> Reloading the pata_pdc2027x module then the problem goes away. > I guess maybe somehow mdelay() is not as precise as before... It's not the most accurate of things once power management and the like get invovled. HT doesn't help it either. You should have get much more accurate timing information if you query gettimeofday before/after and do a few loops. 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