From owner-freebsd-current@FreeBSD.ORG  Wed Jul 21 10:54:46 2004
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 810BA16A4CE; Wed, 21 Jul 2004 10:54:46 +0000 (GMT)
Received: from mail.bitfreak.org (mail.bitfreak.org [65.75.198.146])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 5A4D743D58; Wed, 21 Jul 2004 10:54:46 +0000 (GMT)
	(envelope-from dmp@bitfreak.org)
Received: from speck.techno.pagans (c-24-21-241-225.client.comcast.net
	[24.21.241.225])
	by mail.bitfreak.org (Postfix) with ESMTP id 00B9F2A477;
	Wed, 21 Jul 2004 03:54:45 -0700 (PDT)
Received: from spud (spud.techno.pagans [172.21.42.19])
	by speck.techno.pagans (Postfix) with ESMTP id 88CB0A968;
	Wed, 21 Jul 2004 03:52:55 -0700 (PDT)
From: "Darren Pilgrim" <dmp@bitfreak.org>
To: "'Robert Watson'" <rwatson@freebsd.org>
Date: Wed, 21 Jul 2004 03:54:34 -0700
Message-ID: <000001c46f11$1f53a880$132a15ac@spud>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook, Build 10.0.6626
Importance: Normal
In-Reply-To: <Pine.NEB.3.96L.1040720191736.9228F-100000@fledge.watson.org>
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441
cc: 'Matt White' <matt+list.sw.freebsd.current@publicly.neglect.us>
cc: freebsd-current@freebsd.org
Subject: RE: fetch hangs, part 2
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: Wed, 21 Jul 2004 10:54:46 -0000

> From: Robert Watson [mailto:rwatson@freebsd.org]=20
>=20
>=20
> On Tue, 20 Jul 2004, Darren Pilgrim wrote:
>=20
> > I've been having the same (or a similar problem).  Fetching the =
distfile
> > for a port will hang.  I poked some more at this and found that all =
the
> > sites fetch is hanging on successfully negotiate the TCP connection =
then
> > go dead without closing the connection.  My workaround has been to =
edit
> > the Makefile and remove the offending site from MASTER_SITES or =
manually
> > fetch from ftp.freebsd.org.=20
>=20
> Could you try disabling TCP SACK

Set net.inet.tcp.delayed_ack=3D0?

> and see if things "get better"?  It's one
> of the things that has changed in the TCP code recently.  This could =
well
> be a user space fetch issue, but it would be worth trying it to see, =
if
> only to rule it out.

It didn't change.  The connections still hung.