On Sat, Nov 21, 2015 at 01:02:02AM -0800, Lianwei Wang wrote: > The rcu_idle_endter may call wakeup_softirqd to set the need resched > flag on idle process. But if we don't check it after that, then the > cpu will enter idle state with RESCHED flag set and can not be woken > up by wakeup/resched call anymore.
Fair enough; but which cpuidle driver did you observe that with? All the ones I checked test for need_resched again after this. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
