linux-kernel - Re: nohz fail (was: perf related boot hang.)

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Date:	Thu, 4 Sep 2014 22:07:37 +0200
From:	Catalin Iacob <iacobcatalin@...il.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Dave Jones <davej@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: nohz fail (was: perf related boot hang.)

On Tue, Sep 2, 2014 at 8:23 PM, Catalin Iacob <iacobcatalin@...il.com> wrote:
> On Mon, Sep 1, 2014 at 10:14 PM, Frederic Weisbecker <fweisbec@...il.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.
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