Symbol: RCU_NEST_PMAX
kernel/rcu/tree_plugin.h
416
WARN_ON_ONCE(rcu_preempt_depth() > RCU_NEST_PMAX);
kernel/rcu/tree_plugin.h
443
WARN_ON_ONCE(rrln < 0 || rrln > RCU_NEST_PMAX);