Henry VanDyke wrote:
COuld you run  the the driver with the following options and post the
results of sloginfo
devb-umass cam verbose=5
Hi Henry, thanks for the help, output is as follows (a bit long):
Time             Sev Major Minor Args
Jun 23 08:10:38    2     5     0 type=3 addr=8053740 len=144 stat=0
path=0 targ=0 lun=0 flag=000000c0
Jun 23 08:10:38    2     5     0 XPT_SCSI_IO
Jun 23 08:10:38    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:38    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:38    2     5     0 data_ptr=00ff8000
Jun 23 08:10:38    2     5     0      cdblen=6  (
Jun 23 08:10:38    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:38    2     5     0  )
Jun 23 08:10:38    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:38    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:39    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:40    2     5     0 XPT_SCSI_IO
Jun 23 08:10:40    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:40    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:40    2     5     0 data_ptr=00ff8000
Jun 23 08:10:40    2     5     0      cdblen=6  (
Jun 23 08:10:40    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:40    2     5     0  )
Jun 23 08:10:40    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:40    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:41    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:42    2     5     0 XPT_SCSI_IO
Jun 23 08:10:42    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:42    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:42    2     5     0 data_ptr=00ff8000
Jun 23 08:10:42    2     5     0      cdblen=6  (
Jun 23 08:10:42    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:42    2     5     0  )
Jun 23 08:10:42    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:42    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:42    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:44    2     5     0 XPT_SCSI_IO
Jun 23 08:10:44    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:44    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:44    2     5     0 data_ptr=00ff8000
Jun 23 08:10:44    2     5     0      cdblen=6  (
Jun 23 08:10:44    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:44    2     5     0  )
Jun 23 08:10:44    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:44    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:44    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:45    2     5     0 XPT_SCSI_IO
Jun 23 08:10:45    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:46    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:46    2     5     0 data_ptr=00ff8000
Jun 23 08:10:46    2     5     0      cdblen=6  (
Jun 23 08:10:46    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:46    2     5     0  )
Jun 23 08:10:46    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:46    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:46    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:47    2     5     0 XPT_SCSI_IO
Jun 23 08:10:47    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:48    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:48    2     5     0 data_ptr=00ff8000
Jun 23 08:10:48    2     5     0      cdblen=6  (
Jun 23 08:10:48    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:48    2     5     0  )
Jun 23 08:10:48    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:48    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:48    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:49    2     5     0 XPT_SCSI_IO
Jun 23 08:10:49    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:49    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:50    2     5     0 data_ptr=00ff8000
Jun 23 08:10:50    2     5     0      cdblen=6  (
Jun 23 08:10:50    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:50    2     5     0  )
Jun 23 08:10:50    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:50    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:50    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:51    2     5     0 XPT_SCSI_IO
Jun 23 08:10:51    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:51    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:51    2     5     0 data_ptr=00ff8000
Jun 23 08:10:51    2     5     0      cdblen=6  (
Jun 23 08:10:52    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:52    2     5     0  )
Jun 23 08:10:52    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:52    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:52    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:53    2     5     0 XPT_SCSI_IO
Jun 23 08:10:53    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:53    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:53    2     5     0 data_ptr=00ff8000
Jun 23 08:10:53    2     5     0      cdblen=6  (
Jun 23 08:10:53    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:53    2     5     0  )
Jun 23 08:10:53    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:53    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:54    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:55    2     5     0 XPT_SCSI_IO
Jun 23 08:10:55    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=0 flag=00200440
Jun 23 08:10:55    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:55    2     5     0 data_ptr=00ff8000
Jun 23 08:10:55    2     5     0      cdblen=6  (
Jun 23 08:10:55    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:55    2     5     0  )
Jun 23 08:10:55    2    19   900 umass_bulk_csw_cbf:  invalid residual
30000000
Jun 23 08:10:55    2    19   900 umass_bulk_reset: path 0, devno 1
Jun 23 08:10:56    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=0, cam_status=b, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=1 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 20 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=1, cam_status=38, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=2 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 40 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=2, cam_status=38, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=3 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 60 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=3, cam_status=38, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=4 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 80 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=4, cam_status=38, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=5 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 a0 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=5, cam_status=38, scsi_status=0
Jun 23 08:10:57    2     5     0 XPT_SCSI_IO
Jun 23 08:10:57    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=6 flag=00200440
Jun 23 08:10:57    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:57    2     5     0 data_ptr=00ff8000
Jun 23 08:10:57    2     5     0      cdblen=6  (
Jun 23 08:10:57    2     5     0   12 c0 00 00 60 00 )
Jun 23 08:10:57    2     5     0  )
Jun 23 08:10:57    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=6, cam_status=38, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=0 lun=7 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 e0 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=0, lun=7, cam_status=38, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=1 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=1, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=2 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=2, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=3 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=3, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=4 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=4, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=5 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=5, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=6 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=6, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 XPT_SCSI_IO
Jun 23 08:10:58    2     5     0 addr=8053740 len=144 stat=0 path=0
targ=7 lun=0 flag=00200440
Jun 23 08:10:58    2     5     0      pdrv=8047744 next=0 req_map=0
cbfcnp=b820ce88 xfer_len=96     sense_ptr=80475dc sense_len=20
sense_resid=0 scsi_stat=0
Jun 23 08:10:58    2     5     0 data_ptr=00ff8000
Jun 23 08:10:58    2     5     0      cdblen=6  (
Jun 23 08:10:58    2     5     0   12 00 00 00 60 00 )
Jun 23 08:10:58    2     5     0  )
Jun 23 08:10:58    2     5     0 scsi_interpret_sense:  path=0,
target=7, lun=0, cam_status=39, scsi_status=0
Jun 23 08:10:58    2     5     0 type=3 addr=8053740 len=144 stat=0
path=0 targ=0 lun=0 flag=00000000
Jun 23 08:10:58    2     5     0 [00]     SIM=“” HBA=“QNX USB Storage”
Thanks a lot
Garry