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

From: Pallipadi, Venkatesh
Date: Tue Mar 20 2007 - 13:04:47 EST




>-----Original Message-----
>From: Dave Jones [mailto:davej@xxxxxxxxxx]
>Sent: Tuesday, March 20, 2007 7:58 AM
>To: Pallipadi, Venkatesh
>Cc: Andrew Morton; tglx@xxxxxxxxxxxxx; 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@xxxxxxxxx>
>
>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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