From owner-freebsd-current Tue Oct 6 13:28:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA09809 for freebsd-current-outgoing; Tue, 6 Oct 1998 13:28:06 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from mail.elpost.com (DNS2.ELPOST.COM [193.15.1.52]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA09622 for ; Tue, 6 Oct 1998 13:28:01 -0700 (PDT) (envelope-from johan@granlund.nu) Received: from phoenix.granlund.nu (t3o29p3.telia.com [194.236.215.3]) by mail.elpost.com (2.5 Build 2626 (Berkeley 8.8.6)/8.8.4) with ESMTP id WAA00141; Tue, 06 Oct 1998 22:27:53 +0200 Received: from pegasys (pegasys.granlund.nu [192.168.0.2]) by phoenix.granlund.nu (8.9.1/8.9.1) with SMTP id WAA00311; Tue, 6 Oct 1998 22:15:42 +0200 (CEST) (envelope-from johan@phoenix.granlund.nu) Message-Id: <199810062015.WAA00311@phoenix.granlund.nu> From: "Johan Granlund" To: "Kenneth D. Merry" , dmlb@ragnet.demon.co.uk Date: Tue, 6 Oct 1998 22:15:21 +0200 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: Exabyte 8200 and CAM, Take 2 CC: freebsd-current@FreeBSD.ORG In-reply-to: <199810052246.QAA28339@panzer.plutotech.com> References: from Duncan Barclay at "Oct 5, 98 08:53:30 pm" X-mailer: Pegasus Mail for Win32 (v3.01a) Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Bingo That did it. I haven't tried to use the drive, but it survives the probe. I played around a little with the patch and found out that multi-lun is not a factor, but serial number requests is. Tried both with and without multi-lun support enabled on the controller and with only "CAM_QUIRK_SERIAL" in the quirkentry. With multilun support enabled the tape drive shows up on all luns in the bios probe, but only at lun 0 when probed by CAM as it should. Food for thought: The tapedrive survived the probe with (duncans) ncr controller but dies horrible with my adaptec 2940 one. /Johan > Duncan Barclay wrote... > > > > On 05-Oct-98 Johan Granlund wrote: > > > > > > [Long Snip] > > > > > > > > >> Strange, my Exabyte 8200 probes fine with no lockups, I have a NCR810 > > >> card. Current as of about 06:30GMT 2/10/98. Exabyte has same firmware > > >> as yours. > > > > Having now got some tapes for this drive it locks up when being _used_ > > under CAM. It probes fine though. > > It isn't surprising that y'all are having trouble with 8200's under CAM. > The tape driver needs some work before it will work around all the bugs in > all the old (and often broken) tape drives out there. > > Hopefully we'll be able to do something about it before 3.0, but for now, > just realize that it's a little broken. > > I've attached a patch to disable multi-lun probing and serial number > requests; that should allow the drive to at least probe properly. > > We'll probably end up disabling serial number inquiries and multi-lun > probing for all SCSI-1 devices. (need to adjust the transport layer quirk > mechanism to handle that, first) > > Ken > -- > Kenneth Merry > ken@plutotech.com > ___________________________________________________________ Internet: johan@granlund.nu I don't even speak for myself To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message