NetBSD Problem Report #2155
From gnats Fri Mar 1 14:57:19 1996
Received: from phop5.physik.uni-bonn.de by pain.lcs.mit.edu (8.7.4/8.6.12) with ESMTP id OAA13495 for <gnats-bugs@gnats.netbsd.org>; Fri, 1 Mar 1996 14:44:08 -0500 (EST)
Message-Id: <199603011944.UAA11064@phop5.physik.uni-bonn.de>
Date: Fri, 1 Mar 1996 20:44:03 +0100 (MET)
From: Klaus Helbing <helbing@phop5.physik.uni-bonn.de>
Reply-To: helbing@phop5.physik.uni-bonn.de
To: gnats-bugs@gnats.netbsd.org
Subject: Exabyte 8505 read/write of compressed high density tapes
X-Send-Pr-Version: 3.95
>Number: 2155
>Category: kern
>Synopsis: Exabyte 8505 read/write of compressed high density tapes
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: bouyer
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Mar 01 15:05:02 +0000 1996
>Closed-Date:
>Last-Modified: Wed Mar 24 20:45:42 +0000 2004
>Originator: Klaus Helbing
>Release: 19960207
>Organization:
Physikalisches Institut Uni Bonn
>Environment:
System: NetBSD phop5.physik.uni-bonn.de 1.1A NetBSD 1.1A (PHOP) #0: Wed Feb 7 15:50:38 MET 1996 helbing@phop5.physik.uni-bonn.de:/usr/src/sys/arch/i386/compile/PHOP i386
>Description:
Rewriting of Exabyte tapes -- previously inscribed (by e.g. a
DECstation) in compressed 8500-Exabyte format --- fails even when
trying to write uncompressed.
Writing of new Exabyte tapes in compressed 8500 format fails.
Reason: According to device manual of my exabyte the various formats
correspond to the following density codes:
8500 normal : 0x00
8500 compressed : 0x8c
8500 compressed : 0x90
8500 normal : 0x14
But /sys/scsi/st.c says
#define SCSI_2_MAX_DENSITY_CODE 0x17 /* maximum density code specified
* in SCSI II spec. */
>How-To-Repeat:
see description but repetition is not recommendable because of time
outs that lead to system crash!
>Fix:
Make the following devices where /dev/*st0l stands for 8500 normal,
/dev/*st0h 8500 compressed, /dev/*st0m EXB-8200 format compressed,
/dev/*st0a 8200 normal.
crw-rw---- 1 root operator 14, 3 Nov 24 15:16 /dev/enrst0
crw-rw-r-- 1 root wheel 14, 15 Jan 9 18:19 /dev/enrst0a
crw-rw-r-- 1 root wheel 14, 7 Jan 9 18:18 /dev/enrst0h
crw-rw-r-- 1 root wheel 14, 3 Jan 9 18:18 /dev/enrst0l
crw-rw-r-- 1 root wheel 14, 11 Jan 9 18:19 /dev/enrst0m
brw-rw---- 1 root operator 5, 3 Nov 24 15:16 /dev/enst0
brw-rw-r-- 1 root wheel 5, 15 Jan 9 18:20 /dev/enst0a
brw-rw-r-- 1 root wheel 5, 7 Jan 9 18:19 /dev/enst0h
brw-rw-r-- 1 root wheel 5, 3 Jan 9 18:19 /dev/enst0l
brw-rw-r-- 1 root wheel 5, 11 Jan 9 18:19 /dev/enst0m
crw-rw---- 1 root operator 14, 2 Nov 24 15:16 /dev/erst0
crw-rw-r-- 1 root wheel 14, 14 Jan 9 18:24 /dev/erst0a
crw-rw-r-- 1 root wheel 14, 6 Jan 9 18:23 /dev/erst0h
crw-rw-r-- 1 root wheel 14, 2 Jan 9 18:23 /dev/erst0l
crw-rw-r-- 1 root wheel 14, 10 Jan 9 18:23 /dev/erst0m
brw-rw---- 1 root operator 5, 2 Nov 24 15:16 /dev/est0
brw-rw-r-- 1 root wheel 5, 14 Jan 9 18:24 /dev/est0a
brw-rw-r-- 1 root wheel 5, 6 Jan 9 18:24 /dev/est0h
brw-rw-r-- 1 root wheel 5, 2 Jan 9 18:24 /dev/est0l
brw-rw-r-- 1 root wheel 5, 10 Jan 9 18:24 /dev/est0m
crw-rw---- 1 root operator 14, 1 Nov 24 15:16 /dev/nrst0
crw-rw-r-- 1 root wheel 14, 13 Jan 9 20:53 /dev/nrst0a
crw-rw-r-- 1 root wheel 14, 5 Feb 29 15:39 /dev/nrst0h
crw-rw-r-- 1 root wheel 14, 1 Feb 1 11:05 /dev/nrst0l
crw-rw-r-- 1 root wheel 14, 9 Feb 1 11:19 /dev/nrst0m
brw-rw---- 1 root operator 5, 1 Nov 24 15:16 /dev/nst0
brw-rw-r-- 1 root wheel 5, 13 Jan 9 18:26 /dev/nst0a
brw-rw-r-- 1 root wheel 5, 5 Jan 9 18:25 /dev/nst0h
brw-rw-r-- 1 root wheel 5, 1 Jan 9 18:25 /dev/nst0l
brw-rw-r-- 1 root wheel 5, 9 Jan 9 18:26 /dev/nst0m
crw-rw---- 1 root operator 14, 0 Nov 24 15:16 /dev/rst0
crw-rw-r-- 1 root wheel 14, 12 Jan 9 18:26 /dev/rst0a
crw-rw-r-- 1 root wheel 14, 4 Jan 9 18:26 /dev/rst0h
crw-rw-r-- 1 root wheel 14, 0 Jan 9 18:26 /dev/rst0l
crw-rw-r-- 1 root wheel 14, 8 Jan 9 18:26 /dev/rst0m
brw-rw---- 1 root operator 5, 0 Nov 24 15:16 /dev/st0
brw-rw-r-- 1 root wheel 5, 12 Jan 9 18:27 /dev/st0a
brw-rw-r-- 1 root wheel 5, 4 Jan 9 18:27 /dev/st0h
brw-rw-r-- 1 root wheel 5, 0 Jan 9 18:27 /dev/st0l
brw-rw-r-- 1 root wheel 5, 8 Jan 9 18:27 /dev/st0m
and patch the source tree as follows (but replace EXB-85058SQANXR1 by
something more universal (I did not understand the matching algorithm):
*** sys/scsi/scsiconf.c.orig Fri Jan 12 13:28:18 1996
--- sys/scsi/scsiconf.c Tue Feb 6 20:43:18 1996
***************
*** 337,342 ****
--- 337,344 ----
{T_SEQUENTIAL, T_REMOV,
"EXABYTE ", "EXB-8200 ", "", SDEV_NOLUNS},
{T_SEQUENTIAL, T_REMOV,
+ "EXABYTE ", "EXB-85058SQANXR1", "", SDEV_NOLUNS},
+ {T_SEQUENTIAL, T_REMOV,
"SONY ", "SDT-2000 ", "2.09", SDEV_NOLUNS},
{T_SEQUENTIAL, T_REMOV,
"SONY ", "SDT-5000 ", "3.", SDEV_NOSYNCWIDE},
*** sys/scsi/st.c.orig Fri Jan 12 13:28:20 1996
--- sys/scsi/st.c Tue Feb 6 20:43:19 1996
***************
*** 79,86 ****
#define STUNIT(z) ((minor(z) >> 4) )
#define CTLMODE 3
! #define SCSI_2_MAX_DENSITY_CODE 0x17 /* maximum density code specified
! * in SCSI II spec. */
/*
* Define various devices that we know mis-behave in some way,
* and note how they are bad, so we can correct for them
--- 79,86 ----
#define STUNIT(z) ((minor(z) >> 4) )
#define CTLMODE 3
! #define SCSI_2_MAX_DENSITY_CODE 0xff
!
/*
* Define various devices that we know mis-behave in some way,
* and note how they are bad, so we can correct for them
***************
*** 200,214 ****
0, 0, 0, /* minor 8-11 */
0, 0, 0 /* minor 12-15 */
}},
- #if 0
{T_SEQUENTIAL, T_REMOV,
! "EXABYTE ", "EXB-8200 ", "", 0, 12, {
! 0, 0, 0, /* minor 0-3 */
! 0, 0, 0, /* minor 4-7 */
! 0, 0, 0, /* minor 8-11 */
! 0, 0, 0 /* minor 12-15 */
}},
- #endif
};
#define NOEJECT 0
--- 200,212 ----
0, 0, 0, /* minor 8-11 */
0, 0, 0 /* minor 12-15 */
}},
{T_SEQUENTIAL, T_REMOV,
! "EXABYTE ", "EXB-85058SQANXR1", "", 0, 0, {
! 0, 0, 0x00, /* minor 0-3 */
! 0, 0, 0x8c, /* minor 4-7 */
! 0, 0, 0x90, /* minor 8-11 */
! 0, 0, 0x14 /* minor 12-15 */
}},
};
#define NOEJECT 0
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: kern-bug-people->mjacob
Responsible-Changed-By: lukem
Responsible-Changed-When: Wed Apr 18 05:10:34 PDT 2001
Responsible-Changed-Why:
matt jacob is our scsi tape guru; maybe he can comment on this pr
Responsible-Changed-From-To: mjacob->bouyer
Responsible-Changed-By: fair
Responsible-Changed-When: Wed Mar 24 20:43:32 UTC 2004
Responsible-Changed-Why:
Matt Jacob resigned from the NetBSD Project. Manuel Bouyer is our
SCSI expert (if not an expert in SCSI tapes). Manuel, can you look
over this ancient PR, please?
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.39 2013/11/01 18:47:49 spz Exp $
$NetBSD: gnats_config.sh,v 1.8 2006/05/07 09:23:38 tsutsui Exp $
Copyright © 1994-2007
The NetBSD Foundation, Inc. ALL RIGHTS RESERVED.
Home