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Date: Thu, 8 Feb 2018 12:17:49 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Punit Agrawal <punit.agrawal@arm.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
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        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Michael Ellerman <mpe@ellerman.id.au>
Subject: Re: [PATCH v2] mm: hwpoison: disable memory error handling on 1GB
 hugepage
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On Thu, 08 Feb 2018 12:30:45 +0000 Punit Agrawal <punit.agrawal@arm.com> wrote:

> >
> > So I don't think that the above test result means that errors are properly
> > handled, and the proposed patch should help for arm64.
> 
> Although, the deviation of pud_huge() avoids a kernel crash the code
> would be easier to maintain and reason about if arm64 helpers are
> consistent with expectations by core code.
> 
> I'll look to update the arm64 helpers once this patch gets merged. But
> it would be helpful if there was a clear expression of semantics for
> pud_huge() for various cases. Is there any version that can be used as
> reference?

Is that an ack or tested-by?

Mike keeps plaintively asking the powerpc developers to take a look,
but they remain steadfastly in hiding.

Folks, this patch fixes a BUG and is marked for -stable.  Can we please
prioritize it?