From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750821AbVJASvE (ORCPT ); Sat, 1 Oct 2005 14:51:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750822AbVJASvE (ORCPT ); Sat, 1 Oct 2005 14:51:04 -0400 Received: from pD9F879C2.dip0.t-ipconnect.de ([217.248.121.194]:6784 "EHLO susi.maya.org") by vger.kernel.org with ESMTP id S1750821AbVJASvC (ORCPT ); Sat, 1 Oct 2005 14:51:02 -0400 From: Andreas Hartmann X-Newsgroups: linux.kernel Subject: Problem while setting dma with kernel 2.6.13 Date: Sat, 01 Oct 2005 20:49:47 +0200 Organization: privat Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------070701040403030606070408" X-Complaints-To: abuse@arcor.de User-Agent: Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.7.11) Gecko/20050911 X-Accept-Language: de, en-us, en To: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------070701040403030606070408 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello all, since 2.6.13, I can see often (not allways), problems setting the DMA onto the first ide channel. The following commands are executed during booting: hdparm -S30 -d1 -m16 /dev/hda hdparm -y /dev/hdb If the error occures, it takes about 5 seconds until the command is executed. These error messages can be seen afterwards: hda: dma_intr: status=0xd0 { Busy } ide: failed opcode was: unknown hda: DMA disabled hdb: DMA disabled hda: set_drive_speed_status: status=0xd0 { Busy } ide: failed opcode was: unknown ide0: reset: success Surprisingly, the DMA is switched on afterwards nevertheless!? lspci -vvv -xxx gives on 2.6.12 for IDE: 00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP]) Subsystem: VIA Technologies, Inc. VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- TAbort- SERR-