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From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
	rostedt@goodmis.org, "Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH 5/5] rcutorture: Print only one rtort_pipe_count splat
Date: Thu,  8 May 2025 16:45:02 -0700	[thread overview]
Message-ID: <20250508234502.1996788-5-paulmck@kernel.org> (raw)
In-Reply-To: <a942066a-85cb-4932-b4de-0ee39287ab7d@paulmck-laptop>

The rcu_torture_writer() function scans the memory blocks after a stutter
(or forced idle) interval, complaining about any that have not passed
through ten grace periods since the start of the stutter interval.
But one splat suffices, so this commit therefore stops at the first splat.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 kernel/rcu/rcutorture.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 62f082e24d3b9..2699f47557bf7 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1781,6 +1781,7 @@ rcu_torture_writer(void *arg)
 						cur_ops->gp_kthread_dbg();
 					WARN(1, "%s: rtort_pipe_count: %d\n", __func__, rcu_tortures[i].rtort_pipe_count);
 					rcu_ftrace_dump(DUMP_ALL);
+					break;
 				}
 		if (stutter_waited)
 			sched_set_normal(current, oldnice);
-- 
2.40.1


  parent reply	other threads:[~2025-05-08 23:45 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-08 23:44 [PATCH 0/5] Miscellaneous rcutorture updates Paul E. McKenney
2025-05-08 23:44 ` [PATCH 1/5] torture: Suppress torture.sh "Zero time" messages for disabled tests Paul E. McKenney
2025-05-08 23:44 ` [PATCH 2/5] rcutorture: Print number of RCU up/down readers and migrations Paul E. McKenney
2025-05-08 23:45 ` [PATCH 3/5] rcutorture: Check for no up/down readers at task level Paul E. McKenney
2025-05-08 23:45 ` [PATCH 4/5] rcutorture: Start rcu_torture_writer() after rcu_torture_reader() Paul E. McKenney
2025-05-08 23:45 ` Paul E. McKenney [this message]
2025-05-09 13:16 ` [PATCH 0/5] Miscellaneous rcutorture updates Joel Fernandes

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