From owner-freebsd-current@FreeBSD.ORG  Wed Jul 27 19:55:28 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: 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 D155F16A41F
	for <freebsd-current@FreeBSD.org>; Wed, 27 Jul 2005 19:55:28 +0000 (GMT)
	(envelope-from jkim@niksun.com)
Received: from anuket.mj.niksun.com (gwnew.niksun.com [65.115.46.162])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 6A16643D45
	for <freebsd-current@FreeBSD.org>; Wed, 27 Jul 2005 19:55:28 +0000 (GMT)
	(envelope-from jkim@niksun.com)
Received: from niksun.com (anuket [10.70.0.5])
	by anuket.mj.niksun.com (8.13.1/8.13.1) with ESMTP id j6RJva3P090564;
	Wed, 27 Jul 2005 15:57:36 -0400 (EDT) (envelope-from jkim@niksun.com)
From: Jung-uk Kim <jkim@niksun.com>
Organization: NIKSUN, Inc.
To: Brooks Davis <brooks@one-eyed-alien.net>
Date: Wed, 27 Jul 2005 15:54:58 -0400
User-Agent: KMail/1.6.2
References: <42E58007.9030202@rogers.com>
	<20050726233933.GA13679@odin.ac.hmc.edu>
	<20050727191043.GA17885@odin.ac.hmc.edu>
In-Reply-To: <20050727191043.GA17885@odin.ac.hmc.edu>
MIME-Version: 1.0
Content-Disposition: inline
Content-Type: text/plain;
  charset="euc-kr"
Content-Transfer-Encoding: 7bit
Message-Id: <200507271555.00945.jkim@niksun.com>
X-Virus-Scanned: ClamAV 0.85.1/994/Wed Jul 27 04:28:09 2005 on
	anuket.mj.niksun.com
X-Virus-Status: Clean
Cc: Wilko Bulte <wb@freebie.xs4all.nl>, freebsd-current@FreeBSD.org,
	Mike Jakubik <mikej@rogers.com>
Subject: Re: dhclient taking all cpu
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
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: Wed, 27 Jul 2005 19:55:28 -0000

On Wednesday 27 July 2005 03:10 pm, Brooks Davis wrote:
> I think I've found it.  There was a really odd typo (= instead of
> +) in the code that handles undersized captures on the bpf socket. 
> Please try the following patch and see if it solves the problem. 
> I'm testing here, but I don't have a reliable way to trigger the
> bug.  The fix is fairly obvious so I'll commit it to head shortly.

Good catch!  It seems to fix my 'infinite loop' problem.

One more problem to solve...  I have to do the following to make 
bge(4) working correctly at boot time:

ifconfig_bge0="up DHCP"

Without `up', dhclient fails like this:

bge0: link state changed to DOWN
bge0: no link .............. giving up
bge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
	options=1a<TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
	ether xx:xx:xx:xx:xx:xx
	media: Ethernet autoselect (none)
	status: no carrier

because bge(4) does not change link state while the interface is down.  
This problem is more serious with wireless driver because link 
doesn't go up until it is associated with some AP.

I was always wondering which is correct.  Do we have to update link 
state while interface is down or not?

Thanks!

Jung-uk Kim