I did (setq debug-on-error t), went to https://en.wikipedia.org/wiki/Emacs, randomly selected a fragment "Emacs has over", then did a ctrll+c. Emacs in VirtualBox immediately showed the following: Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) dbus-handle-event((dbus-event "[ \11]*$")) funcall-interactively(dbus-handle-event (dbus-event "[ \11]*$")) call-interactively(dbus-handle-event nil [(dbus-event "[ \11]*$")]) command-execute(dbus-handle-event nil [(dbus-event "[ \11]*$")] t) On Sat, May 4, 2024 at 10:11 PM Eli Zaretskii wrote: > > From: Kun Liu > > Date: Sat, 4 May 2024 13:49:41 -0700 > > > > (gdb) print data > > $1 = XIL(0x55f268372323) > > (gdb) xtype > > Lisp_Cons > > (gdb) xcar > > $2 = 0x11f40 > > (gdb) xtype > > Lisp_Symbol > > (gdb) xsymbol > > $3 = (struct Lisp_Symbol *) 0x55f2626ad440 > > "wrong-type-argument" > > > > To your question, I wasn't doing anything in Emacs. I was just copying > in Chrome. > > > > Also I upgraded VirtualBox from 6 to 7. And looks like Emacs is no > longer crashing. Now it reports the following > > in mini-bufffer: > > > > funcall-interactively: Wrong type argument: listp, [(2 19 1) ((emacs > (24))) "A modern list library for Emacs" tar > > ((:commit . "39d067b9fbb2db65fc7a6938bfb21489ad990cb4") (:authors > ("Magnar Sveen" . > > "magnars@gmail.com")) (:maintainers ("Magnar Sveen" . "magnars@gmail.com")) > (:maintainer "Magnar > > Sveen" . "magnars@gmail.com") (:keywords "extensions" "lisp") (:url . " > https://github.com/magnars/dash.el"))] > > What were you copying in Chrome when this happened? Was it text or > some other entity. Does the text/object you were copying have > anything in common with the data of the error message above? Can you > tell what URL to go to and which part of the page to copy, to > reproduce what you did? > > Also, please set debug-on-error to a non-nil value, and post the Lisp > backtrace you get when these errors happen. >