From owner-freebsd-questions@FreeBSD.ORG  Tue Mar 13 17:50:35 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 894C816A400
	for <freebsd-questions@freebsd.org>;
	Tue, 13 Mar 2007 17:50:35 +0000 (UTC)
	(envelope-from kris@obsecurity.org)
Received: from elvis.mu.org (elvis.mu.org [192.203.228.196])
	by mx1.freebsd.org (Postfix) with ESMTP id 69A4E13C45D
	for <freebsd-questions@freebsd.org>;
	Tue, 13 Mar 2007 17:50:35 +0000 (UTC)
	(envelope-from kris@obsecurity.org)
Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196])
	by elvis.mu.org (Postfix) with ESMTP id 4EC471A3C1C;
	Tue, 13 Mar 2007 10:50:35 -0700 (PDT)
Received: by obsecurity.dyndns.org (Postfix, from userid 1000)
	id 7048251339; Tue, 13 Mar 2007 13:50:34 -0400 (EDT)
Date: Tue, 13 Mar 2007 13:50:34 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: James Long <list@museum.rain.com>
Message-ID: <20070313175033.GA9609@xor.obsecurity.org>
References: <20070313080612.GA19177@ns.umpquanet.com>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="PNTmBPCT7hxwcZjr"
Content-Disposition: inline
In-Reply-To: <20070313080612.GA19177@ns.umpquanet.com>
User-Agent: Mutt/1.4.2.2i
Cc: freebsd-questions@freebsd.org
Subject: Re: dmesg and GIANT-LOCK
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 13 Mar 2007 17:50:35 -0000


--PNTmBPCT7hxwcZjr
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Tue, Mar 13, 2007 at 01:06:12AM -0700, James Long wrote:
> With regard to the recent thread about looking for GIANT-LOCKs in
> dmesg, why would one system say:
>=20
> ns : 00:56:29 /home/james> uname -v ;dmesg | grep fxp
> FreeBSD 6.2-STABLE #0: Tue Feb 20 15:47:09 PST 2007
> fxp0: <Intel 82559 Pro/100 Ethernet> port 0x2400-0x243f mem 0xc4fff000-0x=
c4ffffff,0xc4e00000-0xc4efffff irq 10 at device 2.0 on pci0
> miibus0: <MII bus> on fxp0
> fxp0: Ethernet address: 00:02:a5:0a:57:73
>=20
>=20
> while a more recent build says:
>=20
> t30 : 00:56:19 /home/james> uname -v ;dmesg | grep fxp
> FreeBSD 6.2-STABLE #2: Thu Mar  8 08:23:11 PST 2007
> fxp0: <Intel 82801CAM (ICH3) Pro/100 VE Ethernet> port 0x7400-0x743f mem =
0xd0200000-0xd0200fff irq 11 at device 8.0 on pci2
> miibus0: <MII bus> on fxp0
> fxp0: Ethernet address: 00:09:6b:86:82:a6
> fxp0: [GIANT-LOCKED]

fxp is not giant locked, you can check the source for the INTR_MPSAFE
flag in sys/dev/fxp/if_fxp.c.  I'm not sure how you are seeing this,
please describe the configuration of this system further (kernel
config, loader.conf).

Kris

--PNTmBPCT7hxwcZjr
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (FreeBSD)

iD8DBQFF9uRpWry0BWjoQKURAtpuAKCn+kRaLAH+QzzIPCmGEQ9ISf7kegCg9rPq
SFT2ExhAsalcWAPqMPWWd0k=
=drIu
-----END PGP SIGNATURE-----

--PNTmBPCT7hxwcZjr--