From owner-freebsd-net@FreeBSD.ORG Sat Mar 10 10:34:00 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3D60D106566B for ; Sat, 10 Mar 2012 10:34:00 +0000 (UTC) (envelope-from hoomanfazaeli@gmail.com) Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by mx1.freebsd.org (Postfix) with ESMTP id BADE68FC08 for ; Sat, 10 Mar 2012 10:33:59 +0000 (UTC) Received: by wibhj6 with SMTP id hj6so1174366wib.13 for ; Sat, 10 Mar 2012 02:33:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=2Z2Mo0/iGEab1Xw2RA3xgqMcZcBKlYb4Mar8cTSqcAw=; b=BX5mlBUBTCJGN6wy569y9u5oZUlFRaCGVWGlsL7G6P41RdtyyiAC34RpbK3DIDZvn8 jzAscMPLLRNGucrPpwAHoMpOF9gnx5jnuPmzNNenX3k2azXX1YmY91RdfrfS5IYhb2zu SPPx1Qioky6rtVQHd1ggBdqgrzGGKLx6gvSs7S6vxFCsGgAlcmzGqQ6Tivca+HfZt48J aYi01o6IzwlwV/KHbtqAMgQhyj/UoqhIHqf9LFPxsIS3z/G9yS18RVJPDIVh4EPN+W1D jAJqh3IRFoxdUqLXd4SdAQGEnUpTQBmOvpwL1KdyNce6MrnX2B6Wq4nu0tM9xe/7jBoA 9AgA== Received: by 10.180.24.166 with SMTP id v6mr12220205wif.10.1331375638606; Sat, 10 Mar 2012 02:33:58 -0800 (PST) Received: from [127.0.0.1] ([84.241.57.181]) by mx.google.com with ESMTPS id bg3sm13086529wib.10.2012.03.10.02.33.56 (version=SSLv3 cipher=OTHER); Sat, 10 Mar 2012 02:33:57 -0800 (PST) Message-ID: <4F5B2E0E.10201@gmail.com> Date: Sat, 10 Mar 2012 14:03:50 +0330 From: Hooman Fazaeli User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.27) Gecko/20120216 Thunderbird/3.1.19 MIME-Version: 1.0 To: Jason Wolfe References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Intel 82574L interface wedging - em7.3.2/8.2-STABLE X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Mar 2012 10:34:00 -0000 Dear Jason With a link_irq of 4, I still guess your problem is snd_buf filling up during a temporary link_loss (see: http://lists.freebsd.org/pipermail/freebsd-net/2011-November/030424.html). I use a patched version of e1000 which addresses this issue and works good for me but it is based on 7.2.3 and I have just tested in on 7.3-RELEASE. If interested, I can send you the sources for test. You may also port my changes to 7.3.2 and roll your own version. On 3/8/2012 12:27 AM, Jason Wolfe wrote: > > I'm sure it's getting old with all of the recent work put into the > e1000 driver, but this is still ongoing with MSI-X enabled. Most > machines are running an 8.2-STABLE from early Feb, though it appears > there have been no relevant changes in RELENG_8 since then. I've > disabled all possible em options on the devices also to rule that out > and am still seeing the issue. I guess reverting back to MSI-X > disabled is the next step if nothing is spotted. This box had been > doing between 1 and 1.5Gb/s steady for the 26 days before the network > hang. > >