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Date: Mon, 09 Mar 2015 15:36:11 +0100 From: Mike Galbraith <umgwanakikbuti@...il.com> To: Sebastian Andrzej Siewior <bigeasy@...utronix.de> Cc: linux-rt-users <linux-rt-users@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de>, rostedt@...dmis.org, John Kacur <jkacur@...hat.com> Subject: Re: [patch-3.18.7-rt1] sched/context-tracking: fix PREEMPT_LAZY explosions 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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