linux-kernel - RE: [PATCH 2/2] Export not_critical_when_idle feature in workqueue and use it in ondemand

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Message-ID: <653FFBB4508B9042B5D43DC9E18836F522F9B7@scsmsx415.amr.corp.intel.com>
Date:	Tue, 20 Mar 2007 10:04:18 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"Dave Jones" <davej@...hat.com>
Cc:	"Andrew Morton" <akpm@...l.org>, <tglx@...utronix.de>,
	"linux-kernel" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/2] Export not_critical_when_idle feature in workqueue and use it in ondemand

 

>-----Original Message-----
>From: Dave Jones [mailto:davej@...hat.com] 
>Sent: Tuesday, March 20, 2007 7:58 AM
>To: Pallipadi, Venkatesh
>Cc: Andrew Morton; tglx@...utronix.de; linux-kernel
>Subject: Re: [PATCH 2/2] Export not_critical_when_idle feature 
>in workqueue and use it in ondemand
>
>On Fri, Mar 16, 2007 at 03:09:03PM -0700, Venkatesh Pallipadi wrote:
> > 
> > 
> > Add a new not_critical_when_idle parameter to 
>queue_delayed_work_on(). This
> > parameter can be used to schedule work that are 'unimportant' when
> > CPU is idle and can be called later, when CPU eventually 
>comes out of idle.
> > 
> > Use this parameter in cpufreq ondemand governor.
> >  
> > Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
>
>just for kicks (actually because I was seeing the negative effects
>of not having this diff) I threw this in the Fedora devel kernel.
>Got a few people reporting softlockups during shutdown.
>jpeg from one user attached..
>

Thanks for the report. I will take a look at this message.
Looks like, this error is either coming from rmmod or changing the
governor to default from ondemand during reboot. Does Fedora
use ondemand as a module and rmmod on reboot or is it builtin?

Thanks,
Venki 
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