Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault

(off-list ancestor, not in this archive)
Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Hugh Dickins <hughd@google.com> · 2016-05-30
Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Benjamin Herrenschmidt <benh@kernel.crashing.org> · 2016-05-30
Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Hugh Dickins <hughd@google.com> · 2016-05-31
Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Hugh Dickins <hughd@google.com> · 2016-06-02
Re: [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Michael Ellerman <mpe@ellerman.id.au> · 2016-06-07

From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2016-06-07 12:07:23

Possibly related (same subject, not in this thread)

2016-05-27 · [PATCH] powerpc/mm/hash: Fix the reference bit update when handling hash fault · Aneesh Kumar K.V <hidden>

On Thu, 2016-06-02 at 08:12 -0700, Hugh Dickins wrote:

On Tue, 31 May 2016, Hugh Dickins wrote:

quoted

But all my evidence so far is that it is now right: I'll continue
testing v4.6+fix on a couple of loads until this evening: all is
well so far.  And then switch to testing v4.5+fix on those loads
for another day and a half.

I'm glad to confirm: your patch to htab_convert_pte_flags() fixes all
the elusive sigsegv issues I was seeing under load on v4.5 and v4.6.
Thank you!

Thanks for all the testing Hugh, and sorry for the bug.

cheers

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