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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-12-17 18:39:54 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-01-10 19:08:06 -0800
commit7602de4af192b1527767538454557cb7564bae60 (patch)
tree5cf90f1583d36360f104b80e8cde92f6cf16494f /kernel/rcu
parentd2f74b5b488dd2b283977f64844fee3ba91676db (diff)
rcutorture: Add more diagnostics in rcu_barrier() test failure case
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/rcutorture.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 24142c20090..30d42aa55d8 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++;