rcutree.gp_preinit_delay=3 rcutree.gp_init_delay=3 rcutree.gp_cleanup_delay=3 rcupdate.rcu_self_test=1 # This part is for synchronize_rcu() testing rcutorture.nfakewriters=-1 rcutorture.gp_sync=1 rcupdate.rcu_normal=1 rcutree.rcu_normal_wake_from_gp=1