From owner-freebsd-stable@FreeBSD.ORG Tue Sep 22 20:01:46 2009 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 9332D1065670 for ; Tue, 22 Sep 2009 20:01:46 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: from qw-out-2122.google.com (qw-out-2122.google.com [74.125.92.24]) by mx1.freebsd.org (Postfix) with ESMTP id 45CDC8FC12 for ; Tue, 22 Sep 2009 20:01:46 +0000 (UTC) Received: by qw-out-2122.google.com with SMTP id 3so29806qwe.7 for ; Tue, 22 Sep 2009 13:01:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:from:date:to:cc :subject:message-id:reply-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=dTFI5COLXcwvKILQm2sxHhP4O4I0aReLjJ1/DHG2cFA=; b=Et3nmZsnRB6sEi6+/B5TaIaMvTc0f+lB5kkljwUAikE2g2XUFxrdeDajr8nx9hX4lZ Ra7DRUTEUm8WYPlbIugW+EiEeUR25pIalGrjAvP7YEq92jmtDp0+bAGK3q+XR7qwnxVi VdVFR/3HvC4yTITc+E3ogHqGH4vb1zrtD5qUc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:cc:subject:message-id:reply-to:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=iahNfP3UVrzTv1vvO8CQjUoCHc1r/WPovDTMGqrI9GexvzIG77gLLuRcc44zkCtB/+ 2TD/dPk8lo5T2bHD9/Ix2S3ZHtBXZmdyA7zU7LhzwKGfNyfhWRhjQVOFwwMUk2SSC+X3 UTqIb+bli9o1Qt0zII3jn1C/GT0+LhbRRdRTc= Received: by 10.224.36.91 with SMTP id s27mr1196385qad.136.1253649704159; Tue, 22 Sep 2009 13:01:44 -0700 (PDT) Received: from pyunyh@gmail.com ([174.35.1.224]) by mx.google.com with ESMTPS id 2sm184088qwi.10.2009.09.22.13.01.41 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 22 Sep 2009 13:01:41 -0700 (PDT) Received: by pyunyh@gmail.com (sSMTP sendmail emulation); Tue, 22 Sep 2009 13:00:53 -0700 From: Pyun YongHyeon Date: Tue, 22 Sep 2009 13:00:53 -0700 To: Cassidy Larson Message-ID: <20090922200053.GA1520@michelle.cdnetworks.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i Cc: freebsd-stable@freebsd.org Subject: Re: Random Network Drops on Realtek Interfaces (re) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Sep 2009 20:01:46 -0000 On Mon, Sep 21, 2009 at 11:25:17PM -0600, Cassidy Larson wrote: > All, > > I've been experiencing an intermittent issue with a drop in networking > connectivity on a couple of boxes. > > At random times I drop connectivity between the servers and their > gateway. I am able to login via the secondary interface and > "/etc/netstart" and everything starts behaving as normal. My switch > shows the link is up, ifconfig shows the link is up, but I am unable > to ping my gateway until running "/etc/netstart". Somedays it'll > happen a few times an hour, some days once every 8-10 hours. It really > is intermittent, and driving me crazy trying to track down the issue. > I've tried different cables, switches, gateways, IPs, and locations. > Memtest for 5 days showed no errors. However, the same problem exists > on two separate installs at different times. I am able to connect to > the one server from the second via their secondary interfaces, so the > problem isn't related to both network interfaces. > > Both servers have the Supermicro X7SLM-L motherboard, same CPU, RAM > and disks. Using the Realtek network driver (re). pciconf shows: > vendor = 'Realtek Semiconductor' > device = 'Gigabit Ethernet NIC(NDIS 6.0) (RTL8168/8111)' > class = network > subclass = ethernet > > I've experienced the problem for some time now on both 7.2-RELEASE and > 7.2-STABLE (09/20/09) using amd64. > > Any help or suggestions would be useful in getting to the bottom of this. > > Thanks, > By chace can you find any messages in dmesg reported by re(4)? dmesg output related to re(4) would be more helpful as RealTek controllers used to show same device ids.