> It seems that ide_cmd646 causes serialization of interfaces in init_irq()... > Would be great if somebody could comment more on the reasons for ide_cmd646. No idea but various CMD64x chips had problems cured by serializing stuff - notably on some HP boxes. Alan - 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