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GNU gdb (GDB; openSUSE Leap 15.0) 8.2
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from /usr/bin/xfwm4...Reading symbols from /usr/lib/debug/usr/bin/xfwm4-20190509T082824.3dfe0130-20.xfce.1.x86_64.debug...done.
done.
[New LWP 6332]
[New LWP 6333]
[New LWP 6334]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `xfwm4 --display :0.0 --sm-client-id 28dbe116f-f05f-44b5-a978-da27009218de'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  myDisplayGetCurrentTime (display=display@entry=0xcacacacacacacaca) at display.c:842
842	    return display->current_time;
[Current thread is 1 (Thread 0x7f167f9f3f00 (LWP 6332))]
(gdb) bt
#0  0x00005566da655f25 in myDisplayGetCurrentTime (display=display@entry=0xcacacacacacacaca) at display.c:842
#1  0x00005566da64871b in clientClose (c=0x5566dcff4560) at client.c:2639
#2  0x00005566da64b277 in clientButtonPress (c=c@entry=0x5566dcff4560, w=w@entry=12138982, event=event@entry=0x5566dd0bff00) at client.c:3914
#3  0x00005566da659198 in handleButtonPress (event=0x5566dd0bff00, display_info=0x5566dcb695f0) at events.c:974
#4  0x00005566da659198 in handleEvent (event=<optimized out>, display_info=0x5566dcb695f0) at events.c:2231
#5  0x00005566da659198 in xfwm4_event_filter (event=0x5566dd0bff00, data=0x5566dcb695f0) at events.c:2342
#6  0x00005566da656649 in eventXfwmFilter (gdk_xevent=<optimized out>, gevent=<optimized out>, data=<optimized out>) at event_filter.c:177
#7  0x00007f167d926a0f in gdk_event_apply_filters (xevent=xevent@entry=0x7ffd310c6360, event=event@entry=0x7f166c008e80, window=window@entry=0x0) at gdkeventsource.c:79
#8  0x00007f167d926e02 in gdk_event_source_translate_event (xevent=0x7ffd310c6360, event_source=0x5566dc8a7bc0) at gdkeventsource.c:198
#9  0x00007f167d926e02 in _gdk_x11_display_queue_events (display=0x5566dc8830e0 [GdkX11Display]) at gdkeventsource.c:341
#10 0x00007f167d8f0890 in gdk_display_get_event (display=display@entry=0x5566dc8830e0 [GdkX11Display]) at gdkdisplay.c:438
#11 0x00007f167d926aa2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at gdkeventsource.c:363
#12 0x00007f167c5bbe07 in g_main_dispatch (context=0x5566dc8a7c40) at gmain.c:3142
#13 0x00007f167c5bbe07 in g_main_context_dispatch (context=context@entry=0x5566dc8a7c40) at gmain.c:3795
#14 0x00007f167c5bc1b0 in g_main_context_iterate (context=0x5566dc8a7c40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3868
#15 0x00007f167c5bc4c2 in g_main_loop_run (loop=0x5566dcf4f6e0) at gmain.c:4064
#16 0x00007f167ddf6515 in gtk_main () at gtkmain.c:1323
#17 0x00005566da6459c9 in main (argc=<optimized out>, argv=<optimized out>) at main.c:773
(gdb) bt full
#0  0x00005566da655f25 in myDisplayGetCurrentTime (display=display@entry=0xcacacacacacacaca) at display.c:842
        __func__ = "myDisplayGetCurrentTime"
#1  0x00005566da64871b in clientClose (c=0x5566dcff4560) at client.c:2639
        screen_info = 0x5566dd0cbdc0
        display_info = 0xcacacacacacacaca
        timestamp = <optimized out>
#2  0x00005566da64b277 in clientButtonPress (c=c@entry=0x5566dcff4560, w=w@entry=12138982, event=event@entry=0x5566dd0bff00) at client.c:3914
        screen_info = <optimized out>
        display_info = 0x5566dcb695f0
        passdata = {b = 5, c = 0x5566dcff4560}
        b = 5
        g1 = <optimized out>
        __func__ = "clientButtonPress"
#3  0x00005566da659198 in handleButtonPress (event=0x5566dd0bff00, display_info=0x5566dcb695f0) at events.c:974
        screen_info = 0x5566dcb6a970
        c = 0x5566dcff4560
        state = 0
        win = 12138982
        replay = 0
        status = EVENT_FILTER_STOP
        display_info = 0x5566dcb695f0
#4  0x00005566da659198 in handleEvent (event=<optimized out>, display_info=0x5566dcb695f0) at events.c:2231
        status = EVENT_FILTER_STOP
        display_info = 0x5566dcb695f0
#5  0x00005566da659198 in xfwm4_event_filter (event=0x5566dd0bff00, data=0x5566dcb695f0) at events.c:2342
        display_info = 0x5566dcb695f0
#6  0x00005566da656649 in eventXfwmFilter (gdk_xevent=<optimized out>, gevent=<optimized out>, data=<optimized out>) at event_filter.c:177
        filterelt_next = 0x5566dc8bf720
        event = 0x5566dd0bff00
        loop = EVENT_FILTER_REMOVE
        setup = <optimized out>
        filterelt = 0x5566dcf39850
        __func__ = "eventXfwmFilter"
#7  0x00007f167d926a0f in gdk_event_apply_filters (xevent=xevent@entry=0x7ffd310c6360, event=event@entry=0x7f166c008e80, window=window@entry=0x0) at gdkeventsource.c:79
        filter = 0x5566dcf36030
        node = <optimized out>
        tmp_list = 0x5566dc9d1620 = {0x5566dcf36030}
        result = <optimized out>
#8  0x00007f167d926e02 in gdk_event_source_translate_event (xevent=0x7ffd310c6360, event_source=0x5566dc8a7bc0) at gdkeventsource.c:198
        dpy = 0x5566dc874520
        event = 0x7f166c008e80
        result = GDK_FILTER_CONTINUE
        event_translator = 0x0
        xevent = 
            {type = 35, xany = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315}, xkey = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, keycode = 4, same_screen = 3}, xbutton = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, button = 4, same_screen = 3}, xmotion = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, is_hint = 4 '\004', same_screen = 3}, xcrossing = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, mode = 0, detail = 4, same_screen = 3, focus = 0, state = 0}, xfocus = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, mode = 28631, detail = 0}, xexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, x = 28631, y = 0, width = -587314656, height = 21862, count = 234}, xgraphicsexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, drawable = 17179869315, x = 28631, y = 0, width = -587314656, height = 21862, count = 234, major_code = 0, minor_code = 24930822}, xnoexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, drawable = 17179869315, major_code = 28631, minor_code = 0}, xvisibility = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, state = 28631}, xcreatewindow = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, override_redirect = 0}, xdestroywindow = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631}, xunmap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, from_configure = -587314656}, xmap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, override_redirect = -587314656}, xmaprequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631}, xreparent = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, parent = 93900282677792, x = 234, y = 0, override_redirect = 24930822}, xconfigure = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, above = 65866561889501185, override_redirect = 0}, xgravity = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, x = -587314656, y = 21862}, xresizerequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, width = 28631, height = 0}, xconfigurerequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, above = 65866561889501185, detail = 0, value_mask = 3}, xcirculate = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, place = -587314656}, xcirculaterequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, place = -587314656}, xproperty = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, atom = 28631, time = 93900282677792, state = 234}, xselectionclear = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, selection = 28631, time = 93900282677792}, xselectionrequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, owner = 17179869315, requestor = 28631, selection = 93900282677792, target = 234, property = 24930822, time = 65866561889501185}, xselection = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, requestor = 17179869315, selection = 28631, target = 93900282677792, property = 234, time = 24930822}, xcolormap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, colormap = 28631, new = -587314656, state = 21862}, xclient = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, message_type = 28631, format = -587314656, data = {b = "\352\000\000\000\000\000\000\000\006j|\001\000\000\000\000\001\000\000", s = {234, 0, 0, 0, 27142, 380, 0, 0, 1, 0}, l = {234, 24930822, 65866561889501185, 17179869184, 3}}}, xmapping = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, request = 28631, first_keycode = 0, count = -587314656}, xerror = {type = 35, display = 0x1e8709a, resourceid = 0, serial = 93900274877728, error_code = 131 '\203', request_code = 0 '\000', minor_code = 0 '\000'}, xkeymap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, key_vector = "\327o\000\000\000\000\000\000 J\376\334fU\000\000\352\000\000\000\000\000\000\000\006j|\001\000\000\000"}, xgeneric = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, extension = 131, evtype = 4}, xcookie = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, extension = 131, evtype = 4, cookie = 28631, data = 0x5566dcfe4a20}, pad = {35, 32010394, 0, 93900274877728, 17179869315, 28631, 93900282677792, 234, 24930822, 65866561889501185, 17179869184, 3, 0, 93900281976128, 139734536653944, 192, 32, 93900281976912, 0, 0, 33, 93900281976128, 139734536653944, 256}}
        xdisplay = 0x5566dc874520
        event_source = 0x5566dc8a7bc0
        display_x11 = 0x5566dc8830e0 [GdkX11Display]
#9  0x00007f167d926e02 in _gdk_x11_display_queue_events (display=0x5566dc8830e0 [GdkX11Display]) at gdkeventsource.c:341
        xevent = 
            {type = 35, xany = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315}, xkey = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, keycode = 4, same_screen = 3}, xbutton = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, button = 4, same_screen = 3}, xmotion = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, state = 0, is_hint = 4 '\004', same_screen = 3}, xcrossing = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, root = 28631, subwindow = 93900282677792, time = 234, x = 24930822, y = 0, x_root = 1, y_root = 15335754, mode = 0, detail = 4, same_screen = 3, focus = 0, state = 0}, xfocus = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, mode = 28631, detail = 0}, xexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, x = 28631, y = 0, width = -587314656, height = 21862, count = 234}, xgraphicsexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, drawable = 17179869315, x = 28631, y = 0, width = -587314656, height = 21862, count = 234, major_code = 0, minor_code = 24930822}, xnoexpose = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, drawable = 17179869315, major_code = 28631, minor_code = 0}, xvisibility = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, state = 28631}, xcreatewindow = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, override_redirect = 0}, xdestroywindow = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631}, xunmap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, from_configure = -587314656}, xmap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, override_redirect = -587314656}, xmaprequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631}, xreparent = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, parent = 93900282677792, x = 234, y = 0, override_redirect = 24930822}, xconfigure = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, above = 65866561889501185, override_redirect = 0}, xgravity = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, x = -587314656, y = 21862}, xresizerequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, width = 28631, height = 0}, xconfigurerequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, x = -587314656, y = 21862, width = 234, height = 0, border_width = 24930822, above = 65866561889501185, detail = 0, value_mask = 3}, xcirculate = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, event = 17179869315, window = 28631, place = -587314656}, xcirculaterequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, parent = 17179869315, window = 28631, place = -587314656}, xproperty = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, atom = 28631, time = 93900282677792, state = 234}, xselectionclear = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, selection = 28631, time = 93900282677792}, xselectionrequest = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, owner = 17179869315, requestor = 28631, selection = 93900282677792, target = 234, property = 24930822, time = 65866561889501185}, xselection = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, requestor = 17179869315, selection = 28631, target = 93900282677792, property = 234, time = 24930822}, xcolormap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, colormap = 28631, new = -587314656, state = 21862}, xclient = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, message_type = 28631, format = -587314656, data = {b = "\352\000\000\000\000\000\000\000\006j|\001\000\000\000\000\001\000\000", s = {234, 0, 0, 0, 27142, 380, 0, 0, 1, 0}, l = {234, 24930822, 65866561889501185, 17179869184, 3}}}, xmapping = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, request = 28631, first_keycode = 0, count = -587314656}, xerror = {type = 35, display = 0x1e8709a, resourceid = 0, serial = 93900274877728, error_code = 131 '\203', request_code = 0 '\000', minor_code = 0 '\000'}, xkeymap = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, window = 17179869315, key_vector = "\327o\000\000\000\000\000\000 J\376\334fU\000\000\352\000\000\000\000\000\000\000\006j|\001\000\000\000"}, xgeneric = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, extension = 131, evtype = 4}, xcookie = {type = 35, serial = 32010394, send_event = 0, display = 0x5566dc874520, extension = 131, evtype = 4, cookie = 28631, data = 0x5566dcfe4a20}, pad = {35, 32010394, 0, 93900274877728, 17179869315, 28631, 93900282677792, 234, 24930822, 65866561889501185, 17179869184, 3, 0, 93900281976128, 139734536653944, 192, 32, 93900281976912, 0, 0, 33, 93900281976128, 139734536653944, 256}}
        xdisplay = 0x5566dc874520
        event_source = 0x5566dc8a7bc0
        display_x11 = 0x5566dc8830e0 [GdkX11Display]
#10 0x00007f167d8f0890 in gdk_display_get_event (display=display@entry=0x5566dc8830e0 [GdkX11Display]) at gdkdisplay.c:438
        __func__ = "gdk_display_get_event"
#11 0x00007f167d926aa2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at gdkeventsource.c:363
        display = 0x5566dc8830e0 [GdkX11Display]
        event = <optimized out>
#12 0x00007f167c5bbe07 in g_main_dispatch (context=0x5566dc8a7c40) at gmain.c:3142
        dispatch = 0x7f167d926a90 <gdk_event_source_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x0
        cb_data = 0x0
        need_destroy = <optimized out>
        source = 0x5566dc8a7bc0
        current = 0x5566dc8a0c00
        i = 0
#13 0x00007f167c5bbe07 in g_main_context_dispatch (context=context@entry=0x5566dc8a7c40) at gmain.c:3795
#14 0x00007f167c5bc1b0 in g_main_context_iterate (context=0x5566dc8a7c40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3868
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 4
        fds = 0x5566dcf00790
#15 0x00007f167c5bc4c2 in g_main_loop_run (loop=0x5566dcf4f6e0) at gmain.c:4064
        __func__ = "g_main_loop_run"
#16 0x00007f167ddf6515 in gtk_main () at gtkmain.c:1323
        loop = 0x5566dcf4f6e0
#17 0x00005566da6459c9 in main (argc=<optimized out>, argv=<optimized out>) at main.c:773
        version = 0
        replace_wm = 0
        context = <optimized out>
        error = 0x0
        option_entries = 
            {{long_name = 0x5566da681189 "daemon", short_name = 0 '\000', flags = 8, arg = G_OPTION_ARG_CALLBACK, arg_data = 0x5566da662880 <daemon_callback>, description = 0x5566da680d78 "Fork to the background (not supported)", arg_description = 0x0}, {long_name = 0x5566da681190 "compositor", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_CALLBACK, arg_data = 0x5566da662de0 <compositor_callback>, description = 0x5566da68119b "Set the compositor mode", arg_description = 0x5566da6811b3 "on|off|auto"}, {long_name = 0x5566da6811bf "vblank", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_CALLBACK, arg_data = 0x5566da662d00 <vblank_callback>, description = 0x5566da6811c6 "Set the vblank mode", arg_description = 0x5566da6811da "off|glx"}, {long_name = 0x5566da6811e2 "replace", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7ffd310c65f4, description = 0x5566da680da0 "Replace the existing window manager", arg_description = 0x0}, {long_name = 0x5566da6811ea "version", short_name = 86 'V', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7ffd310c65f0, description = 0x5566da680dc8 "Print version information and exit", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
(gdb) f 1
#1  0x00005566da64871b in clientClose (c=0x5566dcff4560) at client.c:2639
2639	    timestamp = myDisplayGetCurrentTime (display_info);
(gdb) p *screen_info
$1 = {display_info = 0xcacacacacacacaca, windows_stack = 0x541 = {<error reading variable>
(gdb) quit
           PID: 6332 (xfwm4)
           UID: 1000 (olaf)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: Fri 2019-05-10 22:59:00 CEST (29min ago)
  Command Line: xfwm4 --display :0.0 --sm-client-id 28dbe116f-f05f-44b5-a978-da27009218de
    Executable: /usr/bin/xfwm4
 Control Group: /user.slice/user-1000.slice/session-1.scope
          Unit: session-1.scope
         Slice: user-1000.slice
       Session: 1
     Owner UID: 1000 (olaf)
       Boot ID: fa4e5b12f9a844dc941ffd566dd66381
    Machine ID: ca6bb37d865159a93f29a1405937ca0e
      Hostname: latitude
       Storage: /var/lib/systemd/coredump/core.xfwm4.1000.fa4e5b12f9a844dc941ffd566dd66381.6332.1557521940000000.lz4
       Message: Process 6332 (xfwm4) of user 1000 dumped core.