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From: Thomas Gleixner <tglx@linutronix.de>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: kernel test robot <xiaolong.ye@intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	lkp@01.org
Subject: Re: [lkp-robot] [torture] b151f93a71: INFO:rcu_preempt_detected_stalls_on_CPUs/tasks
Date: Tue, 28 Nov 2017 18:10:08 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.20.1711281809200.2222@nanos> (raw)
In-Reply-To: <20171128170759.GU3624@linux.vnet.ibm.com>

On Tue, 28 Nov 2017, Paul E. McKenney wrote:
> On Tue, Nov 28, 2017 at 05:47:35PM +0100, Thomas Gleixner wrote:
> diff --git a/kernel/time/timer.c b/kernel/time/timer.c
> index db774b0f217e..a3321bb565db 100644
> --- a/kernel/time/timer.c
> +++ b/kernel/time/timer.c
> @@ -1803,7 +1803,7 @@ signed long __sched schedule_timeout(signed long timeout)
>  		idx = timer_get_idx(&timer.timer);
>  		idx_now = calc_wheel_index(j, base->clk);
>  		raw_spin_unlock_irqrestore(&base->lock, flags);
> -		pr_info("%s: Waylayed timer idx: %u idx_now: %u\n", __func__, idx, idx_now);
> +		pr_info("%s: Waylayed timer base->clk: %#lx jiffies: %#lx base->next_expiry: %#lx timer->flags: %#x timer->expires %#lx idx: %u idx_now: %u\n", __func__, base->clk, j, base->next_expiry, timer.timer.flags, timer.timer.expires, idx, idx_now);

Please print idx and idx_now as hex values. It's simpler to decode that way.

Thanks,

	tglx

  reply	other threads:[~2017-11-28 17:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-26  8:42 [lkp-robot] [torture] b151f93a71: INFO:rcu_preempt_detected_stalls_on_CPUs/tasks kernel test robot
2017-11-27 21:57 ` Paul E. McKenney
2017-11-27  2:48   ` Ye Xiaolong
2017-11-28 14:16   ` Thomas Gleixner
2017-11-28 16:41     ` Paul E. McKenney
2017-11-28 16:47       ` Thomas Gleixner
2017-11-28 17:07         ` Paul E. McKenney
2017-11-28 17:10           ` Thomas Gleixner [this message]
2017-11-28 17:35             ` Paul E. McKenney
2017-11-28 20:46               ` Paul E. McKenney
2017-11-28 21:08                 ` Paul E. McKenney
2017-11-29 19:08                   ` Paul E. McKenney
2017-11-29 22:07                     ` Paul E. McKenney
2017-11-29 22:38                       ` Paul E. McKenney
2017-12-01  0:45                         ` Paul E. McKenney
2017-11-28 16:52       ` Paul E. McKenney

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