From: Thomas Gleixner <tglx@linutronix.de>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Anna-Maria Gleixner <anna-maria@linutronix.de>,
Sebastian Siewior <bigeasy@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: [patch 0/4] timer/nohz: Fix timer/nohz woes
Date: Sat, 6 Jan 2018 22:18:40 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1801062215570.2376@nanos> (raw)
In-Reply-To: <20180105194150.GA24831@linux.vnet.ibm.com>
On Fri, 5 Jan 2018, Paul E. McKenney wrote:
> But after more than 1,000 hours of test runs, split roughly evenly
> among the above three scenarios, there is no statistically significant
> difference in error rate among them. This means that there is some
> other bug lurking somewhere, and having the same appearance (lost timer).
> Were you guys ever able to reproduce this via rcutorture?
No.
We'll setup more testing on Monday. Which of the tests fails or at least
exposes the highest failure rate?
Thanks,
tglx
next prev parent reply other threads:[~2018-01-06 21:18 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-22 14:51 [patch 0/4] timer/nohz: Fix timer/nohz woes Thomas Gleixner
2017-12-22 14:51 ` [patch 1/4] timer: Use deferrable base independent of base::nohz_active Thomas Gleixner
2017-12-25 16:24 ` Frederic Weisbecker
2017-12-29 22:45 ` [tip:timers/urgent] timers: " tip-bot for Anna-Maria Gleixner
2017-12-22 14:51 ` [patch 2/4] nohz: Prevent erroneous tick stop invocations Thomas Gleixner
2017-12-26 15:17 ` Frederic Weisbecker
2017-12-27 18:22 ` Thomas Gleixner
2017-12-27 18:24 ` Thomas Gleixner
2017-12-27 20:58 ` Thomas Gleixner
2017-12-29 16:12 ` Frederic Weisbecker
2017-12-29 22:46 ` [tip:timers/urgent] nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() tip-bot for Thomas Gleixner
2017-12-22 14:51 ` [patch 3/4] timer: Invoke timer_start_debug() where it makes sense Thomas Gleixner
2017-12-29 22:47 ` [tip:timers/urgent] timers: " tip-bot for Thomas Gleixner
2017-12-22 14:51 ` [patch 4/4] timerqueue: Document return values of timerqueue_add/del() Thomas Gleixner
2017-12-29 22:47 ` [tip:timers/urgent] " tip-bot for Thomas Gleixner
2017-12-22 17:09 ` [patch 0/4] timer/nohz: Fix timer/nohz woes Paul E. McKenney
2017-12-24 1:21 ` Paul E. McKenney
2017-12-24 1:29 ` Paul E. McKenney
2018-01-05 19:41 ` Paul E. McKenney
2018-01-06 21:18 ` Thomas Gleixner [this message]
2018-01-06 23:21 ` Paul E. McKenney
2017-12-27 20:55 ` Thomas Gleixner
2017-12-29 22:46 ` [tip:timers/urgent] timers: Reinitialize per cpu bases on hotplug tip-bot for Thomas Gleixner
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