Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!rutgers!ames!sdcsvax!ucbvax!SMITH.BITNET!MANAGER
From: MANAGER@SMITH.BITNET (Mary Malmros)
Newsgroups: comp.os.vms
Subject: VAX Lisp bug?
Message-ID: <8708050303.AA09537@ucbvax.Berkeley.EDU>
Date: Mon, 3-Aug-87 10:36:00 EDT
Article-I.D.: ucbvax.8708050303.AA09537
Posted: Mon Aug  3 10:36:00 1987
Date-Received: Fri, 7-Aug-87 01:21:19 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Distribution: world
Organization: The ARPA Internet
Lines: 34

I've had a problem reported to me involving VAX Lisp and phone lines.  The
problem is this: when someone has dialed in and is using Lisp and they lose the
line for whatever reason, the process does *not* die but stays active and
continues to munch up CPU.  Better still, the next person to connect to that
phone port connects to the Lisp process as well.  I've been told that this also
happens when someone dials in to machine A, sets host to machine B, invokes
Lisp on machine B, and then loses the line...process on A dies, but Lisping
process on B stays on (network process without a host...spooky).  I have not
checked this out myself, however, so I can't say if this is the case.

I don't understand why this is happening.  I know that Lisp disables a lot of
interrupts but I would not think that it could somehow ignore a disconnect
unless someone decided to design it that way, and why would you do that?
Furthermore, the problem seems to be exclusively confined to phone lines; if
you request a disconnect through either Ethernet or our Ungermann-Bass LAN, the
process is terminated.  Anyway...HELP PLEASE.  If this keeps up I'm going to
have mega-problems once the students get back, what with security completely
trashed and my CPU fallen into a black hole.  Any information on changes in
configurations of Lisp or terminals, confirmation of problem from other
sources, SPR history, or (fond hope) news of patches from DEC would be much
appreciated.


+++++++++++++++++++++++++++++++++++  MMMMM            MMMMM    2222
+                                 +   MM MM          MM MM   222  222
+  Mary Malmros                   +   MM  MM        MM  MM  22     222
+  Systems Manager                +   MM   MM      MM   MM       222
+  Center for Academic Computing  +   MM    MM    MM    MM    2222
+  Smith College                  +   MM     MM  MM     MM  22222222222
+  Northampton, MA   01063        +   MM      MMMM      MM
+  (413) 584-2700 x3073           +   MM       MM       MM
+  MANAGER@SMITH.BITNET           +   MM                MM
+                                 +   MM                MM
+++++++++++++++++++++++++++++++++++  MMMM              MMMM