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SubjectRe: arm qemu boot failures in -next due to 'PM / Domains: add setter for dev.pm_domain'
On Mon, Jan 11, 2016 at 06:14:31PM -0200, Fabio Estevam wrote:
> [Adding Rafael]
>
> On Mon, Jan 11, 2016 at 4:55 PM, Tony Lindgren <tony@atomide.com> wrote:
>
> >> I see 6 out of 24 arm qemu tests failing in next-20160111. Bisect points
> >> to commit 989561de9b51 ("PM / Domains: add setter for dev.pm_domain").
> >> Failures are silent - there is no output on the console.
> >> Affected tests are
> >>
> >> arm:beagle:multi_v7_defconfig:omap3-beagle
> >> arm:beaglexm:multi_v7_defconfig:omap3-beagle-xm
> >> arm:overo:multi_v7_defconfig:omap3-overo-tobi
> >> arm:beagle:omap2plus_defconfig:omap3-beagle
> >> arm:beaglexm:omap2plus_defconfig:omap3-beagle-xm
> >> arm:overo:omap2plus_defconfig:omap3-overo-tobi
> >>
> >> For details please see the 'next' column at http://server.roeck-us.net:8010/builders.
> >>
> >> Reverting the offending commit fixes the problems.
> >>
> >> Please let me know if there is anything I can do to help tracking down the problem.
> >
> > The following fixes the booting, but I wonder if it's a
> > proper fix?
> >
> > --- a/drivers/base/power/common.c
> > +++ b/drivers/base/power/common.c
> > @@ -145,9 +145,10 @@ void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd)
> > {
> > if (dev->pm_domain == pd)
> > return;
> > -
> > - WARN(device_is_bound(dev),
> > - "PM domains can only be changed for unbound devices\n");
> > + if (device_is_registered(dev)) {
> > + WARN(device_is_bound(dev),
> > + "PM domains can only be changed for unbound devices\n");
> > + }
> > dev->pm_domain = pd;
> > device_pm_check_callbacks(dev);
>
> Commit 989561de9b51 ("PM / Domains: add setter for dev.pm_domain")
> causes issues for me after doing a 'reboot' command.
>
> Rafael proposed a patch which fixed the 'reboot' problem:
> http://www.spinics.net/lists/arm-kernel/msg473562.html

Looks like a different problem.

Guenter

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