From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263018AbTJaFHK (ORCPT ); Fri, 31 Oct 2003 00:07:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263024AbTJaFHK (ORCPT ); Fri, 31 Oct 2003 00:07:10 -0500 Received: from out2.smtp.messagingengine.com ([66.111.4.26]:8840 "EHLO out2.smtp.messagingengine.com") by vger.kernel.org with ESMTP id S263018AbTJaFHE convert rfc822-to-8bit (ORCPT ); Fri, 31 Oct 2003 00:07:04 -0500 Content-Disposition: inline Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="Big5" MIME-Version: 1.0 X-Mailer: MIME::Lite 1.2 (F2.71; T1.001; A1.51; B2.12; Q2.03) From: "CN" To: linux-kernel@vger.kernel.org Date: Thu, 30 Oct 2003 21:04:39 -0800 X-Epoch: 1067576679 X-Sasl-enc: k8AMlAd9gRHTGCg7wkCTOw Subject: Re: kernel: i8253 counting too high! resetting.. References: <20031029075010.596C57A6C6@smtp.us2.messagingengine.com> <20031030171235.GA59683@teraz.cwru.edu> In-Reply-To: <20031030171235.GA59683@teraz.cwru.edu> Message-Id: <20031031050439.E03B17E2B8@smtp.us2.messagingengine.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Thank you a lot! > > entries in syslog from kernel 2.4.22 upgraded from Debian woody (gcc > > 2.95.4) running on AMD K6II 450MHz with 64MB RAM. I don't have such > > problem in kernel 2.4.20 upgraded from Slackware (gcc 2.95.3) running on > > another box with the identical CPU and main board (but with 192MB RAM). > > Does this message hurt anything? > > Can you please provide additional details about your hardware? > What kind of main board are you using, and what southbridge? Now I found that the two boards are slightly different. The printings on the biggest 2 chips on the problematic board are: ALi M1542 A1 100MHz 9949 TS05 ALi M1543C B1 9947 TM07 respectively. While the board having no i8253 messages has the chips: ALi M1542 A1 100MHz 9937 TS05 ALi M1543C B1 0002 TM05 > What is the reported latency of your IDE interface? Sorry! I don't quite understand the meanings! I am trying to report all I know about. dmesg on the problematic box shows: Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx hda: FUJITSU MPE3064AT, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: attached ide-disk driver. hda: 12672450 sectors (6488 MB) w/512KiB Cache, CHS=13410/15/63 Partition check: hda: [PTBL] [788/255/63] hda1 One thing I want to mention here is that this disk supports 66MHz DMA access according to Fjuitsu's whitepaper. OTOH, the board running kernel 2.4.20 reports: 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 10 for device 00:0f.0 ALI15X3: chipset revision 194 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: Maxtor 91021U2, ATA DISK drive ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx hdc: Maxtor 91021U2, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 blk: queue c02c60a4, I/O limit 4095Mb (mask 0xffffffff) hda: 20010816 sectors (10246 MB) w/512KiB Cache, CHS=1245/255/63, UDMA(66) blk: queue c02c6408, I/O limit 4095Mb (mask 0xffffffff) hdc: 20010816 sectors (10246 MB) w/512KiB Cache, CHS=19852/16/63, UDMA(66) Partition check: hda: hda1 hdc: [PTBL] [1245/255/63] hdc1 which looks to me that it supports DMA 66 as expected. I set the bios' of these 2 boxes to the same parameters related to IDE in menu "Integrated Peripherals". Best Regards, CN -- http://www.fastmail.fm - And now for something completely different…