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Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!godot!massar
From: massar@godot.UUCP (J.P. Massar)
Newsgroups: net.emacs
Subject: CCA Emacs bug query
Message-ID: <643@godot.UUCP>
Date: Tue, 18-Dec-84 17:48:22 EST
Article-I.D.: godot.643
Posted: Tue Dec 18 17:48:22 1984
Date-Received: Thu, 20-Dec-84 00:19:48 EST
Distribution: net
Organization: Thinking Machines, Cambridge, MA
Lines: 28

The latest versions of CCA Emacs running on VAXEN with 4.2 seem to have
an incredibly obnoxious bug.  It was and still is present on CCA's own
version on a 780 and our version here at TMC on a 750.

Basically, whenever you type faster than Emacs can handle, there is the
possibility that when Emacs finally prints out your text, a character or
characters may be missing from the screen...  They are definitely in the
buffer since a C-L fixes the screen to be what you typed.  The worst of
it is you don't know whether you've made a mistake or Emacs has misplaced
a character!

My question is:  I have never seen anyone outside of CCA/TMC complain
about this.  Does this happen elsewhere?  Secondly, does anyone have the
faintest idea what might cause such behavior?  It seems to get worse as
the load average gets higher.  What, indeed, could cause such behavior?!?
If I even had a clue I might be willing to look at the code.

This behavior, in fact, has happened at least 5 (oops, 6!) times while
I've been typing this.  The load average on our 750 is 2.00.

(E.g., when I typed 'at least 5' I got on the screen 'atleast 5' but when
I C-L'ed the screen showed 'at least 5'.)

Help!

JP Massar
ihnp4!godot!massar
massar@cca-unix