Comment 43 for bug 550559

[ 32.816080] ata2: lost interrupt (Status 0x58)
[ 32.820012] ata2: drained 32768 bytes to clear DRQ.
[ 32.871768] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 32.871830] ata2.00: failed command: READ DMA
[ 32.871885] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[ 32.871888] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 32.871985] ata2.00: status: { DRDY }
[ 32.872094] ata2: soft resetting link
[ 33.116959] ata2.00: configured for UDMA/100
[ 33.116973] ata2.00: device reported invalid CHS sector 0
[ 33.117005] ata2: EH complete
[ 63.816077] ata2: lost interrupt (Status 0x58)
[ 63.820019] ata2: drained 32768 bytes to clear DRQ.
[ 63.871764] ata2.00: limiting speed to UDMA/66:PIO4
[ 63.871773] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 63.871835] ata2.00: failed command: READ DMA
[ 63.871890] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[ 63.871893] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 63.871990] ata2.00: status: { DRDY }
[ 63.872102] ata2: soft resetting link
[ 64.092468] ata2.00: configured for UDMA/66
[ 64.092481] ata2.00: device reported invalid CHS sector 0
[ 64.092511] ata2: EH complete
[ 94.816075] ata2: lost interrupt (Status 0x58)
[ 94.820018] ata2: drained 32768 bytes to clear DRQ.
[ 94.871763] ata2.00: limiting speed to UDMA/33:PIO4
[ 94.871771] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 94.871832] ata2.00: failed command: READ DMA
[ 94.871887] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[ 94.871890] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 94.871987] ata2.00: status: { DRDY }
[ 94.872100] ata2: soft resetting link
[ 95.044462] ata2.00: configured for UDMA/33
[ 95.044474] ata2.00: device reported invalid CHS sector 0
[ 95.044503] ata2: EH complete
[ 125.816079] ata2: lost interrupt (Status 0x58)
[ 125.820019] ata2: drained 32768 bytes to clear DRQ.
[ 125.871767] ata2.00: limiting speed to PIO4
[ 125.871775] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 125.871836] ata2.00: failed command: READ DMA
[ 125.871891] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[ 125.871894] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 125.872056] ata2.00: status: { DRDY }
[ 125.872162] ata2: soft resetting link
[ 126.044453] ata2.00: configured for PIO4
[ 126.044465] ata2.00: device reported invalid CHS sector 0
[ 126.044495] ata2: EH complete

Debian 6, need help :(