New: sense key error when sending even number of bytes to /dev/st0

Bugme-new Andrew Morton 2 participants 3 messages Dec 1, 2006 – Dec 2, 2006 SCSI

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Andrew Morton

author

2006-12-01 19:29 UTC #0 lore raw

Begin forwarded message:

Date: Fri, 1 Dec 2006 08:40:16 -0800
From: [email protected]
To: [email protected]
Subject: [Bugme-new] [Bug 7610] New: sense key error when sending even number of bytes to /dev/st0

http://bugzilla.kernel.org/show_bug.cgi?id=7610

           Summary: sense key error when sending even number of bytes to
                    /dev/st0
    Kernel Version: 2.6.19
            Status: NEW
          Severity: normal
             Owner: [email protected]
         Submitter: [email protected]

Most recent kernel where this bug did *NOT* occur: unknown
Distribution: Debian, but using kernel from kernel.org
Hardware Environment: Dell Poweredge 2800 Xeon, Quantum DLT VS160 tape drive, scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
<Adaptec 3960D Ultra160 SCSI adapter>
aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
Software Environment:

Gnu C                  3.3.5
Gnu make               3.80
binutils               2.15
util-linux             2.12p
mount                  2.12p
module-init-tools      3.2.2
e2fsprogs              1.37
nfs-utils              1.0.6
Linux C Library        2.3.6
Dynamic linker (ldd)   2.3.6
Procps                 3.2.1
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.2.1
udev                   088
Modules Loaded         st parport_pc parport

Problem Description:
When sending an even number of bytes to /dev/st0, I get the following error in /var/log/kernel:

Nov 30 16:13:47 mugsy kernel: st0: Current: sense key: Illegal Request
Nov 30 16:13:47 mugsy kernel:     Additional sense: Invalid field in cdb

Steps to reproduce:
this will write to the tape:

echo "A" > /dev/st0
echo "ABC" > /dev/st0

this will not write to the tape and will produce the kernel error:

echo "AB" > /dev/st0
echo "ABCD" > /dev/st0

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Kai Makisara

2006-12-02 15:25 UTC #1 lore raw

Quoted 55 lines · Andrew Morton

Begin forwarded message:
Date: Fri, 1 Dec 2006 08:40:16 -0800
From: [email protected]
To: [email protected]
Subject: [Bugme-new] [Bug 7610] New: sense key error when sending even number of bytes to /dev/st0
http://bugzilla.kernel.org/show_bug.cgi?id=7610
           Summary: sense key error when sending even number of bytes to
                    /dev/st0
    Kernel Version: 2.6.19
            Status: NEW
          Severity: normal
             Owner: [email protected]
         Submitter: [email protected]
Most recent kernel where this bug did *NOT* occur: unknown
Distribution: Debian, but using kernel from kernel.org
Hardware Environment: Dell Poweredge 2800 Xeon, Quantum DLT VS160 tape drive, scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
<Adaptec 3960D Ultra160 SCSI adapter>
aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
Software Environment:
Gnu C                  3.3.5
Gnu make               3.80
binutils               2.15
util-linux             2.12p
mount                  2.12p
module-init-tools      3.2.2
e2fsprogs              1.37
nfs-utils              1.0.6
Linux C Library        2.3.6
Dynamic linker (ldd)   2.3.6
Procps                 3.2.1
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.2.1
udev                   088
Modules Loaded         st parport_pc parport
Problem Description:
When sending an even number of bytes to /dev/st0, I get the following error in /var/log/kernel:
Nov 30 16:13:47 mugsy kernel: st0: Current: sense key: Illegal Request
Nov 30 16:13:47 mugsy kernel:     Additional sense: Invalid field in cdb
Steps to reproduce:
this will write to the tape:

Quoted 8 lines

echo "A" > /dev/st0
echo "ABC" > /dev/st0
this will not write to the tape and will produce the kernel error:
echo "AB" > /dev/st0
echo "ABCD" > /dev/st0

I think this is not a bug but a user error.

Firstly, the report should say that writing odd number of bytes does not work (echo adds newline to the data).

The reason for the problem is probably that the drive in question does not support writing blocks with odd number of bytes. I just tested the echo commands with my drive and all echos succeeded (kernel 2.6.19).

Signature · 1 line

Kai

Andrew Morton

author

2006-12-02 18:16 UTC #2 lore raw

(Originator and bugzilla added to cc)

Quoted 76 lines · On Sat, 2 Dec 2006 17:27:20 +0200 (EET) Kai Makisara…

Quoted 55 lines · Andrew Morton
Begin forwarded message:
Date: Fri, 1 Dec 2006 08:40:16 -0800
From: [email protected]
To: [email protected]
Subject: [Bugme-new] [Bug 7610] New: sense key error when sending even number of bytes to /dev/st0
http://bugzilla.kernel.org/show_bug.cgi?id=7610
           Summary: sense key error when sending even number of bytes to
                    /dev/st0
    Kernel Version: 2.6.19
            Status: NEW
          Severity: normal
             Owner: [email protected]
         Submitter: [email protected]
Most recent kernel where this bug did *NOT* occur: unknown
Distribution: Debian, but using kernel from kernel.org
Hardware Environment: Dell Poweredge 2800 Xeon, Quantum DLT VS160 tape drive, scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
<Adaptec 3960D Ultra160 SCSI adapter>
aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
Software Environment:
Gnu C                  3.3.5
Gnu make               3.80
binutils               2.15
util-linux             2.12p
mount                  2.12p
module-init-tools      3.2.2
e2fsprogs              1.37
nfs-utils              1.0.6
Linux C Library        2.3.6
Dynamic linker (ldd)   2.3.6
Procps                 3.2.1
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.2.1
udev                   088
Modules Loaded         st parport_pc parport
Problem Description:
When sending an even number of bytes to /dev/st0, I get the following error in /var/log/kernel:
Nov 30 16:13:47 mugsy kernel: st0: Current: sense key: Illegal Request
Nov 30 16:13:47 mugsy kernel:     Additional sense: Invalid field in cdb
Steps to reproduce:
this will write to the tape:
Quoted 8 lines
echo "A" > /dev/st0
echo "ABC" > /dev/st0
this will not write to the tape and will produce the kernel error:
echo "AB" > /dev/st0
echo "ABCD" > /dev/st0
I think this is not a bug but a user error.
Firstly, the report should say that writing odd number of bytes does not work (echo adds newline to the data).
The reason for the problem is probably that the drive in question does not support writing blocks with odd number of bytes. I just tested the echo commands with my drive and all echos succeeded (kernel 2.6.19).
Signature · 1 line
Kai