linux-kernel - Re: [2.6.25-rc1] System no longer powers off after shutdown

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Date:	Fri, 15 Feb 2008 12:58:26 -0800
From:	Greg KH <gregkh@...e.de>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Frans Pop <elendil@...net.nl>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [2.6.25-rc1] System no longer powers off after shutdown

On Fri, Feb 15, 2008 at 11:38:59AM -0800, Yinghai Lu wrote:
> On Fri, Feb 15, 2008 at 2:19 AM, Frans Pop <elendil@...net.nl> wrote:
> > On Friday 15 February 2008, Greg KH wrote:
> >  > I swear someone sent this patch in before.  Can you try this one below,
> >  > there seems to be an imbalance with kobject_get and _put.
> >
> >  I did remember seeing this patch before [1] and can confirm that it does
> >  indeed fix the issue: with this patch applied to 2.6.25 git head my system
> >  powers off correctly.
> >
> >  [1] See http://lkml.org/lkml/2008/2/8/342; also added to #9960.
> >
> >
> >
> >  > ---
> >  >  drivers/cpufreq/cpufreq.c |    8 --------
> >  >  1 file changed, 8 deletions(-)
> >  >
> >  > --- a/drivers/cpufreq/cpufreq.c
> >  > +++ b/drivers/cpufreq/cpufreq.c
> >  > @@ -1006,14 +1006,6 @@ static int __cpufreq_remove_dev (struct
> >  >       }
> >  >  #endif
> >  >
> >  > -
> >  > -     if (!kobject_get(&data->kobj)) {
> >  > -             spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
> >  > -             cpufreq_debug_enable_ratelimit();
> >  > -             unlock_policy_rwsem_write(cpu);
> >  > -             return -EFAULT;
> >  > -     }
> >  > -
> >  >  #ifdef CONFIG_SMP
> >  >
> >  >  #ifdef CONFIG_HOTPLUG_CPU
> >
> >
> 
> confirmed, with this patch, i still need disable CONFIG_DETECT_SOFTLOCKUP

Great, thanks for testing and letting us know.

greg k-h
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