = 0}, xselectionrequest = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, owner = 346, requestor = 77594692, selection = 0, target = 0, property = 317, time = 0}, xselection = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, requestor = 346, selection = 77594692, target = 0, property = 0, time = 317}, xcolormap = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, colormap = 77594692, new = 0, state = 0}, xclient = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, message_type = 77594692, format = 0, data = {b = "\000\000\000\000\000\000\000\000=\001\000\000\000\000\000\000\000\000\000", s = {0, 0, 0, 0, 317, 0, 0, 0, 0, 0}, l = {0, 317, 0, 0, 0}}}, xmapping = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, request = 77594692, first_keycode = 0, count = 0}, xerror = {type = 18, display = 0x13fdaf, resourceid = 0, serial = 22468992, error_code = 90 'Z', request_code = 1 '\001', minor_code = 0 '\000'}, xkeymap = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, window = 346, key_vector = "D\000\240\004", '\000' <repeats 20 times>, "=\001\000\000\000\000\000"}, xgeneric = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, extension = 346, evtype = 0}, xcookie = {type = 18, serial = 1310127, send_event = 0, display = 0x156d980, extension = 346, evtype = 0, cookie = 77594692, data = 0x0}, pad = {18, 1310127, 0, 22468992, 346, 77594692, 0, 0, 317, 0 <repeats 15 times>}}
        xdisplay = 0x156d980
#20 0x00007fec9237206e in gdk_event_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+2.0-2.24.5/gdk/x11/gdkevents-x11.c:2371
        display = 0x157b020
        event = <optimized out>
#21 0x00007fec910b95bd in g_main_context_prepare (context=0x0, priority=0x1553d60) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:2762
        result = 6
        prepare = <optimized out>
        source_timeout = 0
        i = <optimized out>
        n_ready = <optimized out>
        current_priority = <optimized out>
        source = 0x1586f00
#22 0x00007fec910c8070 in g_pattern_ph_match (wildcard_reached_p=<synthetic pointer>, match_string=<optimized out>, match_pattern=0x0) at /build/buildd/glib2.0-2.29.16/./glib/gpattern.c:134
        next_wildcard_reached = 0
        pattern = 0x7fff44310b70 ""
        string = 0x0
        ch = 0 '\000'
#23 g_pattern_ph_match (wildcard_reached_p=<synthetic pointer>, match_string=0x0, match_pattern=0x0) at /build/buildd/glib2.0-2.29.16/./glib/gpattern.c:135
        next_wildcard_reached = <optimized out>
        pattern = 0x0
        string = <optimized out>
        ch = <optimized out>
#24 g_pattern_ph_match (wildcard_reached_p=<synthetic pointer>, match_string=0x144310b70 <Address 0x144310b70 out of bounds>, match_pattern=0x1 <Address 0x1 out of bounds>) at /build/buildd/glib2.0-2.29.16/./glib/gpattern.c:135
        next_wildcard_reached = <optimized out>
        pattern = 0x0
        string = 0x0
        ch = <optimized out>
#25 g_pattern_ph_match (wildcard_reached_p=<synthetic pointer>, match_string=0x1 <Address 0x1 out of bounds>, match_pattern=0x0) at /build/buildd/glib2.0-2.29.16/./glib/gpattern.c:135
        next_wildcard_reached = <optimized out>
        pattern = 0x1 <Address 0x1 out of bounds>
        string = 0x144310b70 <Address 0x144310b70 out of bounds>
        ch = <optimized out>
#26 g_pattern_ph_match (match_pattern=<optimized out>, match_string=<optimized out>, wildcard_reached_p=0x7fec91369808) at /build/buildd/glib2.0-2.29.16/./glib/gpattern.c:135
        next_wildcard_reached = <optimized out>
        pattern = 0x0
        string = 0x1 <Address 0x1 out of bounds>
        ch = <optimized out>
#27 0x0000000000000000 in ?? ()
No symbol table info available.