Lisp backtrace follows:

  # (unwind-protect ...)
  # (catch #<INTERNAL OBJECT (XEmacs bug?) (opaque-ptr, adr=0x804230) 0x8369b0> ...)
  # (unwind-protect ...)
  # bind (inhibit-quit)
  # (unwind-protect ...)
  sit-for(1)
  # 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 ...)
Segmentation fault (core dumped)