diff options
| -rw-r--r-- | kernel/rcu/rcutorture.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 9b81e21c75d1..61b092a3dc3f 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -268,6 +268,7 @@ static int err_segs_recorded; static struct rt_read_seg err_segs[RCUTORTURE_RDR_MAX_SEGS]; static int rt_read_nsegs; static int rt_read_preempted; +static int rt_last_cpu; static const char *rcu_torture_writer_state_getname(void) { @@ -2108,6 +2109,8 @@ static bool rcu_torture_one_read(struct torture_random_state *trsp, long myid) } if (cur_ops->reader_blocked) preempted = cur_ops->reader_blocked(); + if (IS_ENABLED(CONFIG_RCU_TORTURE_TEST_LOG_CPU)) + rt_last_cpu = raw_smp_processor_id(); rcutorture_one_extend(&readstate, 0, trsp, rtrsp); WARN_ON_ONCE(readstate); // This next splat is expected behavior if leakpointer, especially @@ -3580,6 +3583,8 @@ rcu_torture_cleanup(void) } if (rt_read_preempted) pr_alert("\tReader was preempted.\n"); + if (IS_ENABLED(CONFIG_RCU_TORTURE_TEST_LOG_CPU)) + pr_alert("\tReader last ran on CPU %d.\n", rt_last_cpu); } if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error) rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE"); |