From owner-freebsd-alpha@FreeBSD.ORG Wed Sep 8 02:41:20 2004 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA0F816A4CE for ; Wed, 8 Sep 2004 02:41:20 +0000 (GMT) Received: from ns1.xcllnt.net (209-128-86-226.BAYAREA.NET [209.128.86.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 450D543D46 for ; Wed, 8 Sep 2004 02:41:20 +0000 (GMT) (envelope-from marcel@xcllnt.net) Received: from alpha.pn.xcllnt.net (alpha.pn.xcllnt.net [192.168.4.4]) by ns1.xcllnt.net (8.13.1/8.13.1) with ESMTP id i882fKk0097870; Tue, 7 Sep 2004 19:41:20 -0700 (PDT) (envelope-from marcel@piii.pn.xcllnt.net) Received: from alpha.pn.xcllnt.net (localhost [127.0.0.1]) by alpha.pn.xcllnt.net (8.13.1/8.13.1) with ESMTP id i882fJrP007326; Tue, 7 Sep 2004 19:41:19 -0700 (PDT) (envelope-from marcel@alpha.pn.xcllnt.net) Received: (from marcel@localhost) by alpha.pn.xcllnt.net (8.13.1/8.13.1/Submit) id i882fJC9007325; Tue, 7 Sep 2004 19:41:19 -0700 (PDT) (envelope-from marcel) Date: Tue, 7 Sep 2004 19:41:19 -0700 From: Marcel Moolenaar To: Andreas Kohn Message-ID: <20040908024119.GA7290@alpha.pn.xcllnt.net> References: <1094587559.845.4.camel@klamath.ankon.de.eu.org> <20040907211357.GA96722@ns1.xcllnt.net> <1094592557.845.7.camel@klamath.ankon.de.eu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1094592557.845.7.camel@klamath.ankon.de.eu.org> User-Agent: Mutt/1.4.2.1i cc: Gheorghe Ardelean cc: freebsd-alpha@freebsd.org Subject: Re: 5.3-BETA3 and tga... X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Sep 2004 02:41:20 -0000 On Tue, Sep 07, 2004 at 11:29:17PM +0200, Andreas Kohn wrote: > > > > Some background: The machine check is caused by the load prior to > > the and instruction and it's this load that used to cause a MMU > > fault. The load is the very first register access for the TGA card. > > I'll see if newbusification makes a difference... > I did a quick experiment and it looks newbusification will solve the problem. Of course this opens pandora's box. The whole frame buffer code is unsuitable of being newbusified. By design, I might add. It'll be a lot of work. I think a kluge is called for but I'm not entirely sure it's something I want or should spend my time on. I need to give it some thought... -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net