On Sat, Mar 16, 2013 at 2:14 AM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > We don't support different CPUs running at different frequencies with > the delay loop. Sorry. Does it means that a timer-based delay implementation must be used to get an accurate delay in SMP. I think it should print a warning message if the CPU delay loop is used in SMP. In my system, the wrong delay interval fluctuated with CPU frequencies caused a control problem. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html