ata1: command 0xca timeout, stat 0xd0 host_stat 0x21
ata1: translated ATA stat/err 0xd0/00 to SCSI SK/ASC/ASCQ 0xb/47/00
ata1: status=0xd0 { Busy }
sd 0:0:0:0: SCSI error: return code = 0x8000002
sda: Current: sense key=0xb
    ASC=0x47 ASCQ=0x0
Info fld=0x1440181
end_request: I/O error, dev sda, sector 21316881
Buffer I/O error on device dm-0, logical block 86419570
lost page write due to I/O error on dm-0
ata1: command 0xca timeout, stat 0xd0 host_stat 0x21
ata1: translated ATA stat/err 0xd0/00 to SCSI SK/ASC/ASCQ 0xb/47/00
ata1: status=0xd0 { Busy }
sd 0:0:0:0: SCSI error: return code = 0x8000002
sda: Current: sense key=0xb
    ASC=0x47 ASCQ=0x0
Info fld=0x1454511
end_request: I/O error, dev sda, sector 21325081
Buffer I/O error on device dm-0, logical block 86420595
lost page write due to I/O error on dm-0
root@mythcenter:~#