Subject: Pb with a tape TRAVAN TR4 device

[Mr LEROY christophe]

I've a AHA-2940AU with two internal devices: 
scsi0: Target 1, channel A, now synchronous at 10.0MHz, offset 15.
  Vendor: IBM       Model: DORS-32160        Rev: WA6A
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
scsi0: Target 2, channel A, now synchronous at 5.0MHz, offset 15.
  Vendor: CONNER    Model: CTT8000-S         Rev: 1.07
  Type:   Sequential-Access                  ANSI SCSI revision: 02

When triing to position the tape using mt (mt rewind, mt fsf, etc...),
If I'm in Single User Mode (Linux booted with -b option), it works fine, but
In Multi user mode, It comes a Timeout on access to Disk during tape positioning.
Could someone help me to solve this Probleme ???

Christophe Leroy

Here is my /proc/scsi/aic7xxx/0 then my kernel ring buffer contents

Adaptec AIC7xxx driver version: 4.0/3.2/4.0

Compile Options:
  AIC7XXX_RESET_DELAY    : 15
  AIC7XXX_TWIN_SUPPORT   : Enabled
  AIC7XXX_TAGGED_QUEUEING: Disabled
  AIC7XXX_PAGE_ENABLE    : Enabled
  AIC7XXX_PROC_STATS     : Disabled

Adapter Configuration:
          SCSI Adapter: AHA-2940A Ultra
                        (AIC-785x chipset)
              Host Bus: Single
               Base IO: 0xfc00
                   IRQ: 11
                  SCBs: Used 2, HW 3, Page 255
            Interrupts: 5018
         Serial EEPROM: True
  Extended Translation: Enabled
        SCSI Bus Reset: Disabled
            Ultra SCSI: Disabled
     Target Disconnect: Disabled


Kernel buffer:scsi : aborting command due to timeout : pid 5034, scsi0, channel 0, id 1, lun 0 Write (6) 00 00 50 02 00 
aic7xxx: (abort) Aborting scb 1, TCL 1/0/0
scsi : aborting command due to timeout : pid 5034, scsi0, channel 0, id 1, lun 0 Write (6) 00 00 50 02 00 
aic7xxx: (abort) Aborting scb 1, TCL 1/0/0
SCSI host 0 abort (pid 5034) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 1/0
aic7xxx: (abort_reset) scb state 0x1, Command phase, SCSISIGI = 0x84
aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
scsi : aborting command due to timeout : pid 5035, scsi0, channel 0, id 1, lun 0 Write (6) 11 3d e0 04 00 
aic7xxx: (abort) Aborting scb 2, TCL 1/0/0
SCSI host 0 channel 0 reset (pid 5034) timed out - trying harder
SCSI bus is being reset for host 0 channel 0.
aic7xxx: (reset) target/channel 1/0
aic7xxx: (reset_device) target/channel -1/A, active_scb 0
aic7xxx: (match_scb) comparing target/channel -1/A to scb 1/A
aic7xxx: (reset_device) aborting SCB 1, TCL=1/0/0
aic7xxx: (match_scb) comparing target/channel -1/A to scb 1/A
aic7xxx: (reset_device) aborting SCB 2, TCL=1/0/0
aic7xxx: (match_scb) comparing target/channel -1/A to scb 2/A
aic7xxx: (match_scb) comparing target/channel -1/A to scb 1/A
aic7xxx: (match_scb) comparing target/channel -1/A to scb 1/A
aic7xxx: (reset_channel) Resetting current channel A
aic7xxx: (reset_channel) Channel reset, sequencer restarted
aic7xxx: (done_aborted_scbs) Aborting scb 0, TCL=2/0/0
aic7xxx: (done_aborted_scbs) Aborting scb 1, TCL=1/0/0
aic7xxx: (done_aborted_scbs) Aborting scb 2, TCL=1/0/0
scsi0: Target 2, channel A, now synchronous at 5.0MHz, offset 15.
scsi0: Target 1, channel A, now synchronous at 10.0MHz, offset 15.
st0: Error with sense data: extra data not valid Current error st09:00: sense key Unit Attention
Additional sense indicates Power on, reset, or bus device reset occurred