Alan Cox wrote: >> This only forces PATA controllers to certain cable type. It's a last >> resort method for installation or live media - just enough to get things >> going. > > In which case we only need to be able to force UDMA33 or less ? Cable detection goes wrong and 40c is detected as 80c. However, we got (un)lucky and all PIO and short transfers succeed however when large UDMA transfer starts, the drive detects transmission error and unfortunately does the right thing - reports transmission error via check sense. libata EH currently doesn't analyze sense data and simplify passes it to sr. sr knows transmission failure occurred but there isn't much it can do. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html