On Wed, 6 Jul 2016 07:03:43 -0500
Corey Minyard <cminyard@xxxxxxxxxx> wrote:
> > ---
> > diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
> > index aaf4b9b94f38..cc70d98a30f6 100644
> > --- a/arch/x86/kernel/cpu/mcheck/mce.c
> > +++ b/arch/x86/kernel/cpu/mcheck/mce.c
> > @@ -1391,7 +1391,8 @@ static int mce_notify_work_init(void)
> >
> > static void mce_notify_work(void)
> > {
> > - wake_up_process(mce_notify_helper);
> > + if (mce_notify_helper)
> > + wake_up_process(mce_notify_helper);
> > }
Actually, this appears to be the fix in 4.6-rt.
> > #else
> > static void mce_notify_work(void)
> >
> >
> I did think about that option, but I'm not sure why the current RT patch
> has that as a separate bool.
>
> This appears to come in here:
>
> http://www.spinics.net/lists/linux-rt-users/msg12779.html
>
> I'm copying Sebastian, who appears to be the original source of this
> change.
You can see why this is different by looking at the commit that changed
it. Or this email:
lkml.kernel.org/r/1365704626.9609.55.camel@xxxxxxxxxxxxxxxxxx
-- Steve
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