From owner-freebsd-stable@FreeBSD.ORG Fri Feb 11 05:52:10 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B853B16A4CF for ; Fri, 11 Feb 2005 05:52:10 +0000 (GMT) Received: from linda-1.paradise.net.nz (bm-1a.paradise.net.nz [202.0.58.20]) by mx1.FreeBSD.org (Postfix) with ESMTP id D0A6B43D5C for ; Fri, 11 Feb 2005 05:52:09 +0000 (GMT) (envelope-from markir@paradise.net.nz) Received: from smtp-3.paradise.net.nz (smtp-3a.paradise.net.nz [202.0.32.196]) by linda-1.paradise.net.nz (Paradise.net.nz) with ESMTP id <0IBQ00BEXGAW8C@linda-1.paradise.net.nz> for freebsd-stable@freebsd.org; Fri, 11 Feb 2005 18:52:08 +1300 (NZDT) Received: from [192.168.1.11] (218-101-14-28.paradise.net.nz [218.101.14.28]) by smtp-3.paradise.net.nz (Postfix) with ESMTP id 13BEEAE439; Fri, 11 Feb 2005 18:52:08 +1300 (NZDT) Date: Fri, 11 Feb 2005 18:56:22 +1300 From: Mark Kirkwood In-reply-to: <20050211031826.68199.qmail@web54007.mail.yahoo.com> To: Rob Message-id: <420C4906.6030507@paradise.net.nz> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=us-ascii Content-transfer-encoding: 7bit X-Accept-Language: en-us, en User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20041016 References: <20050211031826.68199.qmail@web54007.mail.yahoo.com> cc: FreeBSD Stable Subject: Re: atapci VIA 82C596B UDMA66 controller: problem for 5.X ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Feb 2005 05:52:11 -0000 Rob, I am currently running 5.3 Release on a Tyan Trinity 400 (VIA 82C596B UDMA66) with 2 x Seagate Barracude IV (UDMA100) and have no stability issues. e.g from dmesg: atapci0: port 0xe000-0xe00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 ad0: 19092MB [38792/16/63] at ata0-master UDMA66 ad1: 19092MB [38792/16/63] at ata0-slave UDMA66 acd0: CDRW at ata1-master PIO4 What does your dmesg show if you dont force ata_dma=0? Hmmmm - you have an IBM disk in one pc and WDs in the other, hard to believe that the disks are the issue. Do both pcs have the same mobo? (if so what is it). Something else - did you upgrade from 4.x or fresh install? With respect to attempting a fix, you could try $ atacontrol mode 0 UDMA66 UDMA66 immediately after boot, to see if you can force a sensible transfer mode setting. regards Mark Rob wrote: > Hi, > > I have two PCs, with apparently a somewhat old > motherboard, since there's a maximum support for > UDMA66 by the harddisk controller. > The attached harddisks are newer and allow a > higher speed of UDMA100. > > This combination of older motherboard and newer > harddisk causes great problems with 5.X (it never > did with 4.X). I have irregular crashes of X and > even crashes at initial bootup. All this is solved > by using hw.ata.ata_dma="0", which forces the > harddisk to use the very low speed of PIO4 :(. > > Both PCs have a VIA 82C596B UDMA66 controller. > I wonder if that is the problem for 5.X ? > > On these two PCs, the output is of > grep -i ata /var/run/dmesg.boot > is: > > -- PC1 ------------------- > atapci0: port > 0xe000-0xe00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 > at device 7.1 on pci0 > ata0: channel #0 on atapci0 > ata1: channel #1 on atapci0 > ad0: 43979MB [89355/16/63] > at ata0-master PIO4 > acd0: CDROM at ata1-master PIO4 > > > -- PC2 ------------------- > atapci0: port > 0xc000-0xc00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 > at device 7.1 on pci0 > ata0: channel #0 on atapci0 > ata1: channel #1 on atapci0 > ad0: 76319MB > [155061/16/63] at ata0-master PIO4 > ad1: 16448MB [33420/16/63] at > ata0-slave PIO4 > acd0: CDRW at > ata1-master UDMA33 > > ------------------------------------------------- > > I consider this a serious drawback of 5.3. > > Any idea how this can be resolved? > > Best regards, > Rob. > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - Helps protect you from nasty viruses. > http://promotions.yahoo.com/new_mail > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >