From owner-freebsd-net@FreeBSD.ORG Mon Feb 25 18:38:10 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 2F2B0807 for ; Mon, 25 Feb 2013 18:38:10 +0000 (UTC) (envelope-from harrison@biostat.wisc.edu) Received: from agogare.doit.wisc.edu (agogare.doit.wisc.edu [144.92.197.211]) by mx1.freebsd.org (Postfix) with ESMTP id 05AA0E24 for ; Mon, 25 Feb 2013 18:38:09 +0000 (UTC) MIME-version: 1.0 Received: from avs-daemon.smtpauth2.wiscmail.wisc.edu by smtpauth2.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) id <0MIS00H00GIDE400@smtpauth2.wiscmail.wisc.edu> for freebsd-net@freebsd.org; Mon, 25 Feb 2013 12:38:09 -0600 (CST) X-Spam-PmxInfo: Server=avs-2, Version=5.6.1.2065439, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2013.2.25.182720, SenderIP=0.0.0.0 X-Spam-Report: AuthenticatedSender=yes, SenderIP=0.0.0.0 Received: from seal.biostat.wisc.edu (seal.biostat.wisc.edu [144.92.73.36]) by smtpauth2.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7u2-7.05 32bit (built Jul 30 2009)) with ESMTPSA id <0MIS00CSMH3HUH10@smtpauth2.wiscmail.wisc.edu> for freebsd-net@freebsd.org; Mon, 25 Feb 2013 12:38:06 -0600 (CST) Date: Mon, 25 Feb 2013 12:38:05 -0600 From: "Christopher D. Harrison" Subject: Re: igb network lockups In-reply-to: To: Jack Vogel Message-id: <512BAF8D.7080308@biostat.wisc.edu> X-Wisc-Sender: harrison@biostat.wisc.edu References: <512BAA60.3060703@biostat.wisc.edu> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.11) Gecko/20121116 Thunderbird/10.0.11 Content-Type: text/plain; CHARSET=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Feb 2013 18:38:10 -0000 Sure, The problem appears on both systems running with ALTQ and vanilla. -C On 02/25/13 12:29, Jack Vogel wrote: > I've not heard of this problem, but I think most users do not use > ALTQ, and we (Intel) do not > test using it. Can it be eliminated from the equation? > > Jack > > > On Mon, Feb 25, 2013 at 10:16 AM, Christopher D. Harrison > > wrote: > > I recently have been experiencing network "freezes" and network > "lockups" on our Freebsd 9.1 systems which are running zfs and nfs > file servers. > I upgraded from 9.0 to 9.1 about 2 months ago and we have been > having issues with almost bi-monthly. The issue manifests in the > system becomes unresponsive to any/all nfs clients. The system > is not resource bound as our I/O is low to disk and our network is > usually in the 20mbit/40mbit range. We do notice a correlation > between temporary i/o spikes and network freezes but not enough to > send our system in to "lockup" mode for the next 5min. Currently > we have 4 igb nics in 2 aggr's with 8 queue's per nic and our > dev.igb reports: > > dev.igb.3.%desc: Intel(R) PRO/1000 Network Connection version - 2.3.4 > > I am almost certain the problem is with the ibg driver as a friend > is also experiencing the same problem with the same intel igb nic. > He has addressed the issue by restarting the network using netif > on his systems. According to my friend, once the network > interfaces get cleared, everything comes back and starts working > as expected. > > I have noticed an issue with the igb driver and I was looking for > thoughts on how to help address this problem. > http://freebsd.1045724.n5.nabble.com/em-igb-if-transmit-drbr-and-ALTQ-td5760338.html > > Thoughts/Ideas are greatly appreciated!!! > > -C > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to > "freebsd-net-unsubscribe@freebsd.org > " > >