Something

ide: failed opcode was: unknown
end_request: I/O error, dev hdd, sector 35074792
Buffer I/O error on device hdd4, logical block 3132035
hdd: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hdd: dma_intr: error=0x40 { UncorrectableError }, LBAsect=69986707, sector=69986704
ide: failed opcode was: unknown
end_request: I/O error, dev hdd, sector 69986704
Buffer I/O error on device hdd4, logical block 7496024
kjournald starting.  Commit interval 5 seconds
EXT3 FS on hdd4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
journal_bmap: journal block not found at offset 3084 on hdd4
Aborting journal on device hdd4.
journal commit I/O error
ext3_abort called.
EXT3-fs error (device hdd4): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only