Comment 11 for bug 965213

I have found what it is.

In respect to:

http://lime-technology.com/wiki/index.php?title=The_Analysis_of_Drive_Issues

with the text passage(citing):

"Drive Interface Issues

These are problems with the cables and connections to the drive, both power and data, or the quality of the power supplied. If your errors match one of these, then almost certainly, your drive is completely fine. There have been many drives returned or thrown out, after numerous errors similar to the following issues, that were entirely the fault of the cables or power or connectors used, NOT the drive itself.
"

-> You may read on on the linked website for which kernel entries are indicating this.

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I went in the next computer store and came back with a new SATA data and a new SATA energy cable(arround 20€ -> propably cheaper when you have time to look for).

I changed both against my old ones.

I have had runned the system since many days to be sure under haesy hardrive load(virtulisation with qemu-kvm with many guests in parallel).

-> No ata1 errors anymore with the same harddrive!

A deeper look at the cables shows me that the plastic connector of the SATA energy supply to the harddrive was deformed a bit.
It was nearly invisible but seems to be enough to interrupt the harddrive and causes this errors.

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I would like to bring this issue up as a blueprint for Ubuntu/apport, because it was a time stealing one which is not easy to identify.

The system should inform the user/superuser when there are entries of this type in the kernel log that this affected with the possibility of defect cable or cable connectors to the harddrive.

I let this open for now, so that user affected by this can find it.