From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 29 Sep 2002 09:39:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 29 Sep 2002 09:39:54 -0400 Received: from twilight.ucw.cz ([195.39.74.230]:37506 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id ; Sun, 29 Sep 2002 09:39:53 -0400 Date: Sun, 29 Sep 2002 15:45:11 +0200 From: Vojtech Pavlik To: Stephan Maciej Cc: linux-kernel@vger.kernel.org Subject: Re: Startup: "DMA disabled" on VIA vt82c686b IDE UDMA100, Kernel 2.5.38 Message-ID: <20020929154511.A10879@ucw.cz> References: <200209270313.20670.stephan@maciej.muc.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200209270313.20670.stephan@maciej.muc.de>; from stephan@maciej.muc.de on Fri, Sep 27, 2002 at 03:13:20AM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 27, 2002 at 03:13:20AM +0200, Stephan Maciej wrote: > I just managed to compile and boot a 2.5.38 kernel on my Sony Vaio Laptop. I > run the kernel for about half an hour now, XWindows, KDE working fine, even > my USB mouse is working -- but I can't use my touchpad in parallel... :-( What's the problem with the touchpad exactly? > Nevertheless, great work so far. But I have found this in my startup dmesg: > > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > VP_IDE: IDE controller at PCI slot 00:07.1 > VP_IDE: chipset revision 6 > VP_IDE: not 100% native mode: will probe irqs later > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:07.1 > ide0: BM-DMA at 0x1c40-0x1c47, BIOS settings: hda:DMA, hdb:pio > ide1: BM-DMA at 0x1c48-0x1c4f, BIOS settings: hdc:DMA, hdd:pio > hda: HITACHI_DK23CA-20, ATA DISK drive > hda: DMA disabled > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > hdc: QSI DVD-ROM SDR-081, ATAPI CD/DVD-ROM drive > hdc: DMA disabled > ide1 at 0x170-0x177,0x376 on irq 15 > hda: host protected area => 1 > hda: 39070080 sectors (20004 MB) w/2048KiB Cache, CHS=2432/255/63, UDMA(100) > hda: hda1 hda2 hda3 > hdc: ATAPI 61X DVD-ROM drive, 512kB Cache, UDMA(33) > > [ Ahem, well, my DVD ROM drive was supposed to be 24x CD/8x DVD, but that's > okay. ] > > /proc/ide/via says that my HD is running UDMA100 and my 61x ;-) DVD-ROM runs > UDMA33. As a hdparm -t -T tells me about 150Mb/sec throughput (buffered) and > 20Mb/sec (disk) reads, I suppose BMDMA is really on. > > Why does this message appear then? Its disabled only during boot. -- Vojtech Pavlik SuSE Labs