From owner-freebsd-stable@FreeBSD.ORG Tue May 5 14:03:12 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F6901065670 for ; Tue, 5 May 2009 14:03:12 +0000 (UTC) (envelope-from terry@tmk.com) Received: from server.tmk.com (server.tmk.com [204.141.35.63]) by mx1.freebsd.org (Postfix) with ESMTP id 0C26C8FC1E for ; Tue, 5 May 2009 14:03:11 +0000 (UTC) (envelope-from terry@tmk.com) Received: from tmk.com by tmk.com (PMDF V6.3-x13 #37010) id <01N8L78DEKCG003G45@tmk.com> for freebsd-stable@freebsd.org; Tue, 05 May 2009 09:40:27 -0400 (EDT) Date: Tue, 05 May 2009 09:35:11 -0400 (EDT) From: terry+freebsd-stable@tmk.com Sender: Terry Kennedy To: freebsd-stable@freebsd.org Message-id: <01N8L7H5796S003G45@tmk.com> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=us-ascii Subject: Regression in SCSI tape detection at boot in 7.2-RELEASE? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 May 2009 14:03:12 -0000 Sometime between the 7.2-PRERELEASE cycle started and 7.2-RELEASE, boot-time probing of tape drives (at least a Quantum DLT8000 and a Quantum SDLT600) started generating error messages, such as these: ahc1: port 0xd800-0xd8ff mem 0xfe1fe000-0xfe1fefff irq 25 at device 1.1 on pci2 ahc1: [ITHREAD] aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs ... Waiting 5 seconds for SCSI devices to settle (probe21:ahc1:0:6:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 (probe21:ahc1:0:6:0): CAM Status: SCSI Status Error (probe21:ahc1:0:6:0): SCSI Status: Check Condition (probe21:ahc1:0:6:0): UNIT ATTENTION asc:29,2 (probe21:ahc1:0:6:0): SCSI bus reset occurred (probe21:ahc1:0:6:0): Retrying Command (per Sense Data) (probe21:ahc1:0:6:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 (probe21:ahc1:0:6:0): CAM Status: SCSI Status Error (probe21:ahc1:0:6:0): SCSI Status: Check Condition (probe21:ahc1:0:6:0): UNIT ATTENTION asc:28,0 (probe21:ahc1:0:6:0): Not ready to ready change, medium may have changed (probe21:ahc1:0:6:0): Retrying Command (per Sense Data) sa0 at ahc1 bus 0 target 6 lun 0 sa0: Removable Sequential Access SCSI-4 device sa0: 160.000MB/s transfers (80.000MHz DT, offset 120, 16bit) This is happening for both stand-alone and loader drives, regardless of whether there is a tape in the drive at boot time. There is no problem with using the drive - no further messages are log- ged and the drive operates properly. Does anyone have any idea what is causing this, and where I should look to try to track it down? Terry Kennedy http://www.tmk.com terry@tmk.com New York, NY USA