Hello Tomasz, This appears remarkably simelar to what I'm experiencing, altough I'm getting that on sata ports. I'm currently at a loss on what caused this, but if there's two of us... ;-) See: http://marc.info/?l=linux-ide&m=118812690407577&w=2 What kind of hardware are you running? Kind regards, Joris - 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