[   49.316823] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   49.316833] ata3.00: BMDMA stat 0x24
[   49.316839] ata3.00: failed command: READ DMA
[   49.316847] ata3.00: cmd c8/00:08:e7:28:45/00:00:00:00:00/e0 tag 0 dma 4096 in
[   49.316847]          res 51/40:00:e7:28:45/00:00:00:00:00/e0 Emask 0x9 (media error)
[   49.316851] ata3.00: status: { DRDY ERR }
[   49.316853] ata3.00: error: { UNC }
[   49.324467] ata3: nv_mode_filter: 0x7f39f&0x7f39f->0x7f39f, BIOS=0x7f000 (0xc700c000) ACPI=0x7f01f (15:600:0x13)
[   49.340331] ata3.00: configured for UDMA/133
[   49.340378] sd 2:0:0:0: [sdb] Unhandled sense code
[   49.340381] sd 2:0:0:0: [sdb]  
[   49.340383] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[   49.340386] sd 2:0:0:0: [sdb]  
[   49.340388] Sense Key : Medium Error [current] [descriptor]
[   49.340393] Descriptor sense data with sense descriptors (in hex):
[   49.340394]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   49.340404]         00 45 28 e7 
[   49.340409] sd 2:0:0:0: [sdb]  
[   49.340414] Add. Sense: Unrecovered read error - auto reallocate failed
[   49.340417] sd 2:0:0:0: [sdb] CDB: 
[   49.340419] Read(10): 28 00 00 45 28 e7 00 00 08 00
[   49.340428] end_request: I/O error, dev sdb, sector 4532455
[   49.340465] ata3: EH complete