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Subjectncr53c8xx 3.0i: scsi errors with 2.1.125
I am installing an old dec tz30 (DLT tape). I am having some problems.
The tape is on id=2. I am running 2.1.125 vanilla.

The command I am issuing is a simple "mt -f /dev/st0 rewind"

1) The unit does not give a vendor id, yet /proc/scsi/scsi shows
some. It actually shows the info from the lower id.

2) Any attempt to access the tape gives a scsi error. I need to
know if this is a real drive problem of is the driver failing
to talk to this unit which seems to have a strange scsi
implementation.

3) After the bus reset, why is id=0 being reset when the error was
on id=2?

-------------------- /proc/scsi/scsi
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: QUANTUM Model: XP34301 Rev: 108J
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: SEAGATE Model: ST31200N Rev: 8648
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: SEAGATE Model: ST31200N Rev: 8648
Type: Sequential-Access ANSI SCSI revision: 01
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: ARCHIVE Model: Python 28849-XXX Rev: 4.CM
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 01
Vendor: ARCHIVE Model: Python 28849-XXX Rev: 4.CM
Type: Medium Changer ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: WANGTEK Model: 6200-HS Rev: 4B18
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: ARCHIVE Model: VIPER 150 21247 Rev: -005
Type: Sequential-Access ANSI SCSI revision: 01
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: TOSHIBA Model: CD-ROM XM-3501TA Rev: 3384
Type: CD-ROM ANSI SCSI revision: 02

----------------------- bootup messages
Oct 12 12:09:37 eyal kernel: ncr53c8xx: at PCI bus 0, device 10,
function 0
Oct 12 12:09:37 eyal kernel: ncr53c8xx: 53c810 detected
Oct 12 12:09:37 eyal kernel: ncr53c810-0: rev=0x01, base=0xe6800000,
io_port=0xd400, irq=11
Oct 12 12:09:37 eyal kernel: ncr53c810-0: ID 7, Fast-10, Parity Checking
Oct 12 12:09:37 eyal kernel: ncr53c810-0: restart (scsi reset).
Oct 12 12:09:37 eyal kernel: scsi0 : ncr53c8xx - revision 3.0i
Oct 12 12:09:37 eyal kernel: scsi : 1 host.
Oct 12 12:09:37 eyal kernel: Vendor: QUANTUM Model:
XP34301 Rev: 108J
Oct 12 12:09:37 eyal kernel: Type:
Direct-Access ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: Vendor: SEAGATE Model:
ST31200N Rev: 8648
Oct 12 12:09:37 eyal kernel: Type:
Direct-Access ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: Vendor:
Model: Rev:
Oct 12 12:09:37 eyal kernel: Type:
Sequential-Access ANSI SCSI revision: 01
Oct 12 12:09:37 eyal kernel: Vendor: ARCHIVE Model: Python
28849-XXX Rev: 4.CM
Oct 12 12:09:37 eyal kernel: Type:
Sequential-Access ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: Vendor: ARCHIVE Model: Python
28849-XXX Rev: 4.CM
Oct 12 12:09:37 eyal kernel: Type: Medium
Changer ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: Vendor: WANGTEK Model:
6200-HS Rev: 4B18
Oct 12 12:09:37 eyal kernel: Type:
Sequential-Access ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: Vendor: ARCHIVE Model: VIPER 150
21247 Rev: -005
Oct 12 12:09:37 eyal kernel: Type:
Sequential-Access ANSI SCSI revision: 01
Oct 12 12:09:37 eyal kernel: Vendor: TOSHIBA Model: CD-ROM
XM-3501TA Rev: 3384
Oct 12 12:09:37 eyal kernel: Type:
CD-ROM ANSI SCSI revision: 02
Oct 12 12:09:37 eyal kernel: ncr53c810-0-<0,0>: tagged command queue
depth set to 8
Oct 12 12:09:37 eyal kernel: ncr53c810-0-<1,0>: tagged command queue
depth set to 8
Oct 12 12:09:37 eyal kernel: Detected scsi disk sda at scsi0, channel 0,
id 0, lun 0
Oct 12 12:09:37 eyal kernel: Detected scsi disk sdb at scsi0, channel 0,
id 1, lun 0
Oct 12 12:09:37 eyal kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s
(100 ns, offset 8)
Oct 12 12:09:37 eyal kernel: SCSI device sda: hdwr sector= 512 bytes.
Sectors= 8410200 [4106 MB][4.1 GB]
Oct 12 12:09:37 eyal kernel: sda: sda1 sda2 sda3
Oct 12 12:09:37 eyal kernel: ncr53c810-0-<1,*>: FAST-10 SCSI 10.0 MB/s
(100 ns, offset 8)
Oct 12 12:09:37 eyal kernel: SCSI device sdb: hdwr sector= 512 bytes.
Sectors= 2061108 [1006 MB] [1.0 GB]
Oct 12 12:09:37 eyal kernel: sdb: sdb1 sdb2
Oct 12 12:09:37 eyal kernel: st: bufsize 32768, wrt 30720, max buffers
4, s/g segs 16.
Oct 12 12:09:37 eyal kernel: Detected scsi tape st0 at scsi0, channel 0,
id 2, lun 0
Oct 12 12:09:37 eyal kernel: Detected scsi tape st1 at scsi0, channel 0,
id 3, lun 0
Oct 12 12:09:37 eyal kernel: Detected scsi tape st2 at scsi0, channel 0,
id 4, lun 0
Oct 12 12:09:37 eyal kernel: Detected scsi tape st3 at scsi0, channel 0,
id 5, lun 0

----------------------- rewind messages

ncr53c810-0-<2,0>: extraneous data discarded.
ncr53c810-0-<2,0>: COMMAND FAILED (89 0) @c3e7b820.
ncr53c810-0-<2,0>: extraneous data discarded.
ncr53c810-0-<2,0>: COMMAND FAILED (89 0) @c3e7b820.
scsi0 channel 0 : resetting for second half of retries.
SCSI bus is being reset for host 0 channel 0.
ncr53c8xx_reset: pid=136492 reset_flags=1 serial_number=0
serial_number_at_timeout=0
ncr53c810-0: restart (scsi reset).
ncr53c810-0-<2,*>: SYNC transfers not supported.
ncr53c810-0-<2,0>: extraneous data discarded.
ncr53c810-0-<2,0>: COMMAND FAILED (89 0) @c3e7b820.
ncr53c810-0-<2,0>: extraneous data discarded.
ncr53c810-0-<2,0>: COMMAND FAILED (89 0) @c3e7b820.
st0: Error 27070000 (sugg. bt 0x20, driver bt 0x27, host bt 0x7).
st0: Error with sense data: extra data not valid Current error st09:00:
sense key Not Ready
ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
st0: Error with sense data: extra data not valid Current error st09:00:
sense key Not Ready

--
Eyal Lebedinsky (eyal@eyal.emu.id.au)

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