Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 2 Jun 2002 16:04:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 2 Jun 2002 16:04:52 -0400 Received: from daimi.au.dk ([130.225.16.1]:4359 "EHLO daimi.au.dk") by vger.kernel.org with ESMTP id ; Sun, 2 Jun 2002 16:04:52 -0400 Message-ID: <3CFA7A61.8A8EE382@daimi.au.dk> Date: Sun, 02 Jun 2002 22:04:49 +0200 From: Kasper Dupont Organization: daimi.au.dk X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.9-31smp i686) X-Accept-Language: en MIME-Version: 1.0 To: Linux-Kernel CC: Alan Cox Subject: IDE DMA problem in -ac kernels Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm having problems with enabling DMA on my HD in the latest -ac kernels. I just spotted the problem in 2.4.19-pre9-ac3, but the problem is also there in 2.4.19-pre8-ac5. However it there are no problems in 2.4.19-pre8-ac1. When booting -pre8-ac1 DMA is automatically enabled on hda, and it works at the expected speed. When booting the later kernels DMA is not enabled. When typing hdparm -d1 /dev/hda the HD LED stays on and all access to the HD hangs. I used the same .config for both -pre8-ac1 and -pre8-ac5. There are no unusual messages about IDE DMA in my log. Here are the messages printed during boot: Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx ALI15X3: IDE controller on PCI bus 00 dev 78 PCI: Assigned IRQ 11 for device 00:0f.0 ALI15X3: chipset revision 32 ALI15X3: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA hda: IC35L040AVER07-0, ATA DISK drive hdb: CREATIVEDVD-ROM DVD2240E 03/18/98, ATAPI CD/DVD-ROM drive hdc: CR-4802TE, ATAPI CD/DVD-ROM drive hdd: IBM-DTTA-351680, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 66055248 sectors (33820 MB) w/1916KiB Cache, CHS=4111/255/63, (U)DMA hdd: 33022080 sectors (16907 MB) w/462KiB Cache, CHS=32760/16/63, (U)DMA Partition check: hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 hda9 > hdd: [PTBL] [2055/255/63] hdd1 hdd2 hdd4 < hdd5 hdd6 hdd7 hdd8 > -- Kasper Dupont -- der bruger for meget tid p? usenet. For sending spam use mailto:razor-report@daimi.au.dk - 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/