Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 29 Jul 2001 18:36:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 29 Jul 2001 18:36:32 -0400 Received: from router-100M.swansea.linux.org.uk ([194.168.151.17]:45323 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Sun, 29 Jul 2001 18:36:24 -0400 Subject: Re: DMA problem (?) w/ 2.4.6-xfs and ServerWorks OSB4 Chipset To: mjustice@austin.rr.com Date: Sun, 29 Jul 2001 23:37:53 +0100 (BST) Cc: linux-kernel@vger.kernel.org In-Reply-To: <01072916503504.04012@bozo> from "Marvin Justice" at Jul 29, 2001 04:50:35 PM X-Mailer: ELM [version 2.5 PL5] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Original-Recipient: rfc822;linux-kernel-outgoing > On an unrelated topic the Serverworks LE chipset does not seem to be capable > of handling 4GB of RAM, despite what the board vendors claim in their specs. > When a 4th 1G stick is added the system gets really slow --- like maybe > cacheing is disabled. We've seen this on both Tyan and SuperMicro boards. The > HE chipset seems to be ok. Check the mtrr setups. I've seen slow machines that are slow with 4Gb purely because the bios misconfigured the memory type ranges Alan - 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/