From owner-freebsd-hardware Thu Aug 2 8:42:54 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 4995B37B403 for ; Thu, 2 Aug 2001 08:42:51 -0700 (PDT) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.3/8.9.3) with ESMTP id LAA14504; Thu, 2 Aug 2001 11:42:49 -0400 (EDT) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.11.3/8.9.1) id f72FgKM05923; Thu, 2 Aug 2001 11:42:20 -0400 (EDT) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15209.29916.355786.776966@grasshopper.cs.duke.edu> Date: Thu, 2 Aug 2001 11:42:20 -0400 (EDT) To: Sean Lewis Cc: freebsd-hardware@freebsd.org Subject: Re: UDMA problems w/ 4.3-STABLE In-Reply-To: <20010731192625.A14945@typhoon.sharp.com> References: <20010731192625.A14945@typhoon.sharp.com> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Sean Lewis writes: > > ad4s1a: UDMA ICRC error reading fsbn 282735839 of 141367888-141368143 > (ad4s1 bn 282735839; cn 30950 tn 120 sn 29) falling back to PIO mode > > and the drive falls into PIO mode. I've tried changing to a higher > quality / longer cable.. same result. I haven't found any hard evidence Have you tried re-routing the cable to avoid noise and or interference? I just got a new IBM drive (IC35L040AVER07-0) for my alpha on Monday & I was getting those errors all the time when the disk was under heavy load. I moved the disk to a different drive bay & routed the IDE cable as far as possible from both the CPU and the power-supply. I haven't seen any problem for over two days. Hope this helps you, Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message