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rcutorture: Add more diagnostics in rcu_barrier() test failure case
author
Paul E. McKenney
<paulmck@linux.vnet.ibm.com>
Thu, 18 Dec 2014 02:39:54 +0000
(18:39 -0800)
committer
Paul E. McKenney
<paulmck@linux.vnet.ibm.com>
Sun, 11 Jan 2015 03:08:06 +0000
(19:08 -0800)
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/rcutorture.c
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diff --git
a/kernel/rcu/rcutorture.c
b/kernel/rcu/rcutorture.c
index
24142c2
..
30d42aa
100644
(file)
--- 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++;