1CONFIG_SMP=y 2CONFIG_NR_CPUS=2 3CONFIG_HOTPLUG_CPU=y 4CONFIG_PREEMPT_NONE=n 5CONFIG_PREEMPT_VOLUNTARY=n 6CONFIG_PREEMPT=y 7CONFIG_DEBUG_LOCK_ALLOC=y 8CONFIG_PROVE_LOCKING=n 9#CHECK#CONFIG_PROVE_RCU=n 10CONFIG_RCU_EXPERT=y 11