From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sun, 26 Jan 2003 03:35:55 +0000 (GMT) Received: from 12-234-88-56.client.attbi.com ([IPv6:::ffff:12.234.88.56]:61328 "EHLO localhost.localdomain") by linux-mips.org with ESMTP id ; Sun, 26 Jan 2003 03:35:54 +0000 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by localhost.localdomain (8.12.5/8.12.5) with ESMTP id h0Q3ZUOf004377 for ; Sat, 25 Jan 2003 19:35:30 -0800 Received: (from lindahl@localhost) by localhost.localdomain (8.12.5/8.12.5/Submit) id h0Q3ZTBb004375 for linux-mips@linux-mips.org; Sat, 25 Jan 2003 19:35:29 -0800 X-Authentication-Warning: localhost.localdomain: lindahl set sender to lindahl@keyresearch.com using -f Date: Sat, 25 Jan 2003 19:35:29 -0800 From: Greg Lindahl To: linux-mips@linux-mips.org Subject: Re: [PATCH 2.5] FPU Message-ID: <20030126033529.GA4296@greglaptop.attbi.com> Mail-Followup-To: linux-mips@linux-mips.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 1221 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: lindahl@keyresearch.com Precedence: bulk X-list: linux-mips On Sun, Jan 26, 2003 at 02:58:09AM +0100, Vivien Chappelier wrote: > At various places in the 2.5 kernel, the fpu is accessed in > kernel mode with CU1 not set, causing an unexpected exception. Vivien, One good way to start with 2.5 bugs is to compare the code to the 2.4 kernel. Often you can see places where bugs were fixed in 2.4 but the fixes were not also made to the equivalent 2.5 code. This will keep 2.4 and 2.5 as close as possible, just like we want to keep the 64-bit and 32-bit kernels as close as possible. -- greg