Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 10 Aug 2002 22:21:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 10 Aug 2002 22:21:12 -0400 Received: from zooty.lancs.ac.uk ([148.88.16.231]:49625 "EHLO zooty.lancs.ac.uk") by vger.kernel.org with ESMTP id ; Sat, 10 Aug 2002 22:21:11 -0400 Content-Type: text/plain Content-Disposition: inline Content-Transfer-Encoding: binary MIME-Version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) From: steveb@unix.lancs.ac.uk Date: Sun, 11 Aug 2002 03:24:57 +0100 Subject: Re: 2.4.19 IDE Partition Check issue (again) To: linux-kernel@vger.kernel.org Message-Id: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1960 Lines: 40 Sorry if this is an old issue, but I'm still seeing this problem between ALI15x3 and Maxtor drives when DMA is enabled... If I run 2.4.19 DMA is not autodetected. I get lousy performance. I can enable DMA (with hdparm) on all but my Maxtor drive, but if I manually enable DMA on the Maxtor drive disk access freezes (to both drives on the channel). If I run 2.4.19-ac4 DMA is turned on automatically and the system hangs at the partition check. on 2.4.19 I see this in dmesg: ... 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 20 PCI: No IRQ known for interrupt pin A of device 00:04.0. Please try using pci=biosirq. ALI15X3: chipset revision 196 ALI15X3: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xb400-0xb407, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xb408-0xb40f, BIOS settings: hdc:DMA, hdd:DMA hda: ST340016A, ATA DISK drive hdb: Maxtor 4G120J6, ATA DISK drive hdc: RICOH DVD/CDRW MP9120, ATAPI CD/DVD-ROM drive hdd: IBM-DPTA-372050, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63 hdb: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=14946/255/63 hdd: 40088160 sectors (20525 MB) w/1961KiB Cache, CHS=39770/16/63, UDMA(66) ide-floppy driver 0.99.newide Partition check: /dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 p7 > /dev/ide/host0/bus0/target1/lun0: p1 /dev/ide/host0/bus1/target1/lun0: [PTBL] [2495/255/63] p1 2.4.19-ac4 (correctly) probes hda and hdb as being UDMA(100), but it looks like hdb chokes on the DMA... Steve Bennett - 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/