[Sat Jun 20 18:20:27 2015] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[Sat Jun 20 18:20:27 2015] ata1.00: BMDMA stat 0x25
[Sat Jun 20 18:20:27 2015] ata1.00: failed command: READ DMA EXT
[Sat Jun 20 18:20:27 2015] ata1.00: cmd 25/00:80:a4:46:aa/00:00:ba:00:00/e0 tag 0 dma 65536 in
                                    res 51/40:4f:c8:46:aa/40:00:ba:00:00/e0 Emask 0x9 (media error)
[Sat Jun 20 18:20:27 2015] ata1.00: status: { DRDY ERR }
[Sat Jun 20 18:20:27 2015] ata1.00: error: { UNC }