From owner-freebsd-stable@freebsd.org Fri Oct 2 17:37:18 2015 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BC41AA0D474 for ; Fri, 2 Oct 2015 17:37:18 +0000 (UTC) (envelope-from lists@searchy.net) Received: from j006.host001.searchy.nl (j006.host001.searchy.nl [79.143.214.199]) by mx1.freebsd.org (Postfix) with ESMTP id 849621252 for ; Fri, 2 Oct 2015 17:37:17 +0000 (UTC) (envelope-from lists@searchy.net) Received: from [192.168.5.21] (5418453B.cm-5-1b.dynamic.ziggo.nl [84.24.69.59]) (Authenticated sender: ppi@j006.host001.searchy.nl) by j006.host001.searchy.nl (Postfix) with ESMTPSA id 6CFC51E8C07 for ; Fri, 2 Oct 2015 17:37:10 +0000 (UTC) Message-ID: <560EC0C6.409@searchy.net> Date: Fri, 02 Oct 2015 19:37:10 +0200 From: "Frank de Bot (lists)" User-Agent: Mozilla/5.0 (X11; Linux i686; rv:34.0) Gecko/20100101 Firefox/34.0 SeaMonkey/2.31 MIME-Version: 1.0 To: FreeBSD Stable Subject: em0 and em1 watchdog timed out Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Oct 2015 17:37:18 -0000 On a server I have 2 interfaces configured in a lagg. It seemed to be running stable until now (about a week), both interfaces repeatable go down after a watchdog timeout. Output from /var/log/messages Oct 2 10:15:11 nas kernel: em0: Watchdog timeout Queue[0]-- resetting Oct 2 10:15:11 nas kernel: Interface is RUNNING and ACTIVE Oct 2 10:15:11 nas kernel: em0: TX Queue 0 ------ Oct 2 10:15:11 nas kernel: em0: hw tdh = 804, hw tdt = 905 Oct 2 10:15:11 nas kernel: em0: Tx Queue Status = -2147483648 Oct 2 10:15:11 nas kernel: em0: TX descriptors avail = 915 Oct 2 10:15:11 nas kernel: em0: Tx Descriptors avail failure = 0 Oct 2 10:15:11 nas kernel: em0: RX Queue 0 ------ Oct 2 10:15:11 nas kernel: em0: hw rdh = 912, hw rdt = 911 Oct 2 10:15:11 nas kernel: em0: RX discarded packets = 0 Oct 2 10:15:11 nas kernel: em0: RX Next to Check = 912 Oct 2 10:15:11 nas kernel: em0: RX Next to Refresh = 911 Oct 2 10:15:11 nas kernel: em0: link state changed to DOWN Oct 2 10:15:13 nas kernel: em0: link state changed to UP Oct 2 10:15:13 nas devd: Executing '/etc/rc.d/dhclient quietstart em0' Oct 2 10:21:56 nas kernel: em1: Interface stopped DISTRIBUTING, possible flapping Oct 2 10:21:59 nas kernel: em1: Watchdog timeout Queue[0]-- resetting Oct 2 10:21:59 nas kernel: Interface is RUNNING and ACTIVE Oct 2 10:21:59 nas kernel: em1: TX Queue 0 ------ Oct 2 10:21:59 nas kernel: em1: hw tdh = 686, hw tdt = 806 Oct 2 10:21:59 nas kernel: em1: Tx Queue Status = -2147483648 Oct 2 10:21:59 nas kernel: em1: TX descriptors avail = 896 Oct 2 10:21:59 nas kernel: em1: Tx Descriptors avail failure = 0 Oct 2 10:21:59 nas kernel: em1: RX Queue 0 ------ Oct 2 10:21:59 nas kernel: em1: hw rdh = 167, hw rdt = 166 Oct 2 10:21:59 nas kernel: em1: RX discarded packets = 0 Oct 2 10:21:59 nas kernel: em1: RX Next to Check = 167 Oct 2 10:21:59 nas kernel: em1: RX Next to Refresh = 166 Oct 2 10:21:59 nas kernel: em1: link state changed to DOWN Oct 2 10:22:02 nas kernel: em1: link state changed to UP Oct 2 10:22:02 nas devd: Executing '/etc/rc.d/dhclient quietstart em1' it seems to occur when the interface are loaded. On the same server I also have a PCI card, the same issue occurs here. em0 and em1 are both onboard 80003ES2LAN. the PCI card is 82571EB. I've found different threads, but I couldn't manage to find a fix for this. What else can be wrong? Regards, Frank de Bot