diff --git a/[refs] b/[refs]
index b44deed9006f..7ab1c179122b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5d4b86594984d8746b01487c768d8548463c173f
+refs/heads/master: 661a85dc0d2ec0404e3b80909e413a9d5e42a239
diff --git a/trunk/kernel/rcutree.c b/trunk/kernel/rcutree.c
index 145f27fe3a1f..f0f3a18c0a20 100644
--- a/trunk/kernel/rcutree.c
+++ b/trunk/kernel/rcutree.c
@@ -52,6 +52,7 @@
 #include <linux/prefetch.h>
 #include <linux/delay.h>
 #include <linux/stop_machine.h>
+#include <linux/random.h>
 
 #include "rcutree.h"
 #include <trace/events/rcu.h>
@@ -1087,6 +1088,10 @@ static int rcu_gp_init(struct rcu_state *rsp)
 					    rnp->level, rnp->grplo,
 					    rnp->grphi, rnp->qsmask);
 		raw_spin_unlock_irq(&rnp->lock);
+#ifdef CONFIG_PROVE_RCU_DELAY
+		if ((random32() % (rcu_num_nodes * 8)) == 0)
+			schedule_timeout_uninterruptible(2);
+#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
 		cond_resched();
 	}