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From: Kunwu Chan <kunwu.chan@gmail.com>
To: dave@stgolabs.net, paulmck@kernel.org, josh@joshtriplett.org,
	frederic@kernel.org, neeraj.upadhyay@kernel.org,
	joelagnelf@nvidia.com, boqun@kernel.org, urezki@gmail.com
Cc: rostedt@goodmis.org, mathieu.desnoyers@efficios.com,
	jiangshanlai@gmail.com, qiang.zhang@linux.dev,
	linux-kernel@vger.kernel.org, rcu@vger.kernel.org,
	Kunwu Chan <kunwu.chan@gmail.com>,
	Kunwu Chan <chentao@kylinos.cn>
Subject: [PATCH 3/5] rcutorture: Test duplicate call_rcu_tasks_trace() callback enqueue
Date: Fri,  6 Nov 2026 22:39:11 +0800	[thread overview]
Message-ID: <20261106143913.3627722-4-kunwu.chan@gmail.com> (raw)
In-Reply-To: <20261106143913.3627722-1-kunwu.chan@gmail.com>

The rcu_test_debug_objects() function tests duplicate-callback
detection, but only for torture types whose ->debug_objects field
is set.  This commit therefore sets ->debug_objects for the
"tasks-tracing" torture type so that duplicate call_rcu_tasks_trace()
invocations are detected.  The detection itself is provided by
__call_srcu() because call_rcu_tasks_trace() is implemented
in terms of call_srcu().

Suggested-by: Zqiang <qiang.zhang@linux.dev>
Cc: Kunwu Chan <kunwu.chan@gmail.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
---
 kernel/rcu/rcutorture.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index a056a79aa3d2..5ee9e70a6199 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1315,6 +1315,7 @@ static struct rcu_torture_ops tasks_tracing_ops = {
 	.irq_capable	= 1,
 	.slow_gps	= 1,
 	.nmi_capable	= 1,
+	.debug_objects	= 1,
 	.name		= "tasks-tracing"
 };
 
-- 
2.43.0


  parent reply	other threads:[~2026-11-06 14:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-06 14:39 [PATCH 0/5] rcu: Record callback enqueue stacks and add torture tests Kunwu Chan
2026-11-06 14:39 ` [PATCH 1/5] rcu-tasks: Record callback enqueue stack Kunwu Chan
2026-11-06 14:39 ` [PATCH 2/5] rcutorture: Test duplicate call_rcu_tasks() callback enqueue Kunwu Chan
2026-11-06 14:39 ` Kunwu Chan [this message]
2026-11-06 14:39 ` [PATCH 4/5] rcu: Add KASAN aux-stack verification test Kunwu Chan
2026-11-06 14:39 ` [PATCH 5/5] rcutorture: Add KASAN aux-stack verification scenarios Kunwu Chan
2026-11-06 18:49 ` [PATCH 0/5] rcu: Record callback enqueue stacks and add torture tests Joel Fernandes
2026-11-06 21:11   ` Paul E. McKenney
2026-11-07  4:20     ` Zqiang
2026-11-09  2:40       ` KunWu Chan

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