From owner-freebsd-bugs Mon Apr 8 7: 0:11 2002 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id 94F1137B41A for ; Mon, 8 Apr 2002 07:00:03 -0700 (PDT) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.6/8.11.6) id g38E03k26283; Mon, 8 Apr 2002 07:00:03 -0700 (PDT) (envelope-from gnats) Received: from mail.nsu.ru (mx.nsu.ru [193.124.215.71]) by hub.freebsd.org (Postfix) with ESMTP id 6970137B419 for ; Mon, 8 Apr 2002 06:50:35 -0700 (PDT) Received: from regency.nsu.ru ([193.124.210.26]) by mail.nsu.ru with esmtp (Exim 3.20 #1) id 16uZXQ-00042l-00 for FreeBSD-gnats-submit@freebsd.org; Mon, 08 Apr 2002 20:50:28 +0700 Received: (from danfe@localhost) by regency.nsu.ru (8.11.6/8.11.6) id g38DpEY46039; Mon, 8 Apr 2002 20:51:14 +0700 (NOVST) (envelope-from danfe) Message-Id: <200204081351.g38DpEY46039@regency.nsu.ru> Date: Mon, 8 Apr 2002 20:51:14 +0700 (NOVST) From: Alexey Dokuchaev Reply-To: Alexey Dokuchaev To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: kern/36876: Weird read-errors while accessing data from CD-C68E 6 CD changer(s) attached to secondary channel of Intel ICH2 ATA100 controller Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >Number: 36876 >Category: kern >Synopsis: Weird read-errors while accessing data from CD-C68E 6 CD changer(s) attached to secondary channel of Intel ICH2 ATA100 controller >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Apr 08 07:00:02 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Alexey Dokuchaev >Release: FreeBSD 4.5-STABLE i386 >Organization: CNIT NSU >Environment: System: FreeBSD regency.nsu.ru 4.5-STABLE FreeBSD 4.5-STABLE #0: Wed Mar 20 18:57:15 NOVT 2002 root@regency.nsu.ru:/usr/src/sys/compile/REGENCY i386 >Description: OK, here we go :(( I have two of those CD-C68E changers attached as mas/sla of secondary channel on my Gigabyte GA-6OXET motherboard, which has Intel ICH2 ATA100 controller onboard. Occasionally, I need to copy contents of 12 CDROMs (inserted into the changers) to SMBFS-mounted share. It takes about 2.5 hours to complete, that is, about 25 minutes per CD. The CDs are cd9660 data ones, but I think it does not matter much here. When I look at console, I get several of these from kernel: acd6-11: READ_BIG - ILLEGAL REQUEST asc=21 ascq=00 error=04 vm_fault: pager read error, pid 47621 (cp) They are coming from both acd6-11 and acd0-5, with about the same frequency. I've had this problem before, on GA-6OXT motherboard, with [different] ICH ATA66 controller, exactly the same thing. However, changers seem to work just fine. They did so on the GA-6OXT under Windoze NT 4.0, and they do work perfectly under FreeBSD-STABLE, but on AMD/VIA hardware instead of Intel. I don't think I can blame the CD changers for misbehavior. The bug(?) occurs both on STABLE as of prior to Mar 16 (Soren's ATA commit); I've last had it on STABLE as of Dec 6, 2001, and afterwards build. What worries me most, it's that I really don't have an idea whether it's caused by software or hardware failure. >How-To-Repeat: I think I've told you enough in "Description" section already ;-) >Fix: None known to me. If you need any debug info, I think I might get some, however, it's a production box, so I can't stress it real hard and for real long periods of time for experiments. Those messages are not comming when you just summon them :-( >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message