From owner-freebsd-stable@FreeBSD.ORG Mon Jul 5 05:26:31 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4D97E106566B for ; Mon, 5 Jul 2010 05:26:31 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: from mail-px0-f182.google.com (mail-px0-f182.google.com [209.85.212.182]) by mx1.freebsd.org (Postfix) with ESMTP id 178608FC15; Mon, 5 Jul 2010 05:26:30 +0000 (UTC) Received: by pxi4 with SMTP id 4so342363pxi.13 for ; Sun, 04 Jul 2010 22:26:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:subject:mime-version :content-type:from:in-reply-to:date:cc:content-transfer-encoding :message-id:references:to:x-mailer; bh=UUFmCLVf1eBThCWk8lt1w1Vk7y1nNn3iBxLCqdNL034=; b=ME7uJ7PddafoP1rPsv58uDpDNzBxhElQCTyNHMqkQUFQcbwjtWXohxPpB/QdzHVpZC 1bWdLStgC042/MiFtksqLnL76SJiNA2znMEY6C5BgA+dio44tdmn+0rXc2c25X9I6m+i Z2NAwmeEm6qYjDW/YhXajCcS01sH6dS24oShE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; b=dUUQjvNO9WCpurfez15idqn6+uBd+vj7GuaOIYq9J329qtG6r3mcxxghACq9Eeo9mo 1dwbwW71dddJjzTs2V9eKLDGttdqn4JZGZpo3Xs8KT54Pr2ayIkILwoKHZd0w5ueWNGP GCkQnd0pYc4bRJ9HJOaT0YvbqIpgudoZxjilg= Received: by 10.142.134.7 with SMTP id h7mr2701213wfd.248.1278306260751; Sun, 04 Jul 2010 22:04:20 -0700 (PDT) Received: from [192.168.0.203] (deviant.freebsdgirl.com [173.8.183.73]) by mx.google.com with ESMTPS id x18sm4110823wfd.20.2010.07.04.22.04.19 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sun, 04 Jul 2010 22:04:20 -0700 (PDT) Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=us-ascii From: Garrett Cooper In-Reply-To: Date: Sun, 4 Jul 2010 22:04:18 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <5D34EED0-9560-45A1-ADCF-176C4996E17E@gmail.com> References: To: David Warren X-Mailer: Apple Mail (2.1081) Cc: freebsd-stable@freebsd.org, jvogel@freebsd.org Subject: Re: 8.0 network problem X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jul 2010 05:26:31 -0000 On Jul 4, 2010, at 5:52 PM, David Warren wrote: > Hi all, >=20 > I've got a persistent problem with my LAN. I'm running a FreeBSD = 8.0 > box as a home server performing the following functions for wired and > wireless networks: router; firewall; DHCP server; and file server. = For what > it's worth, I've got ZFS up and running as the main filesystem. The > recurring issue is that file transfers from the FreeBSD box to = computers on > the wired network (gigabit) start out fast and then become agonizingly > slow. I'm sharing home directories over Samba, and those transfers = work > briefly and then tail off to a few kilobytes per second. The failure = is > somewhat predicatable in that it tends to happen once a few hundred > megabytes have been transferred. I've swapped out hardware, I've = Googled > extensively, and all of the (possibly benign) error messages that I've = found > have been eliminated. I'm happy to post logs, configs, etc., and I'd > appreciate any help with a diagnosis. For the moment: Disable rxcsum and txcsum on the cards; see if that does the = trick. Before that, I'd see whether or not Jack Vogel (the current = em(4) maintainer) would some details about your traffic, like a tcpdump = session log. HTH, -Garrett=