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From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	rostedt@goodmis.org, John Kacur <jkacur@redhat.com>
Subject: Re: [patch-3.18.7-rt1] sched/context-tracking: fix PREEMPT_LAZY explosions
Date: Mon, 09 Mar 2015 15:36:11 +0100	[thread overview]
Message-ID: <1425911771.30469.8.camel@gmail.com> (raw)
In-Reply-To: <20150309134535.GA13768@linutronix.de>

On Mon, 2015-03-09 at 14:45 +0100, Sebastian Andrzej Siewior wrote:
> * Mike Galbraith | 2015-02-18 12:21:54 [+0100]:
> 
> >On Mon, 2015-02-16 at 12:18 +0100, Sebastian Andrzej Siewior wrote:
> >
> >> Known issues:
> >>
> >>       - lazy preempt on x86_64 leads to a crash with some load.
> >
> >The below still works for me.  (it doesn't make nohz_full actually work
> >in rt, but at least folks who want to tinker with it can do so)
> So your box still crashes without it?
> 
> The thing is I tried to reproduce it and it does not occur anymore.
> Neither in KVM nor on real HW.

Heh, well that's interesting, I just presumed it would still explode
because you said it would.  I'll beat on it any let you know if I'm
carrying a placebo patch or not :)

	-Mike

  reply	other threads:[~2015-03-09 14:36 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-16 11:18 [ANNOUNCE] 3.18.7-rt1 Sebastian Andrzej Siewior
2015-02-16 18:13 ` Sebastian Andrzej Siewior
2015-02-16 20:12 ` Richard Cochran
2015-02-16 20:21   ` Steven Rostedt
2015-02-17  8:37 ` Daniel Wagner
2015-02-19  9:36   ` Joakim Hernberg
2015-02-25 13:55     ` Sebastian Andrzej Siewior
2015-02-26  8:48       ` Sebastian Andrzej Siewior
2015-02-27  6:40         ` Daniel Wagner
2015-02-27  7:58           ` Sebastian Andrzej Siewior
2015-02-18 11:21 ` [patch-3.18.7-rt1] sched/context-tracking: fix PREEMPT_LAZY explosions Mike Galbraith
2015-02-18 11:27   ` [rfc patch-3.18.7-rt1] rt/nohz_full: Fix can_stop_full_tick() gripe within softirq Mike Galbraith
2015-02-19  4:50     ` Mike Galbraith
2015-02-19  6:30   ` [patch-3.18.7-rt1] sched/context-tracking: fix PREEMPT_LAZY explosions Mike Galbraith
2015-03-09 13:45   ` Sebastian Andrzej Siewior
2015-03-09 14:36     ` Mike Galbraith [this message]
2015-03-09 14:45       ` Sebastian Andrzej Siewior
2015-03-10  9:35       ` Mike Galbraith
2015-03-11  6:18         ` Mike Galbraith
2015-03-12  9:38         ` [rfc patch] rt,nohz_full: fix nohz_full for PREEMPT_RT_FULL Mike Galbraith
2015-03-12 15:09           ` Steven Rostedt
2015-03-13  2:13             ` Mike Galbraith
2015-03-13  3:03               ` Steven Rostedt
2015-03-13  4:53           ` [rfc patch v2] " Mike Galbraith
2015-03-16 20:24             ` Sebastian Andrzej Siewior
2015-03-17  1:53               ` Mike Galbraith
2015-03-17  4:45                 ` Mike Galbraith
2015-04-10 14:15             ` Sebastian Andrzej Siewior
2015-04-10 14:24               ` Mike Galbraith
2015-04-10 14:28               ` Mike Galbraith
2015-04-11 13:15               ` Mike Galbraith
2015-04-11 13:36                 ` Mike Galbraith
2015-04-11 14:22                   ` Mike Galbraith
2015-04-13  9:43                   ` Sebastian Andrzej Siewior
2015-04-13  9:41                 ` Sebastian Andrzej Siewior
2015-02-18 14:09 ` [patch-3.18.7-rt1] snd/pcm: fix snd_pcm_stream_lock*() irqs_disabled() splats Mike Galbraith
2015-02-25 14:08   ` Sebastian Andrzej Siewior
2015-02-18 15:05 ` [patch-3.18.7-rt1]sunrpc: make svc_xprt_do_enqueue() use get_cpu_light() Mike Galbraith
2015-02-25 14:14   ` Sebastian Andrzej Siewior

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