From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Thomas Gleixner <tglx@linutronix.de>
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: Fri, 22 Dec 2017 09:09:07 -0800 [thread overview]
Message-ID: <20171222170907.GJ7829@linux.vnet.ibm.com> (raw)
In-Reply-To: <20171222145111.919609918@linutronix.de>
On Fri, Dec 22, 2017 at 03:51:11PM +0100, Thomas Gleixner wrote:
> Paul was observing weird stalls which are hard to reproduce and decode. We
> were finally able to reproduce and decode the wreckage on RT.
>
> The following series addresses the issues and hopefully nails the root
> cause completely.
>
> Please review carefully and expose it to the dreaded rcu torture tests
> which seem to be the only way to trigger it.
Best Christmas present ever, thank you!!!
Just started up three concurrent 10-hour runs of the infamous rcutorture
TREE01 scenario, and will let you know how it goes!
Thanx, Paul
next prev parent reply other threads:[~2017-12-22 17:08 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 ` Paul E. McKenney [this message]
2017-12-24 1:21 ` [patch 0/4] timer/nohz: Fix timer/nohz woes 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
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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