linux-kernel - Re: [PATCH] NOHZ, check to see if tick device is initialized in IRQ handling path

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Message-ID: <5183BF01.9010805@redhat.com>
Date:	Fri, 03 May 2013 09:43:29 -0400
From:	Prarit Bhargava <prarit@...hat.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	LKML <linux-kernel@...r.kernel.org>,
	John Stultz <john.stultz@...aro.org>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Dave Jones <davej@...emonkey.org.uk>
Subject: Re: [PATCH] NOHZ, check to see if tick device is initialized in IRQ
 handling path



On 05/03/2013 09:02 AM, Thomas Gleixner wrote:
> On Fri, 3 May 2013, Prarit Bhargava wrote:
>> Down a cpu and then bring it back up.
> 
> Ahhhh. So the issue is, that we do not clear the per cpu ts->inidle
> and friends when we bring the cpu down.
> 

:)  I'll give this a shot and will update with testing results.

Thanks tglx!

P.
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