root$ dd if=/dev/zero of=/dev/da0 seek=0x3bafff bs=512

(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 3b af ff 00 00 01 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command

(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 3b af ff 00 00 01 00
Jan  1 00:27:59  kernel: (da0:umass-sim0:0:0:0): CAM status: CCB request
completed with an error
Jan  1 00:27:59  kernel: (da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 00 3b af ff 00 00 01 00
(da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(da0:umass-sim0:0:0:0): Retrying command
, Retries exhausted
dd: /dev/da0: Input/output error
1+0 records in
0+0 records out

0 bytes transferred in 96.712889 secs (0 bytes/sec)
, Retries exhausted
(da0:umass-sim0:0:0:0): got CAM status 0x44
(da0:umass-sim0:0:0:0): fatal error, failed to attach to device
da0 at umass-sim0 bus 0 scbus0 target 0 lun 0
da0: < USB DISK 2.0 PMAP> s/n 7F004CFA835CDF49 detached

(da0:umass-sim0:0:0:0): Periph destroyed
(da0:umass-sim0:0:0:0): Periph destroyed

would this indicate usb Hw storage is flaky?
Thanks
kott



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