diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index b07be37..525d398 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -489,6 +489,10 @@
 	       smp_processor_id(), (long)(jiffies - rsp->gp_start));
 	trigger_all_cpu_backtrace();
 
+	/* If so configured, complain about tasks blocking the grace period. */
+
+	rcu_print_detail_task_stall(rsp);
+
 	force_quiescent_state(rsp, 0);  /* Kick them all. */
 }