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DateThu, 9 Jan 1997 20:45:44 +0100
From mab@hamburg ...
SubjectSCSI-Trouble
-- 

Hi *,

i got really big trouble!

My environment:

  Linux 2.0.27,
  P133/32MB,
  Adaptec AHA2940,
  Quantum Atlas XP32150W,
  SCSI-Termination correct and verified!
  no (E)IDE-Drives nor (E)IDE-support in the kernel,

  # fd says:

  Filesystem         1024-blocks  Used Available Capacity Mounted on
  /dev/sda2              62211   26769    32229     45%   /
  /dev/sda4            1391176 1241029    78257     94%   /usr
  /dev/sda1             666480  574864    91616     86%   /msdos

The problem:

  I untarred a big archive (30MB) and deleted a big directory-tree
  at the same time -> boom!
  It trashed big parts of the filesystem.

syslog:

  kernel: scsi0: Target 0 underflow - Wanted at least 98304, got 96256, residual SG count 24.
  .
  .
  .
  kernel: EXT2-fs error (device 08:04): ext2_free_blocks: Freeing blocks not in datazone - block = 543975790, count=1


Another problem:

  I do a 'ls' on /msdos -> boom!
  I had to reset the computer.

syslog:

  godot kernel: scsi0: Queue full.
  godot kernel: scsi : aborting command due to timeout : pid 3237, scsi0, channel 0, id 0, lun 0 Read (6) 02 ba 75 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3238, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 69 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3237, scsi0, channel 0, id 0, lun 0 Read (6) 02 ba 75 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3237) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x44
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: scsi : aborting command due to timeout : pid 3238, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 69 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3238) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x54
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: SCSI host 0 channel 0 reset (pid 3237) timed out - trying harder
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (reset_device) target/channel -1/A, active_scb 1
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 1, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 0, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_channel) Resetting current channel A
  godot kernel: aic7xxx: (reset_channel) Channel reset, sequencer restarted
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 0, TCL=0/0/0
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 1, TCL=0/0/0
  godot kernel: scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15.
  godot mgetty[267]: init chat failed, exiting...: Interrupted system call
  godot kernel: scsi0: Queue full.
  godot kernel: scsi0: Queue full.
  godot kernel: scsi : aborting command due to timeout : pid 3446, scsi0, channel 0, id 0, lun 0 Read (6) 02 ba e2 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3447, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 8f 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3446, scsi0, channel 0, id 0, lun 0 Read (6) 02 ba e2 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3446) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x44
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: scsi : aborting command due to timeout : pid 3447, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 8f 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3447) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x54
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: SCSI host 0 channel 0 reset (pid 3446) timed out - trying harder
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (reset_device) target/channel -1/A, active_scb 0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 0, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 0, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 1, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_channel) Resetting current channel A
  godot kernel: aic7xxx: (reset_channel) Channel reset, sequencer restarted
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 0, TCL=0/0/0
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 1, TCL=0/0/0
  godot kernel: scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15.
  godot kernel: scsi0: Queue full.
  godot kernel: scsi : aborting command due to timeout : pid 3680, scsi0, channel 0, id 0, lun 0 Read (6) 02 bb 9f 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3681, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 95 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: scsi : aborting command due to timeout : pid 3680, scsi0, channel 0, id 0, lun 0 Read (6) 02 bb 9f 01 00 
  godot kernel: aic7xxx: (abort) Aborting scb 0, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3680) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x44
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: scsi : aborting command due to timeout : pid 3681, scsi0, channel 0, id 0, lun 0 Write (6) 15 7e 95 02 00 
  godot kernel: aic7xxx: (abort) Aborting scb 1, TCL 0/0/0
  godot kernel: SCSI host 0 abort (pid 3681) timed out - resetting
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (abort_reset) scb state 0x1, Data-In phase, SCSISIGI = 0x54
  godot kernel: aic7xxx: (abort_scb) asserted ATN - bus device reset in message buffer.
  godot kernel: SCSI host 0 channel 0 reset (pid 3680) timed out - trying harder
  godot kernel: SCSI bus is being reset for host 0 channel 0.
  godot kernel: aic7xxx: (reset) target/channel 0/0
  godot kernel: aic7xxx: (reset_device) target/channel -1/A, active_scb 0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot mgetty[271]: init chat failed, exiting...: Interrupted system call
  godot kernel: aic7xxx: (reset_device) aborting SCB 0, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_device) aborting SCB 1, TCL=0/0/0
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (match_scb) comparing target/channel -1/A to scb 0/A
  godot kernel: aic7xxx: (reset_channel) Resetting current channel A
  godot kernel: aic7xxx: (reset_channel) Channel reset, sequencer restarted
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 0, TCL=0/0/0
  godot kernel: aic7xxx: (done_aborted_scbs) Aborting scb 1, TCL=0/0/0
  godot kernel: scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15.


Isn't that funny?? ;-((

Any help appreciated!

Martin
---------------------------------------------------------
  Martin Bauer  <mab@hamburg.germanlloyd.de>
                Buchwaldstr. 53, 22143 Hamburg, Germany
                phone/fax: +49-40-67561346/47
---------------------------------------------------------
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