From owner-freebsd-current@FreeBSD.ORG Tue Feb 28 21:56:33 2012 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A0CB31065670; Tue, 28 Feb 2012 21:56:33 +0000 (UTC) (envelope-from lukasz@wasikowski.net) Received: from bijou.wasikowski.net (bijou.wasikowski.net [IPv6:2001:808:10f::1]) by mx1.freebsd.org (Postfix) with ESMTP id 48B368FC15; Tue, 28 Feb 2012 21:56:33 +0000 (UTC) Received: from bijou.wasikowski.net (localhost [127.0.0.1]) by bijou.wasikowski.net (Postfix) with ESMTP id F047F5C082; Tue, 28 Feb 2012 22:56:31 +0100 (CET) X-Virus-Scanned: amavisd-new at wasikowski.net Received: from bijou.wasikowski.net ([127.0.0.1]) by bijou.wasikowski.net (bijou.wasikowski.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4PN3JaArPdY3; Tue, 28 Feb 2012 22:56:25 +0100 (CET) Received: from [192.168.168.2] (leeloo.unixgroup.pl [62.121.126.31]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by bijou.wasikowski.net (Postfix) with ESMTPSA id 909475C081; Tue, 28 Feb 2012 22:56:24 +0100 (CET) Message-ID: <4F4D4D88.8040500@wasikowski.net> Date: Tue, 28 Feb 2012 22:56:24 +0100 From: =?ISO-8859-2?Q?=A3ukasz_W=B1sikowski?= User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 To: Arnaud Lacombe References: <20120221143537.Horde.deyFDZjmRSRPQ52pxBIpnLA@webmail.leidinger.net> <4F4BA707.5070608@wasikowski.net> <4F4D3476.7070803@wasikowski.net> In-Reply-To: X-Enigmail-Version: 1.3.5 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit Cc: "Bjoern A. Zeeb" , stable@freebsd.org, current@freebsd.org, Alexander Leidinger Subject: Re: [CFT] modular kernel config X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Feb 2012 21:56:33 -0000 W dniu 2012-02-28 22:22, Arnaud Lacombe pisze: >>>> FLOWTABLE on 8.x crashed BGP routers (kern/144917). >>>> >>> no crash dump, no backtrace, no follow-up whatsoever after 1 year and >>> 2 years, what's your points ? You could really have chosen a better PR >>> to back up your argument... >> >> Sorry, but I don't want to bug trace this issue, simply because lack of >> time, resources and interest in this feature. I've run into this bug on >> production box, went through hell because of it and turned off flowtable >> which I do not use and not need. If this problem is still alive (it >> might be, the PR I've mentioned is still open) then it's not a good idea >> to turn on this feature by default. If you're interested in using this >> feature then feel free to debug and test. >> > Give me a deterministic way to reproduce the issue and I will. Enable FLOWTABLES in kernel and setup BGP4+ router (with net/quagga). You need three peers sending you full Internet routing table (3x400k prefixes). Some people got it with only two peers. After a short while your CPU should stuck in 100% busy. -- best regards, Lukasz Wasikowski