* Chris Wilson <[email protected]> wrote:

> > > A bisection pointed to 
> > > 
> > > commit ea8596bb2d8d37957f3e92db9511c50801689180
> > > Author: Masami Hiramatsu <[email protected]>
> > > Date:   Thu Jul 18 20:47:53 2013 +0900
> > > 
> > >     kprobes/x86: Remove unused text_poke_smp() and text_poke_smp_batch() 
> > > functions
> > > 
> > > of which the active ingredient was just
> > > 
> > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > > index b32ebf9..f4001e0 100644
> > > --- a/arch/x86/Kconfig
> > > +++ b/arch/x86/Kconfig
> > > @@ -2334,7 +2334,6 @@ config HAVE_ATOMIC_IOMAP
> > >  
> > >  config HAVE_TEXT_POKE_SMP
> > >         bool
> > > -       select STOP_MACHINE if SMP

Ouch...

This is certainly an educative example of how pure 'code removal' patches can 
have 
unintended side effects.

Is there a full fix patch available, and is anyone pushing that to Linus?

Thanks,

        Ingo
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