I got core with Steve's instruction on 21.2.5 on FreeBSD 2.2.7, with
or without window mode.
SL Baur <steve(a)xemacs.org> writes:
Try this:
xemacs-21.2.5 -nw -q
C-x C-f ~/.emacs
M-x font-lock-mode
M-x fast-lock-mode
Loading fast-lock.Fatal error: assertion failed, file bytecode.c, line 1904, OPAQUEP
(f->instructions)
Fatal error (6).
Your files have been auto-saved.
Use `M-x recover-session' to recover them.
....
Lisp backtrace follows:
fast-lock-mode(nil)
# bind (command-debug-status)
call-interactively(fast-lock-mode)
command-execute(fast-lock-mode t)
# bind (_execute_command_keys_ _execute_command_name_ prefix-arg)
execute-extended-command(nil)
# bind (command-debug-status)
call-interactively(execute-extended-command)
# (condition-case ... . error)
# (catch top-level ...)
Abort (core dumped)