1CONFIG_SMP=y 2CONFIG_PREEMPT_NONE=y 3CONFIG_PREEMPT_VOLUNTARY=n 4CONFIG_PREEMPT=n 5CONFIG_HZ_PERIODIC=n 6CONFIG_NO_HZ_IDLE=y 7CONFIG_NO_HZ_FULL=n 8CONFIG_RCU_NOCB_CPU=n 9CONFIG_DEBUG_LOCK_ALLOC=n 10CONFIG_PROVE_LOCKING=n 11CONFIG_RCU_BOOST=n 12CONFIG_DEBUG_OBJECTS_RCU_HEAD=n 13CONFIG_RCU_EXPERT=y 14CONFIG_RCU_TRACE=y 15