Re: CVS Emacs list-buffer-noselect calls set-window-buffer, displays every buffer briefly!

[Richard Stallman]

    I noticed the problem when I had over twenty buffers in existance.
    Perhaps on a very fast machine with only a few buffers, the redisplay is
    so fast that it isn't noticable.

The question is, why does it call redisplay at all?  This happens in a
save-window-excursion which doesn't have very much in it.  Nothing
in there ought to call redisplay.  If something does, what is it?

If you put a breakpoint at Fredisplay, and you are willing
to debug with some patience as it hits this breakpoint,
you could make a C backtrace that would tell us the answer.