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From: Frederic Weisbecker <fweisbec@gmail.com>
To: Catalin Iacob <iacobcatalin@gmail.com>
Cc: Dave Jones <davej@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: nohz fail (was: perf related boot hang.)
Date: Thu, 4 Sep 2014 22:17:55 +0200	[thread overview]
Message-ID: <20140904201752.GA3116@lerouge> (raw)
In-Reply-To: <CAHg_5gr_tHeBsQfv1ydZRq9XgKipcrbijripqubE6c6j1S=jfg@mail.gmail.com>

On Thu, Sep 04, 2014 at 10:07:37PM +0200, Catalin Iacob wrote:
> On Tue, Sep 2, 2014 at 8:23 PM, Catalin Iacob <iacobcatalin@gmail.com> wrote:
> > On Mon, Sep 1, 2014 at 10:14 PM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> >> I'll send "nohz: Restore NMI safe local irq work for local nohz kick"
> >> as a fix for 3.17 and the rest will have to wait for 3.18 as it's a complicated
> >> fix for a long standing bug.
> >
> > I've been running with the full series since you sent it and haven't
> > experienced the bug since. I'll try to test with just the 3.17 patch
> > to also check that it's enough on its own.
> 
> I tested with just "nohz: Restore NMI safe local irq work for local
> nohz kick" on top of 7505ceaf8635 (which is 3.17-rc3 plus the merge of
> 1 commit) and unfortunately it doesn't fix the issue. I got the same
> panic after some minutes of building Firefox.

Yeah, that's expected. You need to apply the nine patches on top of -rc1:

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
        nohz/fixes

"nohz: Restore NMI safe local irq work for local nohz kick" only fixes
part of the issue.

Thanks.

  reply	other threads:[~2014-09-04 20:17 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-06 14:36 perf related boot hang Dave Jones
2014-08-06 16:19 ` Peter Zijlstra
2014-08-06 16:23   ` Dave Jones
2014-08-06 19:46   ` Dave Jones
2014-08-07  9:03     ` nohz fail (was: perf related boot hang.) Peter Zijlstra
2014-08-07 13:16       ` Frederic Weisbecker
2014-08-11 20:09         ` Dave Jones
2014-08-20 20:31           ` Catalin Iacob
2014-08-21 14:56             ` Frederic Weisbecker
2014-08-22  6:01               ` Catalin Iacob
2014-08-22 14:00                 ` Dave Jones
2014-09-01 20:14                   ` Frederic Weisbecker
2014-09-02 13:41                     ` Dave Jones
2014-09-02 18:23                     ` Catalin Iacob
2014-09-04 20:07                       ` Catalin Iacob
2014-09-04 20:17                         ` Frederic Weisbecker [this message]
2014-09-04 21:05                           ` Catalin Iacob
2014-09-04 21:29                             ` Frederic Weisbecker

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