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Path: utzoo!linus!philabs!seismo!hao!hplabs!sri-unix!thomas%UTAH-GR@utah-cs
From: thomas%UTAH-GR@utah-cs@sri-unix.UUCP
Newsgroups: net.emacs
Subject: Emacs #264 (Unipress) core dumps with ^N in minibuf: Fix.
Message-ID: <3918@sri-arpa.UUCP>
Date: Sat, 6-Aug-83 07:08:00 EDT
Article-I.D.: sri-arpa.3918
Posted: Sat Aug  6 07:08:00 1983
Date-Received: Mon, 8-Aug-83 03:19:25 EDT
Lines: 15

From:  Spencer W. Thomas  <thomas%UTAH-GR@utah-cs>

With a 2-line minibuffer in Unipress emacs, do:
	M-x ^O^O^N^N
Your emacs should die with a segmentation fault (usually).  It doesn't
realize that the ^N has put you "off the screen", and searches downward
for the line you are on.  Eventually it hits a pointer to non-existent
memory.  Here is a fix (line numbers will be a little off) in DoDsp:
843c845,846
< 	    while (dot>=LineStart[LOneLLine+1] && !IsMode[LOneLLine+1])
---
> 	    while (dot>=LineStart[LOneLLine+1] && !IsMode[LOneLLine+1] &&
> 		    LOneLLine+1 <=ScreenLength )

=Spencer