From: Steven Rostedt <rostedt@goodmis.org>
To: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-rt-users <linux-rt-users@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
John Kacur <jkacur@redhat.com>
Subject: Re: [ANNOUNCE] 3.14-rt1
Date: Wed, 23 Apr 2014 08:19:50 -0400 [thread overview]
Message-ID: <20140423081950.778e1a3a@gandalf.local.home> (raw)
In-Reply-To: <1398249425.5910.14.camel@marge.simpson.net>
On Wed, 23 Apr 2014 12:37:05 +0200
Mike Galbraith <umgwanakikbuti@gmail.com> wrote:
> On Fri, 2014-04-11 at 20:57 +0200, Sebastian Andrzej Siewior wrote:
>
> > This -RT series didn't crashed within ~4h testing on my ARM and
> > x86-32.
> > x86-64 crashed after I started hackbench. I figured out that the crash
> > does not happen with lazy-preempt disabled. Therefore the last but one
> > patch in the queue disables lazy preempt on x86-64. With this change the
> > test box survived ~2h without a crash. I look at this later but it looks
> > good now.
>
> I think the below fixes it (in a more or less minimalist way), but it's
> not very pretty. Methinks it would be prettier to either clone the x86
> percpu + fold logic, or neutralize that optimization completely when
> PREEMPT_LAZY is enabled.
>
> x86_32 bit is completely untested, x86_64 hasn't exploded.. yet :)
>
This patch makes sense to me.
Acked-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
next prev parent reply other threads:[~2014-04-23 12:19 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-11 18:57 [ANNOUNCE] 3.14-rt1 Sebastian Andrzej Siewior
2014-04-11 19:34 ` Pavel Vasilyev
2014-04-13 20:04 ` Pavel Vasilyev
2014-04-19 14:46 ` Mike Galbraith
2014-04-21 3:31 ` Mike Galbraith
2014-05-02 10:16 ` Sebastian Andrzej Siewior
2014-04-25 7:40 ` Mike Galbraith
2014-04-26 8:38 ` Mike Galbraith
2014-04-26 13:58 ` Mike Galbraith
2014-04-28 5:09 ` Mike Galbraith
2014-04-28 9:09 ` Mike Galbraith
2014-04-28 14:18 ` Steven Rostedt
2014-04-28 14:37 ` Mike Galbraith
2014-04-28 14:43 ` Mike Galbraith
2014-04-29 5:21 ` Mike Galbraith
2014-04-30 0:13 ` Steven Rostedt
2014-04-30 7:43 ` Mike Galbraith
2014-04-30 13:06 ` Mike Galbraith
2014-04-30 13:15 ` Steven Rostedt
2014-04-30 14:00 ` Mike Galbraith
2014-04-30 14:19 ` Steven Rostedt
2014-04-30 14:33 ` Steven Rostedt
2014-04-30 14:54 ` Mike Galbraith
2014-04-30 15:11 ` Steven Rostedt
2014-04-30 15:15 ` Mike Galbraith
2014-04-30 15:48 ` Steven Rostedt
2014-04-30 15:56 ` Mike Galbraith
2014-05-01 17:36 ` Mike Galbraith
2014-05-01 18:42 ` Steven Rostedt
2014-05-02 1:45 ` Mike Galbraith
2014-04-30 15:21 ` Mike Galbraith
2014-04-30 14:45 ` Mike Galbraith
2014-05-02 10:09 ` Sebastian Andrzej Siewior
2014-05-02 11:16 ` Mike Galbraith
2014-04-23 10:37 ` Mike Galbraith
2014-04-23 12:19 ` Steven Rostedt [this message]
2014-04-24 4:06 ` Mike Galbraith
2014-04-24 7:12 ` Sebastian Andrzej Siewior
2014-04-24 7:26 ` Mike Galbraith
2014-04-26 18:29 ` Fernando Lopez-Lezcano
2014-05-02 11:37 ` Sebastian Andrzej Siewior
2014-05-15 17:51 ` Fernando Lopez-Lezcano
2014-05-15 20:09 ` Fernando Lopez-Lezcano
2014-05-01 20:32 ` [PATCH]Fix the Compiling failed problem with the default arch/x86/configs/x86_64_defconfig(3.14-rt1) eagle.rtlinux
2014-05-09 14:57 ` Sebastian Andrzej Siewior
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