From owner-freebsd-net@FreeBSD.ORG Thu May 21 23:16:13 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 957C8C77 for ; Thu, 21 May 2015 23:16:13 +0000 (UTC) Received: from mail-ig0-f169.google.com (mail-ig0-f169.google.com [209.85.213.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 605F91656 for ; Thu, 21 May 2015 23:16:13 +0000 (UTC) Received: by igbyr2 with SMTP id yr2so22844466igb.0 for ; Thu, 21 May 2015 16:16:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-type; bh=Hck+qk4ZHtPuAgUrgKoFmq3KZvcIaxCSim8fMv9OYy8=; b=hcCXm2fxD8/7++pwJa/qhq7l6KKf9DhcUJyLIOBDZuCY+oYiURx1cHt1w4tsvdyTE4 Eo0G4xGe0OneXuJu6x0IG3NVIfRSVz3NwLqwDYiMGl0Hgv2z/rUBt+jk6zMywJ2H9vCx V/UgfQAg2i4xG3zuZ2wHM7mpPSmL13YOqo13xl7qcgLJ+yJ1x2kT2aC2fKSuW1DS8avP Xomb928Gh4vmgGYGO8U5PxoRiql17WJbpYo95xxhjmTSMRXyUrXLQy/rXChmLcAImjaA s0oKvA0Qr2XiwqnL4iOO0xzevNEC//9YBWxzIQYoDAKw389B0DAcMrzHEcucMA7cGf58 L1mQ== X-Received: by 10.107.133.154 with SMTP id p26mr6664827ioi.7.1432249778422; Thu, 21 May 2015 16:09:38 -0700 (PDT) Received: from mail-ig0-f182.google.com (mail-ig0-f182.google.com. [209.85.213.182]) by mx.google.com with ESMTPSA id j194sm280886ioe.7.2015.05.21.16.09.38 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 May 2015 16:09:38 -0700 (PDT) Received: by igbhj9 with SMTP id hj9so23319141igb.1 for ; Thu, 21 May 2015 16:09:37 -0700 (PDT) X-Received: by 10.42.119.142 with SMTP id b14mr6036830icr.29.1432249777922; Thu, 21 May 2015 16:09:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Eric Joyner Date: Thu, 21 May 2015 23:09:37 +0000 Message-ID: Subject: Re: FreeBSD 9.3 - Intel X520-SR2 stops passing packets To: Guy Helmer , Christopher Forgeron Cc: FreeBSD Net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 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, 21 May 2015 23:16:13 -0000 Are there any log messages printed out by the driver? The sysctls don't really look out of the ordinary, other than the number of sub-64 byte packets. On Thu, May 21, 2015 at 9:10 AM Guy Helmer wrote: > > > On May 21, 2015, at 8:52 AM, Christopher Forgeron > wrote: > > > > A few things: > > > > 1) How long before you have this behaviour? > > > > 2) What's the output of 'netstat -m' when you have the problem? > > > > 3) What is your MTU set to, and do you have TSO on or off? > > > > On Thu, May 21, 2015 at 10:33 AM, Guy Helmer > wrote: > > I=E2=80=99ve noticed that there have been reports of problems with Inte= l > X520-SR2 network interfaces stopping working. I think I=E2=80=99m seeing = a similar > issue where the 10Gb interfaces stop receiving traffic (they=E2=80=99re b= eing used > in promiscuous mode to sniff traffic from a tap). ifconfig shows the > interfaces are still active and the links are OK. ifconfig down/up restor= es > activity. I=E2=80=99ve changed hw.intr_storm_threshold=3D8000 but I could= n=E2=80=99t tell if > the interrupt storm threshold had been triggered at the time the interfac= es > stopped passing traffic. > > It seems to run from hours to days without problems. > > I don=E2=80=99t have the output of =E2=80=9Cnetstat -m=E2=80=9D available= , but it did not indicate > any mbuf or cluster allocation failures. No jumbo clusters (4k, 9k, or 16= k) > were allocated. > > MTU is 1500. TSO is =E2=80=9Con=E2=80=9D but would seem to be irrelevant = =E2=80=94 no packets are > transmitted out of these interfaces (verified using =E2=80=9Cnetstat -i= =E2=80=9D). > > Thanks, > Guy > _______________________________________________ > 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"