From owner-freebsd-current@FreeBSD.ORG Tue Jan 27 08:04:21 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8068816A4CE; Tue, 27 Jan 2004 08:04:21 -0800 (PST) Received: from kazi.fit.vutbr.cz (kazi.fit.vutbr.cz [147.229.8.12]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0397443D6A; Tue, 27 Jan 2004 08:03:45 -0800 (PST) (envelope-from cejkar@fit.vutbr.cz) Received: from kazi.fit.vutbr.cz (localhost [127.0.0.1]) by kazi.fit.vutbr.cz (8.12.11/8.12.11) with ESMTP id i0RG3dCr073826 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Tue, 27 Jan 2004 17:03:39 +0100 (CET) Received: (from cejkar@localhost) by kazi.fit.vutbr.cz (8.12.11/8.12.5/Submit) id i0RG3do1073825; Tue, 27 Jan 2004 17:03:39 +0100 (CET) X-Authentication-Warning: kazi.fit.vutbr.cz: cejkar set sender to cejkar@fit.vutbr.cz using -f Date: Tue, 27 Jan 2004 17:03:39 +0100 From: Rudolf Cejka To: Bill Paul Message-ID: <20040127160339.GA72958@fit.vutbr.cz> References: <20040127111802.GA96935@fit.vutbr.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040127111802.GA96935@fit.vutbr.cz> User-Agent: Mutt/1.4.1i X-Scanned-By: MIMEDefang 2.16 (www . roaringpenguin . com / mimedefang) cc: freebsd-current@FreeBSD.ORG Subject: Re: Project Evil: The Evil Continues X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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, 27 Jan 2004 16:04:21 -0000 Rudolf Cejka wrote (2004/01/27): > > you have not provided a more precise means of duplicating the crash > > (I can't do cvsup from home: I only have a dialup). Cvsup is not > > a network diagnostic or traffic generation tool: it is not possible > > to generate consistent, reproducible results with it. Use ttcp or > > netperf instead, then show me _EXACTLY_ how you ran it to produce > > the crash so I can do it too. > > Ok, I do it. Now I have to go to lunch ;o) Do you have this or similar > card too? The driver is bcmwl5.sys and it seems that it is shared > among several cards. Hmm, I'm trying to reproduce the panic with multiple parallel nttcp/ttcp/netperf and dd, but still without any success. It seems that the panic is very dependent on the network, cpu and/or disk load. It occurs just in case, when cvsup is run with -P- argument, that is there are two sockets for four independent communication channels, two in and two out. If I run cvsup with -Pm, what means just one multiplexed socket for all four channels, the panics disappear. -- Rudolf Cejka http://www.fit.vutbr.cz/~cejkar Brno University of Technology, Faculty of Information Technology Bozetechova 2, 612 66 Brno, Czech Republic