From owner-freebsd-net@FreeBSD.ORG Fri Jan 7 16:44:54 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 4D0D9106566C; Fri, 7 Jan 2011 16:44:54 +0000 (UTC) (envelope-from jamesbrandongooch@gmail.com) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id AD12D8FC19; Fri, 7 Jan 2011 16:44:52 +0000 (UTC) Received: by wyf19 with SMTP id 19so17724793wyf.13 for ; Fri, 07 Jan 2011 08:44:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=kIP2ouakiUsCM6cQOEpDFknh1P4iZ/jpZ1i6ZzuJoo4=; b=Fjc0FiiBm054ADPjLm2HD7Xhf/QjgDkEqndJCMTyg0Bw4LZbYYeunPBHmNlFWjj0S4 NyRopmu7YaGq2bLifJIAOiaApHxBo6q/Bbi8nuGnWng6zlguCkaSiTJt9Q6HKxPkb0Ov 1578s3D2OAyZlf/5gUs+tPVF5g80IYTohtPDM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=cDc7et78xeAyaG1mz5xX/RjGw0xVqLD/hes7v/+27grpSEj0/rU/wh5hddGaUUXrws Rv4RAuqhma4eU97IO3K0/bG3Z5aBM8Ytqq7zaAoOI1dxI3kwzaLslsViKvxuyER1G4/R FbGLI+qKgIMiH//YytDiAPQm587zcNS7q3/io= MIME-Version: 1.0 Received: by 10.216.55.145 with SMTP id k17mr1718213wec.48.1294418464142; Fri, 07 Jan 2011 08:41:04 -0800 (PST) Received: by 10.216.36.71 with HTTP; Fri, 7 Jan 2011 08:41:04 -0800 (PST) In-Reply-To: <57312439.20110107171430@nitronet.pl> References: <201953550.20110106221821@nitronet.pl> <57312439.20110107171430@nitronet.pl> Date: Fri, 7 Jan 2011 10:41:04 -0600 Message-ID: From: Brandon Gooch To: Pawel Tyll Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-net@freebsd.org, Jack Vogel , freebsd-ipfw@freebsd.org Subject: Re: [Panic] Dummynet/IPFW related recurring crash. 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: Fri, 07 Jan 2011 16:44:54 -0000 On Fri, Jan 7, 2011 at 10:14 AM, Pawel Tyll wrote: > One more question tough, > > I have 4 identical machines, also with em-driven NICs - yet this is > the only one that dies like this. OTOH Other machines don't do traffic > shaping and do not use ipfw that extensively. Does this match your > theory? It's likely that the mbuf handling problem (in em_refresh_mbufs()) is triggered by the processing you're doing with ipfw (or elsewhere for that matter), so, yes, I think it's a bug fixed in the revision discussed. When you update and test, please let us know. Also, don't forget to submit a follow-up to your PR. Thanks! -Brandon