From owner-freebsd-net@FreeBSD.ORG Thu Oct 27 07:01:08 2011 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 6DB91106564A for ; Thu, 27 Oct 2011 07:01:08 +0000 (UTC) (envelope-from gpm@hotplug.ru) Received: from gate.pikinvest.ru (gate.pikinvest.ru [87.245.155.170]) by mx1.freebsd.org (Postfix) with ESMTP id C3F5F8FC13 for ; Thu, 27 Oct 2011 07:01:07 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mailgate.pik.ru (Postfix) with ESMTP id 5F1651C08BD; Thu, 27 Oct 2011 11:01:06 +0400 (MSD) Received: from EX03PIK.PICompany.ru (unknown [192.168.156.51]) by mailgate.pik.ru (Postfix) with ESMTP id D346E1C08A2; Thu, 27 Oct 2011 11:01:05 +0400 (MSD) Received: from EX21PIK.PICompany.ru ([192.168.156.131]) by EX03PIK.PICompany.ru with Microsoft SMTPSVC(6.0.3790.4675); Thu, 27 Oct 2011 11:00:24 +0400 Received: from [192.168.148.9] (192.168.148.9) by EX21PIK.PICompany.ru (192.168.156.131) with Microsoft SMTP Server id 14.1.218.12; Thu, 27 Oct 2011 10:51:09 +0400 Message-ID: <4EA8FF4B.3070704@hotplug.ru> Date: Thu, 27 Oct 2011 10:50:51 +0400 From: Emil Muratov User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.23) Gecko/20110922 Thunderbird/3.1.15 MIME-Version: 1.0 To: Adrian Chadd References: <4E8F157A.40702@sentex.net> <4E8F51D4.1060509@sentex.net> <4EA7E203.3020306@sepehrs.com> <4EA80818.3030504@sentex.net> <4EA80F88.4000400@hotplug.ru> In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 27 Oct 2011 07:00:24.0420 (UTC) FILETIME=[19A50A40:01CC9476] Cc: freebsd-net@freebsd.org, Hooman Fazaeli , Jason, Wolfe , Mike Tancsa Subject: Re: Intel 82574L interface wedging on em 7.1.9/7.2.3 when MSIX enabled 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: Thu, 27 Oct 2011 07:01:08 -0000 >> Hi All, >> I've got almost the same problem with intel 82574L based nic. My platform is >> nvidia ion running Atom 1.6 and nic is an external PCI-express adapter. >> Unlike Jason's case mine is always stuck in receiving traffic, it's Ierrs >> increasing while Ipkts not. Thanks to Jason's script I can see those locks >> and interface flapping every several hours. My system is not a heavy loaded >> server but just a home nas/router, usually routing at 100 mbps or less. >> Nither disabling MSIX nor tuning txd rxd doesn't help me. >> > Hi, > > When this occurs, does this completely lock up with RX traffic? Ie, > _no_ valid RX traffic occurs? > If so, does the error count increase 1:1 with what traffic you're > trying to send to it? > Hi Adrian Yes, it's completely locked - ping packet loss to the interface is 100%, I also managed to run tcpdump -ni em0 and there were only outgoing packets from the interface but no packets arrived to the interface. As for the error counter ratio - I'm not sure about it, don't know how check this besides comparing counters on the switch with interface, but it's a little bit complicated to catch in time.