From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 9 Sep 2001 18:12:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 9 Sep 2001 18:12:22 -0400 Received: from femail47.sdc1.sfba.home.com ([24.254.60.41]:51412 "EHLO femail47.sdc1.sfba.home.com") by vger.kernel.org with ESMTP id ; Sun, 9 Sep 2001 18:12:11 -0400 Content-Type: text/plain; charset=US-ASCII From: Nicholas Knight Reply-To: tegeran@home.com To: Carsten Leonhardt , linux-kernel@vger.kernel.org Subject: Re: Athlon/K7-Opimisation problems Date: Sun, 9 Sep 2001 15:11:54 -0700 X-Mailer: KMail [version 1.2] In-Reply-To: <87g09w70o4.fsf@cymoril.oche.de> In-Reply-To: <87g09w70o4.fsf@cymoril.oche.de> MIME-Version: 1.0 Message-Id: <01090915115400.00173@c779218-a> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sunday 09 September 2001 10:07 am, Carsten Leonhardt wrote: > Hi, > > here's my data regarding the K7 optimisation problem. > > Until last week I had a 1GHz Athlon with 133MHz FSB. I then bought a > 1.4GHz Athlon, again 133MHz FSB. > > I never had any problems with the 1GHz processor, but as soon as I > stuck the 1.4GHz processor in, the kernel oopsed itself to > oblivion. (That was with kernel 2.4.5-ac5, approximately) This is common enough it's becoming absurd. > > I also noticed that the computer booted ok with the Debian > bootfloppies, which use a kernel compiled for i386. So after several > kernel compile/boot cycles, I found out that I had to disable K7 > optimisation to make the system boot again. > > The mainboard is a Tyan Trinity KT-A (S2390B) with a VIA KT133A > chipset. > > After reading here that it may be the PSU, I upgraded my 300W PSU to a > 431W Enermax, which made no difference. > > The only difference I can make out between the working and the > non-working CPU is the internal clockspeed of the CPU and the > stepping (old: 2, new: 4). Heat anyone? stepping 4 hasn't seemed to be the problem, at least not directly What's the tempature difference between your 1Ghz and 1.4Ghz? both CPU and system? What kind of cooling do you have?