From owner-freebsd-stable@FreeBSD.ORG Sat Mar 6 18:36:11 2010 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EA4BB106566C for ; Sat, 6 Mar 2010 18:36:11 +0000 (UTC) (envelope-from tom.hurst@clara.net) Received: from ita.aagh.net (ita.aagh.net [208.86.225.114]) by mx1.freebsd.org (Postfix) with ESMTP id C1A868FC0A for ; Sat, 6 Mar 2010 18:36:11 +0000 (UTC) Received: from cpc1-hart9-2-0-cust900.11-3.cable.virginmedia.com ([86.30.3.133] helo=voi.aagh.net ident=mailnull) by ita.aagh.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.71 (FreeBSD)) (envelope-from ) id 1NnyIh-000FRE-7V; Sat, 06 Mar 2010 18:00:31 +0000 Received: from freaky by voi.aagh.net with local (Exim 4.71 (FreeBSD)) (envelope-from ) id 1NnyIf-0000QA-Id; Sat, 06 Mar 2010 18:00:29 +0000 Date: Sat, 6 Mar 2010 18:00:29 +0000 From: Thomas Hurst To: Jack Vogel Message-ID: <20100306180029.GA99452@voi.aagh.net> Mail-Followup-To: Jack Vogel , Nick Rogers , stable@freebsd.org References: <147432021003051648x1a1417dfp3c778922ea2c571f@mail.gmail.com> <2a41acea1003051718r241ac3e9w6ceb37bde0128b43@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2a41acea1003051718r241ac3e9w6ceb37bde0128b43@mail.gmail.com> Organization: Not much. User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Nick Rogers , stable@freebsd.org Subject: Re: em(4) interface hangs under 8.0-RELEASE 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: Sat, 06 Mar 2010 18:36:12 -0000 * Jack Vogel (jfvogel@gmail.com) wrote: > Its using MSI? Given that its PCI-X I have no idea how robust MSI is, > how bout you compile it with that disabled, use legacy IRQ and see > if that makes any diff. I'm seeing similar issues with a quad port 82546EB card, and they're not using MSI as far as I can tell; IRC 28-31. MSI's are >127 or so I think? > Using TSO on anything pre-PCI Express is a bad idea, probably why > its gotten a bad rep in the em driver. Don't see TSO in ifconfig options, but will issue an ifconfig em3 -tso to see if it makes any difference. Interestingly I can pull 30-60MB/s to/from em0 (LAN) without any problems, but pulling 5MB/s from em3 has repeatedly led to the interface just going silent until I bounce it. Quite intermitent though, sometimes it dies in the first second or two, sometimes I can pull down 20GB without a hitch. -- Thomas 'Freaky' Hurst http://hur.st/