sysrq_rcu         698 kernel/rcu/tree_stall.h static bool sysrq_rcu;
sysrq_rcu         699 kernel/rcu/tree_stall.h module_param(sysrq_rcu, bool, 0444);
sysrq_rcu         716 kernel/rcu/tree_stall.h 	if (sysrq_rcu)