Does my laptop's disk failed?

[ismxray]

The following message is shown at the tty1 when X-window is starting:

hda: dma_intr: status=0x51 { DriveReady SeekComplete Error}
hda: dma_intr: error=0x40 { UncorrectableError}, LBAsect=1686256, hig=0, low=1686256, sector=1686255
ide: failed opcode was: unknown
end_request: I/) error, dev hda, sector 1686255

What does that mean? Thansk!

[UnderScore]

Perhaps it is failing. I have seen that on HD that are healthy but do have a few bad sectors. I have also seen it on HDs that are dying.
This article covers some of what I was going to type out. http://www.newsforge.com/article.pl?.../10/08/1416248