From owner-freebsd-scsi Mon Sep 7 10:43:19 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id KAA05268 for freebsd-scsi-outgoing; Mon, 7 Sep 1998 10:43:19 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from myhakas.matti.ee (myhakas.matti.ee [194.126.98.150]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id KAA05258 for ; Mon, 7 Sep 1998 10:43:08 -0700 (PDT) (envelope-from root@myhakas.matti.ee) Received: (from root@localhost) by myhakas.matti.ee (8.9.1/8.8.5) id UAA03314; Mon, 7 Sep 1998 20:42:48 +0300 (EEST) Message-ID: <19980907204248.43962@matti.ee> Date: Mon, 7 Sep 1998 20:42:48 +0300 From: Vallo Kallaste To: freebsd-scsi@FreeBSD.ORG Subject: ncr: frequent ccb errors and crashes Reply-To: vallo@matti.ee Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89i Organization: =?iso-8859-1?Q?AS_Matti_B=FCrootehnika?= Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello ! After switching completely to scsi, my machine crashes quite frequently, about 1 times for a week or so. What I can say is that this controller I have ( ASUS SC-875 ) caused similar problems in our cache server. I swapped this controller over to an Adaptec 2940UW and problems disappeared completely. Now I have this problematic controller inside my machine and here I go.. Our cache server has two Quantum Viking UW single-ended disks and previously had an ASUS SC-875 controller. Once for a week scsi subsystem crashed with messages shown: Jul 1 18:50:32 vanaema /kernel: ncr0: SCSI phase error fixup: CCB already dequeued (0xf0876800) Jul 1 18:50:45 vanaema /kernel: ncr0: timeout ccb=f08a8c00 (skip) Jul 1 18:50:45 vanaema /kernel: ncr0: timeout ccb=f089f000 (skip) Jul 1 18:50:50 vanaema /kernel: ncr0: timeout ccb=f089f400 (skip) Machine usually stayed up, because system slices are on the one EIDE disk, but cache (squid) area rendered completely unusable. For cache machine I have no other comments, because I swapped controller quickly. My own machine has two Quantum Viking II UW single-ended disks and no IDE devices at all for now. Similar symptoms appeared as before, with one exception - my machine crashes completely. I checked logs, but no messages related to scsi. I have not written down panic messages yet, because maybe this problem is known incompatability between Quantum drives and Sym.Logic controllers ? I think so, because with Adaptec controller all this just works. Can somebody comment this closely or give some guidelines ? I have written to the -questions list about month ago, but have no answer. I don't have any specific ncr driver options set. >From dmesg: ncr0: rev 0x03 int a irq 9 on pci0.9.0 ncr0: waiting for scsi devices to settle scbus0 at ncr0 bus 0 cd0 at scbus0 target 0 lun 0 cd0: type 5 removable SCSI 2 cd0: CD-ROM cd0: 10.0 MB/s (100 ns, offset 16) can't get the size sd0 at scbus0 target 5 lun 0 sd0: type 0 fixed SCSI 2 sd0: Direct-Access sd0: WIDE SCSI (16 bit) enabled sd0: 40.0 MB/s (50 ns, offset 16) 4350MB (8910423 512 byte sectors) sd1 at scbus0 target 6 lun 0 sd1: type 0 fixed SCSI 2 sd1: Direct-Access sd1: WIDE SCSI (16 bit) enabled sd1: 40.0 MB/s (50 ns, offset 16) 4350MB (8910423 512 byte sectors) Please cc: directly to me, I'm not subscribed to -scsi list. Thanks Vallo Kallaste vallo@matti.ee To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message