Crash in clientCycleUpdateWireframe()
Just saw a recent crash dump (unknown cause) for xfwm4 4.20.0.
Here is the backtrace, hope it helps:
Core was generated by `xfwm4 --display :0.0 --sm-client-id ...UUID...'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 clientCycleUpdateWireframe (c=0x5564bbe29455, passdata=0x7ffc938e9710) at /usr/src/debug/xfwm4/xfwm4/src/cycle.c:230
230 if (c->screen_info->params->cycle_raise)
(gdb) bt
#0 clientCycleUpdateWireframe (c=0x5564bbe29455, passdata=0x7ffc938e9710) at /usr/src/debug/xfwm4/xfwm4/src/cycle.c:230
#1 clientCycleUpdateWireframe (c=0x5564bbe29455, passdata=0x7ffc938e9710) at /usr/src/debug/xfwm4/xfwm4/src/cycle.c:226
#2 clientCycleEventFilter (event=<optimized out>, data=0x7ffc938e9710) at /usr/src/debug/xfwm4/xfwm4/src/cycle.c:430
#3 0x00005561b6572fa1 in eventXfwmFilter (gdk_xevent=<optimized out>, gevent=<optimized out>, data=<optimized out>)
at /usr/src/debug/xfwm4/xfwm4/src/event_filter.c:175
#4 0x00007f19b8391320 in gdk_event_apply_filters (xevent=xevent@entry=0x7ffc938e9330, event=event@entry=0x7f199c013ca0,
window=window@entry=0x0) at ../gtk/gdk/x11/gdkeventsource.c:79
#5 0x00007f19b8399905 in gdk_event_source_translate_event (event_source=0x5561ed5d3120, xevent=0x7ffc938e9330)
at ../gtk/gdk/x11/gdkeventsource.c:198
#6 _gdk_x11_display_queue_events (display=0x5561ed5c0790) at ../gtk/gdk/x11/gdkeventsource.c:341
#7 0x00007f19b833829b in gdk_display_get_event (display=0x5561ed5c0790) at ../gtk/gdk/gdkdisplay.c:442
#8 0x00007f19b839a180 in gdk_event_source_dispatch.lto_priv () at ../gtk/gdk/x11/gdkeventsource.c:354
#9 0x00007f19b8030f4d in g_main_dispatch (context=0x5561ed5d32a0) at ../glib/glib/gmain.c:3565
#10 0x00007f19b8032617 in g_main_context_dispatch_unlocked (context=0x5561ed5d32a0) at ../glib/glib/gmain.c:4425
#11 g_main_context_iterate_unlocked (context=0x5561ed5d32a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
at ../glib/glib/gmain.c:4490
#12 0x00007f19b80329d7 in g_main_loop_run (loop=0x5561edf93eb0) at ../glib/glib/gmain.c:4695
#13 0x00007f19b876bc0f in gtk_main () at ../gtk/gtk/gtkmain.c:1332
#14 0x00005561b657163a in clientCycle (c=<optimized out>, event=event@entry=0x5561ed7a2080)
at /usr/src/debug/xfwm4/xfwm4/src/cycle.c:536
#15 0x00005561b65734fc in handleKeyPress (display_info=display_info@entry=0x5561ed985800, event=event@entry=0x5561ed7a2080)
at /usr/src/debug/xfwm4/xfwm4/src/events.c:475
#16 0x00005561b657979e in handleEvent (display_info=0x5561ed985800, event=0x5561ed7a2080)
at /usr/src/debug/xfwm4/xfwm4/src/events.c:2181
#17 xfwm4_event_filter (event=0x5561ed7a2080, data=0x5561ed985800) at /usr/src/debug/xfwm4/xfwm4/src/events.c:2302
#18 0x00005561b6572fa1 in eventXfwmFilter (gdk_xevent=<optimized out>, gevent=<optimized out>, data=<optimized out>)
at /usr/src/debug/xfwm4/xfwm4/src/event_filter.c:175
#19 0x00007f19b8391320 in gdk_event_apply_filters (xevent=xevent@entry=0x7ffc938e9a00, event=event@entry=0x5561ed7b7240,
window=window@entry=0x0) at ../gtk/gdk/x11/gdkeventsource.c:79
#20 0x00007f19b8399905 in gdk_event_source_translate_event (event_source=0x5561ed5d3120, xevent=0x7ffc938e9a00)
at ../gtk/gdk/x11/gdkeventsource.c:198
#21 _gdk_x11_display_queue_events (display=0x5561ed5c0790) at ../gtk/gdk/x11/gdkeventsource.c:341
#22 0x00007f19b833829b in gdk_display_get_event (display=0x5561ed5c0790) at ../gtk/gdk/gdkdisplay.c:442
#23 0x00007f19b839a180 in gdk_event_source_dispatch.lto_priv () at ../gtk/gdk/x11/gdkeventsource.c:354
#24 0x00007f19b8030f4d in g_main_dispatch (context=0x5561ed5d32a0) at ../glib/glib/gmain.c:3565
#25 0x00007f19b8032617 in g_main_context_dispatch_unlocked (context=0x5561ed5d32a0) at ../glib/glib/gmain.c:4425
#26 g_main_context_iterate_unlocked (context=0x5561ed5d32a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
at ../glib/glib/gmain.c:4490
#27 0x00007f19b80329d7 in g_main_loop_run (loop=0x5561ed98bb50) at ../glib/glib/gmain.c:4695
#28 0x00007f19b876bc0f in gtk_main () at ../gtk/gtk/gtkmain.c:1332
#29 0x00005561b656020f in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/xfwm4/xfwm4/src/main.c:721