From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 2 May 2002 16:45:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 2 May 2002 16:45:55 -0400 Received: from host.greatconnect.com ([209.239.40.135]:55556 "EHLO host.greatconnect.com") by vger.kernel.org with ESMTP id ; Thu, 2 May 2002 16:45:53 -0400 Message-ID: <3CD1A469.9040605@rackable.com> Date: Thu, 02 May 2002 13:41:13 -0700 From: Samuel Flory User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0rc1) Gecko/20020417 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Alan Cox Subject: 2.4.19pres and IDE DMA Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm having issues with a Tyan 2720 and post 2.4.18 boards with a Maxtor 4G120J6. Under 2.4.18 I can turn on dma via "hdparm -d 1". Under 2.4.19pre7 I get "HDIO_SET_DMA fail ed: Operation not permitted". On a side note the same thing occurs with the RH 2.4.18-0.13 kernel. It appears both kernels merged an ide update from the ac kernel line. PS-There is also some issue with a resource conflict that occurs under every kernel I've tried. 2.4.18: bash-2.05# hdparm -d 1 /dev/hda /dev/hda: setting using_dma to 1 (on) using_dma = 1 (on) bash-2.05# hdparm -d /dev/hda /dev/hda: using_dma = 1 (on) bash-2.05# 2.4.19pre7 root@dev30> /sbin/hdparm /dev/hda /dev/hda: multcount = 16 (on) I/O support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 238216/255/63, sectors = 240121728, start = 0 busstate = 1 (on) root@dev30> /sbin/hdparm -d1 /dev/hda /dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA fail ed: Operation not permitted using_dma = 0 (off) lspci strangeness: (both 2.4.19pre7, and 2.4.18) 00:1f.1 IDE interface: Intel Corporation: Unknown device 248b (rev 02) (prog-if 8a [Master SecP PriP]) Flags: bus master, medium devsel, latency 0, IRQ 18 I/O ports at [size=8] I/O ports at [size=4] I/O ports at [size=8] I/O ports at [size=4] I/O ports at ffa0 [size=16] Memory at 40000000 (32-bit, non-prefetchable) [disabled] [size=1K] IDE intialization error: (both 2.4.19pre7, and 2.4.18) PCI_IDE: unknown IDE controller on PCI bus 00 device f9,VID=8086,DID=248b PCI: Device 00:1f.1 not available because of resource collision PCI_IDE: (ide_setup_pci_device:) Could not enable device.