From owner-freebsd-current@FreeBSD.ORG  Thu Nov 27 00:30:24 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0D4F016A4CE
	for <freebsd-current@freebsd.org>;
	Thu, 27 Nov 2003 00:30:24 -0800 (PST)
Received: from md.gfk.ru (md.gfk.ru [62.205.179.201])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 6EC2C43FAF
	for <freebsd-current@freebsd.org>;
	Thu, 27 Nov 2003 00:30:22 -0800 (PST)
	(envelope-from Yuriy.Tsibizov@gfk.ru)
Received: from [62.205.179.219] ([62.205.179.219])
	by md.gfk.ru ([62.205.179.201])
	with SMTP (MDaemon.PRO.v6.5.2.R)
	for <freebsd-current@freebsd.org>; Thu, 27 Nov 2003 11:29:53 +0300
Date: Thu, 27 Nov 2003 11:29:20 +0300 (MSK)
From: Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru>
X-X-Sender: chibis@free.home.local
To: freebsd-current@freebsd.org
Message-ID: <20031127110256.H711@free.home.local>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-MDRemoteIP: 62.205.179.219
X-Return-Path: Yuriy.Tsibizov@gfk.ru
X-MDaemon-Deliver-To: freebsd-current@freebsd.org
Subject: Re: recent current panic
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 27 Nov 2003 08:30:24 -0000

>i got a panic on recent -CURRENT:

># tcpdump -i lo0 port 23 &
>[1] 507
>listening on lo0

># telnet localhost
>Trying ::1...

>Wed Nov 26 14:51:23 MSK 2003
>Debugger+0x55:  xchgl   %ebx,in_Debugger.0
>db> tr
> Debugger(c0898daf,0,c087197f,d629d8dc,100) at Debugger+0x55
> panic(c087197f,c0854d72,c168bd00,c095c9e0,d629d9fc) at panic+0x156
> if_simloop(c2cace00,c168bd00,2,0,1) at if_simloop+0xc5
> looutput(c2cace00,c168bd00,c2c86290,c2f31400,14b) at looutput+0xde
[....]

It looks very similar to http://www.freebsd.org/cgi/query-pr.cgi?pr=59576.
You can revert to version 1.28 of net/bpf.h if you need tcpdump on lo,
tun, ic, plip, disc or gif interface right now.

Yuriy.