From owner-freebsd-hackers  Mon Dec 26 23:57:39 1994
Return-Path: hackers-owner
Received: (from root@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id XAA10486 for hackers-outgoing; Mon, 26 Dec 1994 23:57:39 -0800
Received: from transarc.com (transarc.com [192.54.226.1]) by freefall.cdrom.com (8.6.9/8.6.6) with SMTP id HAA10480 for <hackers@freebsd.org>; Tue, 27 Dec 1994 07:57:36 GMT
Received: by transarc.com (5.54/3.15) id <AA02922> for hackers@freebsd.org; Tue, 27 Dec 94 02:57:03 EST
Received: via switchmail; Tue, 27 Dec 1994 02:57:03 -0500 (EST)
Received: from unix3 via qmail
          ID </afs/transarc.com/service/mailqs/q1/QF.YizwWgiSMV1b80OkQl>;
          Tue, 27 Dec 1994 02:56:30 -0500 (EST)
Received: from unix3 via qmail
          ID </afs/transarc.com/usr/pat/.Outgoing/QF.0izwWfiSMV1bA7WkY7>;
          Tue, 27 Dec 1994 02:56:27 -0500 (EST)
Received: from cui.2.0.CUILIB.3.45.SNAP.NOT.LINKED.unix3.sun4.40
          via MS.5.6.unix3.sun4_40;
          Tue, 27 Dec 1994 02:56:27 -0500 (EST)
Message-Id: <sizwWfaSMV1bI7WkQx@transarc.com>
Date: Tue, 27 Dec 1994 02:56:27 -0500 (EST)
From: Pat_Barron@transarc.com
To: hackers@freebsd.org
Subject: Why am I getting these SLIP crashes?
Sender: hackers-owner@freebsd.org
Precedence: bulk

OK, I have some more data about these SLIP related crashes that I've been
happening.  Here is what I've been doing to start SLIP sessions:

   1)  "cu -l /dev/cua01 -s 19200"
   2)  Dial up to Cisco terminal server, start SLIP; the terminal
       server gives me an IP address (chosen based on what line I've
       gotten in my hunt group).
   3)  Use "~^Z" to suspend cu.
   4)  "slattach -h -s 19200 /dev/cua01"
   5)  "ifconfig sl0 <my-ip-address>"
   6)  "route add default <my-default-router-address>"
   7)  "telnet <some-host>"

At this point, the machine spontaneously reboots.  No panic or anything,
just a reboot - as if the CPU has taken a double-fault or something else
that would shut it down.

This even happens if I do "telnet localhost" in step #7 (but this may be
because a DNS lookup is being attempted across the SLIP interface).

Now, I *can* get this to work; between step #5 and step #6, I have to
do "route add <my-network-number> <my-slip-address> 0"; I get a warning
message that says "old usage of trailing 0; assuming route to if", but
that was what I wanted anyway.  *Then* I can use the network, and th
machine does not crash.

What changed to make this happen?  I am using the -current version of 2.0,
which I am sup'ing from freefall.  I first noticed this behavior in a kernel
I sup'ped some time around the first or second week of December.

Thanks,
--Pat.