From owner-freebsd-questions Wed Nov 1 10:57:18 2000 Delivered-To: freebsd-questions@freebsd.org Received: from berzerk.gpcc.itd.umich.edu (berzerk.gpcc.itd.umich.edu [141.211.2.162]) by hub.freebsd.org (Postfix) with ESMTP id 6C0C437B692 for ; Wed, 1 Nov 2000 10:57:12 -0800 (PST) Received: from breakout.gpcc.itd.umich.edu (smtp@breakout.gpcc.itd.umich.edu [141.211.2.141]) by berzerk.gpcc.itd.umich.edu (8.8.8/4.3-mailhub) with ESMTP id NAA20563; Wed, 1 Nov 2000 13:57:11 -0500 (EST) Received: from localhost (timcm@localhost) by breakout.gpcc.itd.umich.edu (8.8.8/5.1-client) with ESMTP id NAA01653; Wed, 1 Nov 2000 13:57:10 -0500 (EST) Date: Wed, 1 Nov 2000 13:57:10 -0500 (EST) From: Tim McMillen X-Sender: timcm@breakout.gpcc.itd.umich.edu To: Arcady Genkin Cc: freebsd-questions@FreeBSD.ORG Subject: Re: ad0: DMA problem fallback to PIO mode; HARD READ ERROR blk# 25418687 In-Reply-To: <87d7gf35ff.fsf@tea.thpoon.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Yeah that makes it a good likelihood that it is the controller. Are there two IDE controllers on your motherboard? Try the other one. Or see if you can borrow a pci card controller to test the drive with. Or just put the drive in somebody elses computer and boot with a boot floppy to see if the drive works there. Then let us know. Luckily IDE controllers are very cheap. So you can add another and disable the original. Tim On 1 Nov 2000, Arcady Genkin wrote: > I just replaced a hard drive in one computer, because the previous one > died last night. (It was a 3.5 years old WD, so I thought that it had > to happen). Well, I was getting these errors with the previous > harddrive. Now I completely reinstalled the system, and I'm getting > same error messages with the new one. > > ad0: HARD READ ERROR blk# 25418671 > ad0: DMA problem fallback to PIO mode > ad0: HARD READ ERROR blk# 25418687 status=59 error=40 > ad0: DMA problem fallback to PIO mode > ad0: HARD READ ERROR blk# 25418687 status=59 error=40 > ad0: HARD READ ERROR blk# 25418687 status=59 error=40 > > After these errors the box just rebooted. This looks scary. Could it > be the controller? The box is an older P166, running 4.1.1-S. > > I don't quite believe in coinsidence of identical problems happening > to successive hard drives. The new one is a very nice 13G IBM > DeskStar 7200rpm, 2Mb cache. > > Any ideas? > Many thanks, > -- > Arcady Genkin > Don't read everything you believe. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message