From 8dd3b54689d9a2103c0817f2b7adc51760a45551 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 3 Oct 2018 11:02:05 -0700 Subject: [PATCH] rcutorture: Print GP age upon forward-progress failure Signed-off-by: Paul E. McKenney --- kernel/rcu/tree.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 90a67c75a447..f91631541965 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2682,6 +2682,8 @@ void rcu_fwd_progress_check(unsigned long j) struct rcu_data *rdp; if (rcu_gp_in_progress()) { + pr_info("%s: GP age %lu jiffies\n", + __func__, jiffies - rcu_state.gp_start); show_rcu_gp_kthreads(); } else { preempt_disable(); -- 2.45.2