From owner-freebsd-net@FreeBSD.ORG Thu Mar 1 14:52:39 2007 Return-Path: X-Original-To: freebsd-net@FreeBSD.org Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 8086916A403 for ; Thu, 1 Mar 2007 14:52:39 +0000 (UTC) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (cell.sick.ru [217.72.144.68]) by mx1.freebsd.org (Postfix) with ESMTP id 0948313C4A3 for ; Thu, 1 Mar 2007 14:52:38 +0000 (UTC) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (glebius@localhost [127.0.0.1]) by cell.sick.ru (8.13.4/8.13.3) with ESMTP id l21EqYFm007289 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 1 Mar 2007 17:52:34 +0300 (MSK) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.sick.ru (8.13.4/8.13.1/Submit) id l21EqY3o007288; Thu, 1 Mar 2007 17:52:34 +0300 (MSK) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.sick.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Thu, 1 Mar 2007 17:52:33 +0300 From: Gleb Smirnoff To: dima <_pppp@mail.ru> Message-ID: <20070301145233.GR1621@FreeBSD.org> Mail-Followup-To: Gleb Smirnoff , dima <_pppp@mail.ru>, freebsd-net@freebsd.org References: <20070228122459.GK1621@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.6i Cc: freebsd-net@FreeBSD.org Subject: Re: is CARP still impossible on SMP in 6.2? 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, 01 Mar 2007 14:52:39 -0000 On Wed, Feb 28, 2007 at 06:08:21PM +0300, dima wrote: d> > On Wed, Feb 28, 2007 at 02:28:13PM +0300, dima wrote: d> > d> I'm trying to make CARP working on a 2-Xeon hardware. It worked OK on 5.5, but not on 6.2. d> > d> The result of compiling both d> > d> options SMP d> > d> device carp d> > d> into the kernel makes it crash in 'swi1: net' kernel thread on a random (usually first) use of the CARP facility. d> > d> > Can you please provide a backtrace? d> d> It's not that easy. The server becomes extremely unstable under these conditions. d> I tried to build the kernel with '-g' option and included 'dumpdev' in /etc/rc.conf. The server can't even make a memory dump: it either gets one more page fault or just stops responding to anything but Reset key in the beginning of the dump. d> It's strange since it rebooted well while the kernel was built without debugging symbols and a dumpdev. Any ideas how I can make a memory dump? Why do you think the CARP is guilty in this unstableness? Are you triggering MASTER<->BACKUP events and this causes instability? -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE