Hi everyone, since today, I obtain multiple core dumps on a regular base from multiple applications. (the last software upgrade has been done a couple of days ago).
Running coredumpctl debug makes gdb display these information:
Core was generated by `/usr/lib/xfce4/panel/wrapper-2.0 /usr/lib/xfce4/panel/plugins/libwhiskermenu.so 8 14680071 whiskermenu Whisker\ Menu Show\ a\ menu\ to\ easily\ access\ installed\ applications'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 gtk_im_multicontext_set_slave (multicontext=0x640b8cf4ea00, slave=0x0, finalizing=0) at ../gtk/gtk/gtkimmulticontext.c:177
The stack trace is (the top lines are the same for every affected application, so I may safely assume the same root cause 
):
#0 gtk_im_multicontext_set_slave (multicontext=0x640b8cf4ea00, slave=0x0, finalizing=0) at ../gtk/gtk/gtkimmulticontext.c:177
#1 0x00007d762882e82a in g_closure_invoke (closure=0x640b8d170600, return_value=0x0, n_param_values=2, param_values=0x7ffe92926120, invocation_hint=0x7ffe92926070)
at ../glib/gobject/gclosure.c:833
#2 0x00007d762885f565 in signal_emit_unlocked_R.isra.0 (node=node@entry=0x7ffe92926230, detail=detail@entry=650, instance=instance@entry=0x640b8cf34ea0,
emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffe92926120) at ../glib/gobject/gsignal.c:3887
#3 0x00007d762884fca9 in signal_emit_valist_unlocked (instance=instance@entry=0x640b8cf34ea0, signal_id=signal_id@entry=1, detail=detail@entry=650, var_args=var_args@entry=0x7ffe929263a0)
at ../glib/gobject/gsignal.c:3519
#4 0x00007d762884ff32 in g_signal_emit_valist (instance=0x640b8cf34ea0, signal_id=1, detail=650, var_args=var_args@entry=0x7ffe929263a0) at ../glib/gobject/gsignal.c:3262
#5 0x00007d762884fff4 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../glib/gobject/gsignal.c:3582
#6 0x00007d762883ad16 in g_object_dispatch_properties_changed (object=0x640b8cf34ea0, n_pspecs=<optimized out>, pspecs=<optimized out>) at ../glib/gobject/gobject.c:1819
#7 0x00007d762883e544 in g_object_notify_by_spec_internal (object=0x640b8cf34ea0, pspec=0x640b8cf4ea00) at ../glib/gobject/gobject.c:1924
#8 g_object_notify_by_pspec (object=0x640b8cf34ea0, pspec=0x640b8cf4ea00) at ../glib/gobject/gobject.c:2030
#9 0x00007d7627f3a457 in _gdk_event_emit (event=0x640b8d210750) at ../gtk/gdk/gdkevents.c:73
#10 _gdk_event_emit (event=0x640b8d210750) at ../gtk/gdk/gdkevents.c:67
#11 0x00007d7627f96b40 in gdk_event_source_dispatch.lto_priv () at ../gtk/gdk/x11/gdkeventsource.c:354
#12 0x00007d7627c51559 in g_main_dispatch (context=0x640b8cf05e90) at ../glib/glib/gmain.c:3357
#13 0x00007d7627cb4257 in g_main_context_dispatch_unlocked (context=0x640b8cf05e90) at ../glib/glib/gmain.c:4208
#14 g_main_context_iterate_unlocked.isra.0 (context=0x640b8cf05e90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4273
#15 0x00007d7627c52287 in g_main_loop_run (loop=0x640b8d20fba0) at ../glib/glib/gmain.c:4475
#16 0x00007d76281e4d7f in gtk_main () at ../gtk/gtk/gtkmain.c:1329
#17 0x0000640b5580e2b1 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/xfce4-panel/xfce4-panel/wrapper/main.c:362
Am I the only one to face this issue? What may I try to get out of this situation?
Thanks!
Matthias