From nobody@FreeBSD.org Mon Sep 24 15:02:31 2001 Return-Path: Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 07F8737B41B for ; Mon, 24 Sep 2001 15:02:31 -0700 (PDT) Received: (from nobody@localhost) by freefall.freebsd.org (8.11.4/8.11.4) id f8OM2VH74080; Mon, 24 Sep 2001 15:02:31 -0700 (PDT) (envelope-from nobody) Message-Id: <200109242202.f8OM2VH74080@freefall.freebsd.org> Date: Mon, 24 Sep 2001 15:02:31 -0700 (PDT) From: Justin Kolb To: freebsd-gnats-submit@FreeBSD.org Subject: ata UMDA problem X-Send-Pr-Version: www-1.0 >Number: 30801 >Category: i386 >Synopsis: ata UMDA problem >Confidential: no >Severity: non-critical >Priority: low >Responsible: sos >State: closed >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 24 15:10:01 PDT 2001 >Closed-Date: Wed Dec 12 06:08:41 PST 2001 >Last-Modified: Wed Dec 12 06:11:52 PST 2001 >Originator: Justin Kolb >Release: 4.4 >Organization: >Environment: FreeBSD wakko.nutzy.net 4.4-RELEASE FreeBSD 4.4-RELEASE #0: Tue Sep 18 11:57:08 PDT 2001 murray@builder.FreeBSD.org:/usr/src/sys/compile/GENERIC i386 >Description: ASUS P5A (UDMA 33 support) + Western Digital WD136AA (UDMA 66/33 drive) + 40 PIN cable Large number of ICRC errors followed by a drop down to PIO4 mode. UDMA mode 2 is successfully detected in the bios for the drive during a verbose boot. Attempts to prove it was a hardware/setup problem involved many tests with combinations of the following things: 1.) Switching between AUTO DMA and forced DMA in the BIOS 2.) Setting UDMA 33 on the drive (wasn't set in earlier tests). 3.) Swapping different 40-pin cables 4.) Running full Western Digitial diagnostic suite on drive (all OK) Note I also had this problem under 4.3 (I believe the error message has changed though). >How-To-Repeat: >Fix: Setting sysctl hw.atamodes to force PIO mode at startup, this still results in a few ICRC errors prior to the execution of this command during bootup. >Release-Note: >Audit-Trail: From: "David Xu" To: , Cc: Subject: Re: i386/30801: ata UMDA problem Date: Thu, 27 Sep 2001 10:03:46 +0800 This is a multi-part message in MIME format. ------=_NextPart_000_00B1_01C1473B.B26E2510 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: quoted-printable It seems you have a bad cable or bad harddisk. -- David Xu ------=_NextPart_000_00B1_01C1473B.B26E2510 Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable
It seems you have a bad cable or bad=20 harddisk.
 
--
David Xu
 
------=_NextPart_000_00B1_01C1473B.B26E2510-- Responsible-Changed-From-To: freebsd-bugs->sos Responsible-Changed-By: kris Responsible-Changed-When: Thu Oct 4 22:56:31 PDT 2001 Responsible-Changed-Why: Over to the ATA maintainer http://www.FreeBSD.org/cgi/query-pr.cgi?pr=30801 State-Changed-From-To: open->closed State-Changed-By: sos State-Changed-When: Wed Dec 12 06:08:41 PST 2001 State-Changed-Why: I'm pretty certain this is due to bad hardware. Try a new cable if that doesn't help try a 80pin cable that helps in situations where noise is the killer. Also remember that an ATA cable shall not be longer than 18" (45cm), this is important... http://www.FreeBSD.org/cgi/query-pr.cgi?pr=30801 >Unformatted: