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SubjectRe: [2.6.25-rc1] System no longer powers off after shutdown
On Fri, Feb 15, 2008 at 2:19 AM, Frans Pop <elendil@planet.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

assume watchdog thread for the dead cpu can not be stopped. hang somewhere.

YH


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