* Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, Dec 13, 2016 at 07:39:58AM +0100, Ingo Molnar wrote:
> >
> > hi Greg,
> >
> > Please apply this fix to v4.9-stable as well, it's now upstream.
>
> Ok, it looks like it belongs in older stable kernels as well, based on
> the fixes: tag, correct?
Yes, indeed - but the testing was v4.9 based and there's been all sorts of changes
in the CPU hotplug machinery.
The fixes tag:
> > Fixes: 47e627bc8c9a ("[PATCH] hotplug: Allow modules to use the cpu hotplug notifiers even if !CONFIG_HOTPLUG_CPU")
Suggests it's an ancient bug and 777c6e0daebb3fce cherry-picks fine as far back as
v4.6.
Thanks,
Ingo
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