Subject: bin/1326: vi editing bug
To: None <gnats-bugs@gnats.netbsd.org>
From: Neil J. McRae <neil@demon.net>
List: netbsd-bugs
Date: 08/10/1995 15:22:09
>Number: 1326
>Category: bin
>Synopsis: vi editing bug
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: bin-bug-people (Utility Bug People)
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Aug 10 10:35:01 1995
>Last-Modified:
>Originator: Neil J. McRae
>Organization:
Demon Internet.
>Release: Today's current at 15:00 BST
>Environment:
libs Aug 6, bins Aug 6, vi was compiled as of todays current
System: NetBSD NetBSD.demon.co.uk 1.0A NetBSD 1.0A (NETBSD) #1: Fri Aug 4 12:17:47 BST 1995 neil@NetBSD.demon.co.uk:/usr/src/sys/arch/sparc/compile/NETBSD sparc
>Description:
In vi when editing a line with:
set ts=4
set wrapmargin=5
set wrapscan
When inserting text near the end of a line, what looks like to be a
memory leak or data going past bounds, The line is corrupt with lots of
^@'s Trying an ^[:e! to get the file back segfaults vi:
[no idea if this is any use]
Program terminated with signal 11, Segmentation fault.
#0 0x40cf244 in ?? ()
(gdb) bt
#0 0x40cf244 in ?? ()
#1 0x40c3248 in ?? ()
#2 0x40bdf94 in ?? ()
#3 0x40c1dfc in ?? ()
#4 0x5504 in ?? ()
#5 0x3cb4 in ?? ()
#6 0x17a00 in ?? ()
#7 0x137a0 in ?? ()
#8 0x11674 in ?? ()
#9 0x3443c in ?? ()
#10 0x26664 in ?? ()
#11 0x32678 in ?? ()
#12 0x37c88 in ?? ()
#13 0x711c in ?? ()
>How-To-Repeat:
Install vi current, Use the settings mentioned above
Edit a file with a line like this:
Exec "elm" exec rsh axe "exec /usr/X11R6/bin/xterm -fg skyblue -bg black -T Mail -n Mail -e /usr/local/bin/elm &" & </dev/ull >/dev/null
In this example try and insert this after the "/usr/X11R6/bin/xterm" part,
-display NetBSD:0 and the problem should happen, then do ^[:e! and vi will
seg fault.
>Fix:
A workaround for this was to add it in another part of the line...
>Audit-Trail:
>Unformatted: