0.000000]

My system refuses to boot randomly . here is the error [ 52.308000] ata2.00: exeception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 52.308000] ata2.00: cmd c8/00:08:d6:4a:89/00:00:00:00/e2 tag 0 cdb 0x0 data 4096 in [ 92.568000] ata2.00: revalidation failed (errno=-5) [ 137.832000]...