ну и гадит в лог:
[ 973.753356] ata3: exception Emask 0x10 SAct 0x0 SErr 0x90202 action 0xe frozen
[ 973.753366] ata3: irq_stat 0x00400000, PHY RDY changed
[ 973.753374] ata3: SError: { RecovComm Persist PHYRdyChg 10B8B }
[ 973.753386] ata3: hard resetting link
[ 977.920055] ata3: softreset failed (device not ready)
[ 977.920066] ata3: applying SB600 PMP SRST workaround and retrying
[ 978.100069] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 978.109475] ata3.00: failed to IDENTIFY (I/O error, err_mask=0x100)
[ 978.109485] ata3.00: revalidation failed (errno=-5)
[ 983.100053] ata3: hard resetting link
[ 985.730057] ata3: softreset failed (device not ready)
[ 985.730067] ata3: applying SB600 PMP SRST workaround and retrying
[ 985.910064] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 986.126380] ata3.00: configured for UDMA/133
[ 986.126392] ata3: EH complete
....
[ 1036.138992] ata3.00: exception Emask 0x50 SAct 0x1 SErr 0x90a00 action 0xe frozen
[ 1036.139001] ata3.00: irq_stat 0x00400000, PHY RDY changed
[ 1036.139009] ata3: SError: { Persist HostInt PHYRdyChg 10B8B }
[ 1036.139017] ata3.00: failed command: READ FPDMA QUEUED
[ 1036.139032] ata3.00: cmd 60/18:00:b5:17:48/00:00:01:00:00/40 tag 0 ncq 12288 in
[ 1036.139035] res 40/00:00:b5:17:48/00:00:01:00:00/40 Emask 0x50 (ATA bus error)
[ 1036.139041] ata3.00: status: { DRDY }
[ 1036.139051] ata3: hard resetting link
[ 1040.080072] ata3: SATA link down (SStatus 0 SControl 310)
[ 1040.085206] ata3: hard resetting link
[ 1044.370047] ata3: softreset failed (device not ready)
[ 1044.370057] ata3: applying SB600 PMP SRST workaround and retrying
[ 1044.550066] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 1044.787029] ata3.00: configured for UDMA/100
[ 1044.787055] ata3: EH complete
Шо це значит?