From owner-freebsd-questions Wed May 1 15:35:47 2002 Delivered-To: freebsd-questions@freebsd.org Received: from nycsmtp3out.rdc-nyc.rr.com (nycsmtp3out.rdc-nyc.rr.com [24.29.99.228]) by hub.freebsd.org (Postfix) with ESMTP id A704137B416 for ; Wed, 1 May 2002 15:35:43 -0700 (PDT) Received: from nyc.rr.com (24-168-24-239.nyc.rr.com [24.168.24.239]) by nycsmtp3out.rdc-nyc.rr.com (8.12.1/Road Runner SMTP Server 1.0) with SMTP id g41MaRFa022776; Wed, 1 May 2002 18:36:28 -0400 (EDT) Date: Wed, 1 May 2002 19:44:53 -0500 From: Scott Robbins To: Patrik ?str?m Cc: freebsd-questions@FreeBSD.ORG Subject: Re: DMA problem fallback to PIO mode Message-ID: <20020502004453.GA2338@scott2.homeunix.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.28i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, May 02, 2002 at 12:23:03AM +0200, Patrik ?str?m wrote: > Hi!, > > Om getting this on one of my drives, Any chance that this is only the IDE > cable ?.. > > Regards > Patrik Astrom > > May 1 22:02:31 samuraj /kernel: ad1: DMA problem fallback to PIO mode > May 1 22:02:31 samuraj last message repeated 5 times > May 1 22:02:36 samuraj /kernel: ad1c: hard error reading fsbn 5166192 of > 258304 > 0-2583295 (ad1 bn 5166192; cn 5125 tn 3 sn 3) status=59 error=40 > May 1 22:02:36 samuraj /kernel: ad1: DMA problem fallback to PIO mode > May 1 22:02:41 samuraj /kernel: ad1c: hard error reading fsbn 5166688 of > 258329 This is a common problem. 9 times out of 10, it can be fixed by replacing your IDE cable with shielded 80 pin ATA 100 IDE cables. It's not in the Faq--it is mentioned in man ATA (However, I didn't know to look there, but was told by the writer of man ATA that I should) :) HTH Scott Robbins To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message