[ 1529.248081] sd 4:0:0:0: [sdb] Unhandled error code
[ 1529.248089] sd 4:0:0:0: [sdb]  Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[ 1529.248099] sd 4:0:0:0: [sdb] CDB: Read(10): 28 00 e8 e0 74 40 00 00 08 00
[ 1529.248120] end_request: I/O error, dev sdb, sector 3907023936
[ 1529.248129] quiet_error: 42 callbacks suppressed
[ 1529.248135] Buffer I/O error on device sdb1, logical block 488377984
[ 1542.688114] usb 2-1: new high-speed USB device number 6 using ehci_hcd
[ 1542.833002] scsi6 : usb-storage 2-1:1.0
[ 1543.854354] scsi 6:0:0:0: Direct-Access     Samsung  G3 Station            PQ: 0 ANSI: 2 CCS
[ 1543.857835] sd 6:0:0:0: [sdb] 3907028992 512-byte logical blocks: (2.00 TB/1.81 TiB)
[ 1543.858921] sd 6:0:0:0: [sdb] Write Protect is off
[ 1543.858930] sd 6:0:0:0: [sdb] Mode Sense: 28 00 00 00
[ 1543.859084] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 1543.864237] sd 6:0:0:0: [sdb] No Caching mode page found
[ 1543.864246] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 1543.867812] sd 6:0:0:0: [sdb] No Caching mode page found
[ 1543.867821] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 1543.874853]  sdb: sdb1
[ 1543.877831] sd 6:0:0:0: [sdb] No Caching mode page found
[ 1543.877840] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 1543.877848] sd 6:0:0:0: [sdb] Attached SCSI disk