From owner-freebsd-bugs  Wed Feb 17  5:27:28 1999
Delivered-To: freebsd-bugs@freebsd.org
Received: from chouette.inria.fr (chouette.inria.fr [138.96.24.103])
	by hub.freebsd.org (Postfix) with ESMTP id 010BB10F61
	for <freebsd-bugs@freebsd.org>; Wed, 17 Feb 1999 05:27:19 -0800 (PST)
	(envelope-from Emmanuel.Duros@sophia.inria.fr)
Received: by chouette.inria.fr (8.8.8/8.8.5) id OAA27036; Wed, 17 Feb 1999 14:27:06 +0100 (MET)
Date: Wed, 17 Feb 1999 14:27:06 +0100 (MET)
Message-Id: <199902171327.OAA27036@chouette.inria.fr>
From: Emmanuel Duros <Emmanuel.Duros@sophia.inria.fr>
To: freebsd-bugs@freebsd.org
Cc: luigi@labinfo.iet.unipi.it
Subject: RE: Dummynet & ipfw: kernel crashes !
X-URL: http://www.inria.fr/rodeo/personnel/eduros
Sender: owner-freebsd-bugs@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org


Following my previous mail I discovered that there is an option in the
kernel config file which, when using dummynet/ipfw, crashes the kernel.

When using a kernel compiled with this option:
options         DIAGNOSTIC

and executing ipfw as follows:

$ ipfw pipe 1 config delay 50ms
$ ipfw add pipe 1 ip from any to any

the kernel crashes...

This no longer occures when the option is commented out...

Any comment on this ?

Emmanuel Duros

---- Previous mail
Hi all,

I am trying to use dummynet but my kernel enters in panic mode...

here follows a decsription of my configuration:

FreeBSD version: 2.2.8-R

Options in the kernel config file:
options         IPDIVERT                # Divert sockets
options         DUMMYNET  
options         IPFIREWALL
options         IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default

dmesg output:
$ dmesg
FreeBSD 2.2.8-RELEASE #0: Mon Feb 15 20:09:11 CET 1999
    eduros@lpacman.inria.fr:/usr/src/sys/compile/LPACMAN
CPU: Pentium Pro (199.31-MHz 686-class CPU)
...
de0: enabling 10baseT port
IP packet filtering initialized, divert enabled, default to accept,
logging disabled
DUMMYNET initialized (980901) -- size dn_pkt 48

After booting I try the following pipe configuration:

$ ipfw pipe 1 config delay 50ms

and when I enter the next ipfw command:

$ ipfw add pipe 1 ip from any to any

and the station simply reboots (kernel in panic mode)...

However the following commands work fine (and I get the expected
delays):

$ ipfw add pipe 1 ip from HostA to HostB
$ ipfw add pipe 1 ip from Net/mask to Host

It seems it is related to 'from any to any'

I believe I do not have to patch anything since the dummynet is included
in 2.2.8-R.

Is there anything I can do ?

Thanks a lot
Emmanuel Duros



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message