From: Steven Rostedt <rostedt@goodmis.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Joel Fernandes <joel@joelfernandes.org>,
Tom Zanussi <zanussi@kernel.org>
Subject: Re: [PATCH] tracing: Add trace_trigger kernel command line option
Date: Thu, 20 Oct 2022 14:53:40 -0400 [thread overview]
Message-ID: <20221020145340.5feef48f@gandalf.local.home> (raw)
In-Reply-To: <20221020175512.GT5600@paulmck-ThinkPad-P17-Gen-1>
On Thu, 20 Oct 2022 10:55:12 -0700
"Paul E. McKenney" <paulmck@kernel.org> wrote:
> > synchronize_rcu() {
> > rcu_poll_gp_seq_start_unlocked() {
> > struct rcu_node *rnp = rcu_get_root();
> >
> > if (rcu_init_invoked()) {
> > lockdep_assert_irqs_enabled();
> > raw_spin_lock_irq_rcu_node(rnp);
> > }
> > rcu_poll_gp_seq_start(snap);
> > if (rcu_init_invoked())
> > raw_spin_unlock_irq_rcu_node(rnp); <<-- Interrupts enabled here
> > }
>
> Thank you for digging into this!
>
> Does the following help?
It does indeed!
I can remove the early_boot_irqs_disabled checks if you can add this to
this rc cycle and mark it stable.
-- Steve
next prev parent reply other threads:[~2022-10-20 18:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 0:01 [PATCH] tracing: Add trace_trigger kernel command line option Steven Rostedt
2022-10-20 0:07 ` Steven Rostedt
2022-10-20 15:59 ` Paul E. McKenney
2022-10-20 16:33 ` Steven Rostedt
2022-10-20 16:44 ` Joel Fernandes
2022-10-20 17:05 ` Steven Rostedt
2022-10-20 17:55 ` Paul E. McKenney
2022-10-20 18:53 ` Steven Rostedt [this message]
2022-10-20 22:21 ` Paul E. McKenney
2022-10-20 22:23 ` Steven Rostedt
2022-10-20 17:54 ` Paul E. McKenney
2022-10-20 7:49 ` kernel test robot
2022-10-20 8:50 ` kernel test robot
2022-10-20 14:33 ` Masami Hiramatsu
2022-10-20 15:20 ` Steven Rostedt
2022-10-20 14:43 ` Joel Fernandes
2022-10-20 14:52 ` Joel Fernandes
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