Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 5 Jan 2003 14:49:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 5 Jan 2003 14:49:01 -0500 Received: from tag.witbe.net ([81.88.96.48]:33544 "EHLO tag.witbe.net") by vger.kernel.org with ESMTP id ; Sun, 5 Jan 2003 14:49:00 -0500 From: "Paul Rolland" To: "'Justin T. Gibbs'" , Subject: Re: [2.5.54] Oops IDE-SCSI and failure AIC7xxx Date: Sun, 5 Jan 2003 20:57:32 +0100 Organization: Witbe.net Message-ID: <013901c2b4f4$af8c42a0$2101a8c0@witbe> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal In-Reply-To: <452090000.1041785566@aslan.scsiguy.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1750 Lines: 47 Hello, > There may be options in your BIOS to disable this "feature". > Look for things like "PCI byte-merging" and/or "PCI read > prefetch". I haven't had access to one of the new SIS based > P4 systems yet, so I don't know how they are setup or exactly > how they are violating the PCI spec. The test will fail > either if byte-merging or read prefetch occurs and perhaps if > there is an MTTR covering the memory mapped region of the > chip that is set to write combining mode (I don't think that > the mb() we issue after every memory write helps in this last case). I've been looking at the PCI option in the BIOS... 1st part is mapping IRQ to PCI slots... Then, you have : PCI/VGA Palette Snoop Disabled PCI Latency Timer 32 Primary VGA BIOS PCI VGA Card USB Function Enabled USB2.0 Function Enabled Onboard LAN Boot ROM Disabled Maybe related, the memory config : SDRAM Configuration By SPD Chipset clock mode Synchronous SDRam Command Lead-off time Auto Graphics Aperture Size 256 MB AGP Capability 4x Mode AGP Fast Write Capability Enabled Video Memory Cache Mode UC Memory hole at 15M-16M Disabled PCI 2.1 Support Enabled Onboard PCI IDE Enable Both IDE Bus Master Support Enabled Could it be PCI 2.1 Support ? Don't think because I've restarted with it disabled, and I still have the same problem... Regards, Paul - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/