From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 20 Nov 2001 07:41:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 20 Nov 2001 07:41:24 -0500 Received: from cx570538-a.elcjn1.sdca.home.com ([24.5.14.144]:8064 "EHLO keroon.dmz.dreampark.com") by vger.kernel.org with ESMTP id ; Tue, 20 Nov 2001 07:41:14 -0500 Message-ID: <3BFA4F69.D7560BDE@randomlogic.com> Date: Tue, 20 Nov 2001 04:41:13 -0800 From: "Paul G. Allen" Organization: Akamai Technologies, Inc. X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.14 i686) X-Accept-Language: en MIME-Version: 1.0 To: "Linux kernel developer's mailing list" Subject: Dual Athlon: Kernel 2.4.14 IDE problems Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I just compiled and installed a vanilla 2.4.14 kernel (nope, I haven't tweaked this one yet :). Just as a reminder, I have a Tyan Thunder K7 with 2 1.4GHz Athlons (_NOT_ MP or XP). It has an IBM DTLA-307030 Ultra100 IDE drive on the Ultra100 IDE interface. The kernel seems to boot with DMA enabled for this drive which causes frequent system lockups. This is the same problem I had with kernels through 2.4.9 (including the ac series). Disabling DMA (hdparm -d0 /dev/hda) solves the problem. Is this a hardware issue with the MP chipset (I have not kept up to date on AMD errata due to other projects), or is this drive one of the known IDE drives that do not properly support DMA? If a chipset issue, should the kernel not detect the problem and disable DMA? PGA -- Paul G. Allen UNIX Admin II/Programmer Akamai Technologies, Inc. www.akamai.com