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| author | Paul E. McKenney <paulmck@kernel.org> | 2024-02-19 17:00:31 -0800 |
|---|---|---|
| committer | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2024-04-09 15:10:13 +0200 |
| commit | 0a0467af0a4d8b4e3832945d1cc287d1cb52573e (patch) | |
| tree | 606bdd5ad7cbe48da23e13eaaaeee102fcd0d82a /kernel/rcu | |
| parent | 1a140b46da8f3be8e55fbd0950653c9a235b6ce9 (diff) | |
| download | lwn-0a0467af0a4d8b4e3832945d1cc287d1cb52573e.tar.gz lwn-0a0467af0a4d8b4e3832945d1cc287d1cb52573e.zip | |
rcutorture: Dump # online CPUs on insufficient cb-flood laundering
This commit adds the number of online CPUs to the state dump following
an unsuccesful callback-flood test.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/rcutorture.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 45d6b4c3d199..6611ef3e71c3 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -2833,12 +2833,12 @@ static void rcu_torture_fwd_prog_cr(struct rcu_fwd *rfp) if (!torture_must_stop() && !READ_ONCE(rcu_fwd_emergency_stop) && !shutdown_time_arrived()) { WARN_ON(n_max_gps < MIN_FWD_CBS_LAUNDERED); - pr_alert("%s Duration %lu barrier: %lu pending %ld n_launders: %ld n_launders_sa: %ld n_max_gps: %ld n_max_cbs: %ld cver %ld gps %ld\n", + pr_alert("%s Duration %lu barrier: %lu pending %ld n_launders: %ld n_launders_sa: %ld n_max_gps: %ld n_max_cbs: %ld cver %ld gps %ld #online %u\n", __func__, stoppedat - rfp->rcu_fwd_startat, jiffies - stoppedat, n_launders + n_max_cbs - n_launders_cb_snap, n_launders, n_launders_sa, - n_max_gps, n_max_cbs, cver, gps); + n_max_gps, n_max_cbs, cver, gps, num_online_cpus()); atomic_long_add(n_max_cbs, &rcu_fwd_max_cbs); mutex_lock(&rcu_fwd_mutex); // Serialize histograms. rcu_torture_fwd_cb_hist(rfp); |