From owner-freebsd-current@FreeBSD.ORG Fri Feb 11 09:57:29 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 28FC616A4CF for ; Fri, 11 Feb 2005 09:57:29 +0000 (GMT) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.193]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7635443D41 for ; Fri, 11 Feb 2005 09:57:28 +0000 (GMT) (envelope-from marstrade@gmail.com) Received: by wproxy.gmail.com with SMTP id 36so338780wri for ; Fri, 11 Feb 2005 01:57:28 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=rMR1HChGDkT8qa2BT1rCRzByT63q6VMLj8Uz+uXslYVLf3S9iVjDDgg33sMGJJ9cWRYjWIkfesPuSc7Ues9CyVwTk0NL4z8pSa4X41+/5yaeJfGqLsaJyj/f7bp+N39IkzmQO1JTiNQVRFEtZdaVfyxTz3Ht8xvsRZwkKT8+I58= Received: by 10.54.17.42 with SMTP id 42mr65480wrq; Fri, 11 Feb 2005 01:57:27 -0800 (PST) Received: by 10.54.17.15 with HTTP; Fri, 11 Feb 2005 01:57:27 -0800 (PST) Message-ID: <71a906e0050211015750b8fb47@mail.gmail.com> Date: Fri, 11 Feb 2005 17:57:27 +0800 From: Mars Trading To: Rob In-Reply-To: <20050211031826.68199.qmail@web54007.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <20050211031826.68199.qmail@web54007.mail.yahoo.com> X-Mailman-Approved-At: Fri, 11 Feb 2005 13:10:29 +0000 cc: FreeBSD current cc: FreeBSD Stable Subject: Re: atapci VIA 82C596B UDMA66 controller: problem for 5.X ? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Mars Trading List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Feb 2005 09:57:29 -0000 Hey Rob, I'm on the same hardware - 82C596B (UDMA66) - but using a Seagate 20GB UDMA100 Drive. Relevant info from dmesg: atapci0: port 0xd000-0xd00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0 ata0: channel #0 on atapci0 ad0: 19092MB [38792/16/63] at ata0-master UDMA66 sysctl -a shows: hw.ata.ata_dma: 1 hw.ata.wc: 1 hw.ata.atapi_dma: 1 I'm using 5-stable now but didn't have problems when using 5.3-release. Flakey hardware? Dennis On Thu, 10 Feb 2005 19:18:26 -0800 (PST), 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" > -- Mars Trading 9620 Kamagong St., Makati, Manila, Philippines Phone: (632) 8952241 FAX: (632) 8996124 email: marstrade@gmail.com