Re: Concern about new binding.

[Gregory Heytings]

> > On a side note, I don't understand the "At garbage collection time" in 
> > the doc string of "undo-outer-limit":
> >
> > Outer limit on size of undo information for one command. At garbage 
> > collection time, if the current command has produced more than this 
> > much undo information, it discards the info and displays a warning. 
> > This is a last-ditch limit to prevent memory overflow.
> >
> > It seems to me that this happens when the command is executed, not "at 
> > garbage collection time".
>
> That discarding of the undo info happens in a function that compacts 
> buffers and truncates their undo lists.  That function is called from 
> GC.  If you see the message when the command is executed, it simply 
> means that GC is called immediately after the command or even while the 
> command still runs.

You are correct.  But with the default Emacs values, "gc-cons-threshold" 
is 800000 and "undo-outer-limit" is 24000000, GC will happen immediately.