[PATCH tip/core/rcu 12/12] rcutorture: Add more diagnostics in rcu_barrier() test failure case
From: Paul E. McKenney
Date: Wed Jan 07 2015 - 13:21:19 EST
From: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/rcutorture.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 24142c200901..30d42aa55d83 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1427,6 +1427,9 @@ static int rcu_torture_barrier(void *arg)
cur_ops->cb_barrier(); /* Implies smp_mb() for wait_event(). */
if (atomic_read(&barrier_cbs_invoked) != n_barrier_cbs) {
n_rcu_torture_barrier_error++;
+ pr_err("barrier_cbs_invoked = %d, n_barrier_cbs = %d\n",
+ atomic_read(&barrier_cbs_invoked),
+ n_barrier_cbs);
WARN_ON_ONCE(1);
}
n_barrier_successes++;
--
1.8.1.5
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