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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-05-16 16:15:16 -0700
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-05-28 09:06:09 -0700
commit34aa34b818407bd475786cf160f7838b7a485e87 (patch)
tree754d109eb2eb9232989a52c608741ff08856c734 /kernel
parentb93c765fda30cadae6aafb9d32a30f9391dc0b41 (diff)
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rcutorture: Dump trace buffer for callback pipe drain failures
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcu/rcutorture.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 6b803fb2f7ca..89be0f492f78 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1060,8 +1060,10 @@ rcu_torture_writer(void *arg)
for (i = 0; i < ARRAY_SIZE(rcu_tortures); i++)
if (list_empty(&rcu_tortures[i].rtort_free) &&
rcu_access_pointer(rcu_torture_current) !=
- &rcu_tortures[i])
+ &rcu_tortures[i]) {
+ rcu_ftrace_dump(DUMP_ALL);
WARN(1, "%s: rtort_pipe_count: %d\n", __func__, rcu_tortures[i].rtort_pipe_count);
+ }
} while (!torture_must_stop());
/* Reset expediting back to unexpedited. */
if (expediting > 0)