From owner-freebsd-current@FreeBSD.ORG Tue Jul 26 19:33:30 2005 Return-Path: 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 78DA216A420 for ; Tue, 26 Jul 2005 19:33:30 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id E43F343D70 for ; Tue, 26 Jul 2005 19:33:24 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.13.0/8.13.0) with ESMTP id j6QJXOYP005423; Tue, 26 Jul 2005 12:33:24 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.13.0/8.13.0/Submit) id j6QJXOFH005422; Tue, 26 Jul 2005 12:33:24 -0700 Date: Tue, 26 Jul 2005 12:33:24 -0700 From: Brooks Davis To: Mike Jakubik Message-ID: <20050726193324.GA4603@odin.ac.hmc.edu> References: <42E58007.9030202@rogers.com> <20050726004246.GA20597@odin.ac.hmc.edu> <42E595C3.2070003@rogers.com> <20050726015428.GF20597@odin.ac.hmc.edu> <4901.172.16.0.199.1122345549.squirrel@172.16.0.1> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ew6BAiZeqk4r7MaW" Content-Disposition: inline In-Reply-To: <4901.172.16.0.199.1122345549.squirrel@172.16.0.1> User-Agent: Mutt/1.4.1i X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on odin.ac.hmc.edu Cc: freebsd-current@freebsd.org 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jul 2005 19:33:30 -0000 --ew6BAiZeqk4r7MaW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 25, 2005 at 10:39:09PM -0400, Mike Jakubik wrote: > On Mon, July 25, 2005 9:54 pm, Brooks Davis said: >=20 > >>> Probably something wrong with your interface, but you havent't > >>> provided any useful information so who knows. At the very least, I > >>> need to know what interface you are running on, something about it's > >>> status, and if both dhclient processes are running. > >>> > >> The interface is xl0 (3Com 3c905C-TX Fast Etherlink XL), and it worked > >> in this machine fine for as long as i remember. This seems to have > >> happened since a recent cvsup and buildworld from ~6-BETA to 7-CURRENT. > >> I rebooted three times, and the problem occured rougly a minute after > >> bootup. On the fourth time however, it seems to be ok so far. > > > > That sounds like a problem with the code that handles the link state > > notifications in the interface driver. The notifications are a reletiv= ly > > new feature that we're only now starting to use heavily so there are go= ing > > to be bumps in the road. It would be intresting to know if you see link > > state messages promptly if you plug and unplug the network cable. >=20 > It seems to be back at it again, this time it took longer to kick in. Here > is a "ps auxw|grep dhclient" : >=20 > _dhcp 219 93.5 0.2 1484 1136 ?? Rs 8:49PM 5:06.00 dhclient: > xl0 (dhclient) > root 193 0.0 0.2 1484 1088 d0- S 8:49PM 0:00.02 dhclient: > xl0 [priv] (dhclient) >=20 > top: >=20 > PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMA= ND > 219 _dhcp 1 129 0 1484K 1136K RUN 9:33 94.24% dhcli= ent >=20 > Nothing in dmesg about link state changes on xl0. Unplugging and > replugging the network cable results in link state notification within a > couple seconds. Could you see what happens if you run dhclient in the foreground? Just running "dhclient -d xl0" should do it. I'd like to know what sort of output it's generating. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --ew6BAiZeqk4r7MaW Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFC5o/+XY6L6fI4GtQRAnxvAKC/Fn6/rp7Ggz9jLwBD9dDoZlNPjgCeKMVU 3MbAQWJ9S43Tbwqb1UiNlbc= =/x4h -----END PGP SIGNATURE----- --ew6BAiZeqk4r7MaW--