diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2023-07-27 13:13:46 -0700 |
|---|---|---|
| committer | Frederic Weisbecker <frederic@kernel.org> | 2023-09-11 22:50:08 +0200 |
| commit | 92a708dc1fb8c33b0017ad77dc7ff6e434f96ee2 (patch) | |
| tree | af8b8b3a7251b02ac46d82e82fa31796c7aa9488 /kernel/rcu/tasks.h | |
| parent | 0bb80ecc33a8fb5a682236443c1e740d5c917d1d (diff) | |
rcu-tasks: Add printk()s to localize boot-time self-test hang
Currently, rcu_tasks_initiate_self_tests() prints a message and then
initiates self tests on up to three different RCU Tasks flavors. If one
of the flavors has a grace-period hang, it is not easy to work out which
of the three hung. This commit therefore prints a message prior to each
individual test.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Diffstat (limited to 'kernel/rcu/tasks.h')
| -rw-r--r-- | kernel/rcu/tasks.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 8d65f7d576a3..83049a893de5 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1979,20 +1979,22 @@ static void test_rcu_tasks_callback(struct rcu_head *rhp) static void rcu_tasks_initiate_self_tests(void) { - pr_info("Running RCU-tasks wait API self tests\n"); #ifdef CONFIG_TASKS_RCU + pr_info("Running RCU Tasks wait API self tests\n"); tests[0].runstart = jiffies; synchronize_rcu_tasks(); call_rcu_tasks(&tests[0].rh, test_rcu_tasks_callback); #endif #ifdef CONFIG_TASKS_RUDE_RCU + pr_info("Running RCU Tasks Rude wait API self tests\n"); tests[1].runstart = jiffies; synchronize_rcu_tasks_rude(); call_rcu_tasks_rude(&tests[1].rh, test_rcu_tasks_callback); #endif #ifdef CONFIG_TASKS_TRACE_RCU + pr_info("Running RCU Tasks Trace wait API self tests\n"); tests[2].runstart = jiffies; synchronize_rcu_tasks_trace(); call_rcu_tasks_trace(&tests[2].rh, test_rcu_tasks_callback); |