environment-display-notifier

What is the method environment-internals:environment-display-notifier ?
Are there some docs on it anywhere?

When I:

- start up a tty-only LispWorks image
- run comm:start-up-server to create a new repl
- connect to that repl using telnet
- and enter the debugger using (break)

I get a debugger in the original repl complaining about the missing
definition for environment-display-notifier.  

Cheers,
Chris Dean


Error: No applicable methods for #<STANDARD-GENERIC-FUNCTION ENVIRONMENT-INTERNALS:ENVIRONMENT-DISPLAY-NOTIFIER 208733D2> with args (#<ENVIRONMENT:TTY-ENVIRONMENT 209855F7> :CONDITION #<SIMPLE-ERROR 200B2D2B> :RESTARTS (#<RESTART CONTINUE 2184EFBB> #<RESTART CONTINUE 2150E2DB> #<RESTART CONTINUE 215280DB> #<RESTART CONTINUE 21521727> #<RESTART CONTINUE 2151BD4B> #<RESTART CONTINUE 21517347> #<RESTART CONTINUE 215149EF> #<RESTART CONTINUE 21512DAF> #<RESTART ABORT 21512DE7>))
   1 (continue) Call #<STANDARD-GENERIC-FUNCTION ENVIRONMENT-INTERNALS:ENVIRONMENT-DISPLAY-NOTIFIER 208733D2> again
....