From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753838AbWKMDX6 (ORCPT ); Sun, 12 Nov 2006 22:23:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753841AbWKMDX6 (ORCPT ); Sun, 12 Nov 2006 22:23:58 -0500 Received: from mail1.key-systems.net ([81.3.43.253]:1922 "HELO mailer2-1.key-systems.net") by vger.kernel.org with SMTP id S1753838AbWKMDX6 (ORCPT ); Sun, 12 Nov 2006 22:23:58 -0500 Message-ID: <4557E549.1080506@scientia.net> Date: Mon, 13 Nov 2006 04:23:53 +0100 From: Christoph Anton Mitterer User-Agent: Icedove 1.5.0.7 (X11/20061014) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Re: unexplainable read errors, copy/diff-issue References: <4553DD90.1090604@scientia.net> <20061110135649.16cccca0.vsu@altlinux.ru> In-Reply-To: <20061110135649.16cccca0.vsu@altlinux.ru> Content-Type: multipart/mixed; boundary="------------020608000100030904070306" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------020608000100030904070306 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit I may have probably found the bug,.. or at least some valuable information about it. It seems like it's actually the DMA who is responsible for the errors. Until now I've completed 3 rund where I validated all files via their sha512 sums,... and no errors were found. I did this only on the PATA drives,... not yet on the SATA drives (and remember, the issue happened on both drive types) 1) How do I deactivate DMA for an SATA drive? 2) How can I find out definitely if Windows uses DMA for a drive or not. The hardware management shows for the primary IDE controller an activated DMA. But the diff was so slow under Windows, that I assume that this may be wrong. Does this give you any further idea about the possible reason for the issue? Is it possible a driver error (for that specific chipsets)? Or hardware error? Or can I try any other things? Thanks and best wishes, Chris. --------------020608000100030904070306 Content-Type: text/x-vcard; charset=utf-8; name="calestyo.vcf" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="calestyo.vcf" YmVnaW46dmNhcmQNCmZuOk1pdHRlcmVyLCBDaHJpc3RvcGggQW50b24NCm46TWl0dGVyZXI7 Q2hyaXN0b3BoIEFudG9uDQplbWFpbDtpbnRlcm5ldDpjYWxlc3R5b0BzY2llbnRpYS5uZXQN CngtbW96aWxsYS1odG1sOlRSVUUNCnZlcnNpb246Mi4xDQplbmQ6dmNhcmQNCg0K --------------020608000100030904070306--