linux-kernel - Re: [PATCH 0/10] Replace _PAGE_NUMA with PAGE

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Date:	Thu, 20 Nov 2014 16:50:25 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Mel Gorman <mgorman@...e.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>
CC:	Linux-MM <linux-mm@...ck.org>,
	LinuxPPC-dev <linuxppc-dev@...ts.ozlabs.org>,
	Aneesh Kumar <aneesh.kumar@...ux.vnet.ibm.com>,
	Hugh Dickins <hughd@...gle.com>, Dave Jones <davej@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Ingo Molnar <mingo@...hat.com>,
	Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 0/10] Replace _PAGE_NUMA with PAGE_NONE protections v2

On 11/20/2014 05:19 AM, Mel Gorman wrote:
> V1 failed while running under kvm-tools very quickly and a second report
> indicated that it happens on bare metal as well. This version survived
> an overnight run of trinity running under kvm-tools here but verification
> from Sasha would be appreciated.

Hi Mel,

I tried giving it a spin, but it won't apply at all on the latest -mm
tree:

$ git am -3 numa/*
Applying: mm: numa: Do not dereference pmd outside of the lock during NUMA hinting fault
Applying: mm: Add p[te|md] protnone helpers for use by NUMA balancing
Applying: mm: Convert p[te|md]_numa users to p[te|md]_protnone_numa
fatal: sha1 information is lacking or useless (mm/huge_memory.c).
Repository lacks necessary blobs to fall back on 3-way merge.
Cannot fall back to three-way merge.

Did I miss a prerequisite?


Thanks,
Sasha
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