1CONFIG_SMP=n 2CONFIG_PREEMPT_NONE=y 3CONFIG_PREEMPT_VOLUNTARY=n 4CONFIG_PREEMPT=n 5CONFIG_PREEMPT_DYNAMIC=n 6#CHECK#CONFIG_TASKS_RCU=y 7CONFIG_FORCE_TASKS_RCU=y 8CONFIG_RCU_EXPERT=y 9