From: rostedt@goodmis.org (Steven Rostedt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH arm 1/1] arm: Use _rcuidle tracepoint to allow use from idle
Date: Tue, 26 Apr 2016 16:52:17 -0400 [thread overview]
Message-ID: <20160426165217.5b46eea7@gandalf.local.home> (raw)
In-Reply-To: <20160426204613.GT5995@atomide.com>
On Tue, 26 Apr 2016 13:46:15 -0700
Tony Lindgren <tony@atomide.com> wrote:
> [ INFO: suspicious RCU usage. ]
> 4.6.0-rc5-next-20160426+ #1127 Not tainted
> -------------------------------
> include/trace/events/clk.h:45 suspicious rcu_dereference_check() usage!
>
> other info that might help us debug this:
>
>
> RCU used illegally from idle CPU!
> rcu_scheduler_active = 1, debug_locks = 0
> RCU used illegally from extended quiescent state!
> 2 locks held by swapper/0/0:
> #0: (&oh->hwmod_key#30){......}, at: [<c0121afc>] omap_hwmod_enable+0x18/0x44
> #1: (enable_lock){......}, at: [<c0630684>] clk_enable_lock+0x18/0x124
>
Hah! I knew that mole would show up.
-- Steve
next prev parent reply other threads:[~2016-04-26 20:52 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-25 20:48 [PATCH arm 1/1] arm: Use _rcuidle tracepoint to allow use from idle Paul E. McKenney
2016-04-26 15:00 ` Tony Lindgren
2016-04-26 17:52 ` Paul E. McKenney
2016-04-26 18:29 ` Tony Lindgren
2016-04-26 19:07 ` Paul E. McKenney
2016-04-26 19:39 ` Tony Lindgren
2016-04-26 19:44 ` Steven Rostedt
2016-04-26 19:51 ` Paul E. McKenney
2016-04-26 19:52 ` Steven Rostedt
2016-04-26 20:06 ` Paul E. McKenney
2016-04-26 19:51 ` Tony Lindgren
2016-04-26 20:06 ` Paul E. McKenney
2016-04-26 20:11 ` Paul E. McKenney
2016-04-26 20:25 ` Tony Lindgren
2016-04-26 20:41 ` Paul E. McKenney
2016-04-26 20:46 ` Tony Lindgren
2016-04-26 20:52 ` Steven Rostedt [this message]
2016-04-26 21:08 ` Paul E. McKenney
2016-04-26 21:04 ` Paul E. McKenney
2016-04-26 21:12 ` Tony Lindgren
2016-04-26 21:26 ` Paul E. McKenney
2016-04-26 21:36 ` Tony Lindgren
2016-04-26 20:16 ` Steven Rostedt
2016-04-26 20:36 ` Paul E. McKenney
2016-04-26 19:47 ` Paul E. McKenney
2016-04-26 19:17 ` Steven Rostedt
2016-04-26 19:41 ` Tony Lindgren
2016-04-26 19:42 ` Paul E. McKenney
2016-04-26 19:49 ` Steven Rostedt
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