Re: [PATCH] mm/hugetlb: Warn the user when issues arise on boot due to hugepages

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On Mon, 12 Jun 2017 21:35:17 -0400 "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx> wrote:

> > 
> > > If there's no message stating any
> > > configuration issue, then many admins would probably think something is
> > > seriously broken and it's not just a simple typo of K vs M.
> > > 
> > > Even though this doesn't catch all errors, I think it's a worth while
> > > change since this is currently a silent failure which results in a
> > > system crash.
> > 
> > Seriously, this warning just doesn't help in _most_ miscofigurations. It
> > just focuses on one particular which really requires to misconfigure
> > really badly. And there are way too many other ways to screw your system
> > that way, yet we do not warn about many of those. So just try to step
> > back and think whether this is something we actually do care about and
> > if yes then try to come up with a more reasonable warning which would
> > cover a wider range of misconfigurations.
> 
> Understood.  Again, I appreciate all the time you have taken on my
> patch and explaining your points.  I will look at this again as you
> have suggested.

So do we want to drop
mm-hugetlb-warn-the-user-when-issues-arise-on-boot-due-to-hugepages.patch?

I'd be inclined to keep it if Liam found it a bit useful - it does have
some overhead, but half the patch is in __init code...

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