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Date:   Tue, 16 Apr 2019 20:24:20 -0700
From:   Andrew Morton <>
To:     Guenter Roeck <>
Cc:     Dan Williams <>,
        Linux Kernel Mailing List <>,
        Mathieu Desnoyers <>,
        Thomas Gleixner <>,
        Mike Rapoport <>,
        Linux MM <>
Subject: Re: [PATCH] init: Initialize jump labels before command line option

On Tue, 16 Apr 2019 17:39:03 -0700 Guenter Roeck <> wrote:

> > > Has it been confirmed that this fixes
> > > mm-shuffle-initial-free-memory-to-improve-memory-side-cache-utilization.patch
> > > on beaglebone-black?
> >
> > This only fixes dynamically enabling the shuffling on 32-bit ARM.
> > Guenter happened to run without the mm-only 'force-enable-always'
> > patch and when he went to use the command line option to enable it he
> > hit the jump-label warning.
> >
> For my part I have not seen the original failure; it seems that the
> kernelci logs are no longer present. As such, I neither know how it
> looks like nor how to (try to) reproduce it. I just thought it might
> be worthwhile to run the patch through my boot tests to see if
> anything pops up. From the feedback I got, though, it sounded like the
> failure is/was very omap2 specific, so I would not be able to
> reproduce it anyway.

hm.  Maybe we forge ahead and see if someone hits the issue who
can work with us on resolving it.  It sounds like the affected population
will be quite small.  But still, ugh :(

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