From owner-freebsd-bugs Sun Jun 6 16:20: 7 1999 Delivered-To: freebsd-bugs@freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.ORG [204.216.27.21]) by hub.freebsd.org (Postfix) with ESMTP id 1237014D3D for ; Sun, 6 Jun 1999 16:20:02 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.9.3/8.9.2) id QAA61429; Sun, 6 Jun 1999 16:20:01 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from slarti.muc.de (slarti.muc.de [193.149.48.10]) by hub.freebsd.org (Postfix) with SMTP id DA7AA14BD4 for ; Sun, 6 Jun 1999 16:14:12 -0700 (PDT) (envelope-from jhs@jhs.muc.de) Received: (qmail 28667 invoked from network); 6 Jun 1999 23:13:32 -0000 Received: from jhs.muc.de (193.149.49.84) by slarti.muc.de with SMTP; 6 Jun 1999 23:13:32 -0000 Received: (from jhs@localhost) by jhs.muc.de (8.9.3/8.9.3) id XAA03419; Sun, 6 Jun 1999 23:02:19 GMT (envelope-from jhs) Message-Id: <199906062302.XAA03419@jhs.muc.de> Date: Sun, 6 Jun 1999 23:02:19 GMT From: "Julian H. Stacey Jhs@jhs.muc.de Jhs" Reply-To: jhs@freebsd.org To: FreeBSD-gnats-submit@freebsd.org Cc: nclayton@lehman.com, stuart@jhs.muc.de, gary@jhs.muc.de X-Send-Pr-Version: 3.2 Subject: kern/12062: sa tape driver with Cipher 60M SCSI QIC tape drive on 3.2 is droping last 10K block. Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org >Number: 12062 >Category: kern >Synopsis: sa tape driver with Cipher 60M SCSI QIC tape drive on 3.2 is droping last 10K block. >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Jun 6 16:20:01 PDT 1999 >Closed-Date: >Last-Modified: >Originator: Julian H. Stacey jhs@jhs.muc.de >Release: FreeBSD 3.2-RELEASE i386 >Organization: >Environment: - >Description: I had intended to file a bland Category: docs "please add to docu that this drive still works on 3.2" But Not So It seems the driver software has been srambled, & last blocks are dropped on write ! Cipher tape drive Model 540 (Capacity: QIC 45M 60M tapes, Interface: SCSI 1) dmesg reports it as: Jun 6 18:48:17 wall /kernel: sa0 at aha0 bus 0 target 3 lun 0 Jun 6 18:48:17 wall /kernel: sa0: < > Removable Sequential Access SCSI-CCS device Jun 6 18:48:17 wall /kernel: sa0: 3.300MB/s transfers It started to read a tape OK, that I created 1996.01.16 on BSD (but I got impatient & didnt read whole tape, as I control C'd it, as I thought I was just verifying then) On writing a 7.7M directory with tar cvf /dev/rsa0 . at end it reported tar: only wrote 0 of 10240 bytes to /dev/rsa0 On reading same tape tar: Unexpected EOF on archive file On comparing directories, last file was different, to compare directories I used find . -type f -exec cmpd -d -v {} ../../public_html \; ( cmpd.c is written by me (compare & delete), available on http://www.freebsd.org/~jhs/src/bsd/jhs/bin/public/cmpd/ ) Historical note: This is one of the same drive type I had listed as working in From: burgess@hrd769.brooks.af.mil (Dave Burgess) Date: 13 Jan 1994 06:00:46 -0000 Newsgroups: comp.os.386bsd.announce,comp.answers,news.answers Subject: [comp.os.386bsd] BNR/2 derived BSD for PCs FAQ (Part 9 of 10) Message-ID: <386bsd-faq-9-758440818@hrd769.brooks.af.mil> Archive-name: 386bsd-faq/part9 >How-To-Repeat: I do not know if this problem materialises on other drives & densities, I have others (Tandberg & Prime 60M ) & will try them, didn't notice this on my Tandberg 525M drive. >Fix: Driver software needs fixing, meantime: Always append 10K of garbage file as last item in a tar write (this is the same horrible trick I used many years ago, that became un-necessary years ago, & now is back again - Uugh ! :-) >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message