Comment 13 for bug 294123

Additional info:
It seems to be between kernel versions 2.6.25 and 2.6.26 where it stops working. I am tied to ata_piix, since my ICH8 chipset is a "non-raid" version, which doesn't support AHCI mode, so I have to run the controller in IDE mode.
I already tried a patch to force the chipset into AHCI mode, which supposedly works for mainboards or laptops which haven't got the BIOS option to switch between AHCI or IDE mode for the SATA controller, but this path didn't work for me.

Looking at the diffs in libata and ata_piix between 2.6.25 and 2.6.26, I can see quite a bunch of changes, but as I'm not at all familiar with ATA/IDE/SATA driver programming, I couldn't tell which change actually is responsible for the issue I'm experiencing...

Hope someone in the kernel team is already aware of that and tries to create a fix...