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Subject: Re: [PATCH v3 1/2] mm: migration: fix migration of huge PMD shared
 pages
References: <20180821205902.21223-2-mike.kravetz@oracle.com>
 <201808220831.eM0je51n%fengguang.wu@intel.com>
From: Mike Kravetz <mike.kravetz@oracle.com>
Message-ID: <975b740d-26a6-eb3f-c8ca-1a9995d0d343@oracle.com>
Date: Tue, 21 Aug 2018 18:10:42 -0700
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To: kbuild test robot <lkp@intel.com>
Cc: kbuild-all@01.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= <jglisse@redhat.com>, Vlastimil Babka <vbabka@suse.cz>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Davidlohr Bueso <dave@stgolabs.net>, Michal Hocko <mhocko@kernel.org>, Andrew Morton <akpm@linux-foundation.org>, stable@vger.kernel.org

On 08/21/2018 05:51 PM, kbuild test robot wrote:
> Hi Mike,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.18 next-20180821]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Mike-Kravetz/huge_pmd_unshare-migration-and-flushing/20180822-050255
> config: sparc64-allyesconfig (attached as .config)
> compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.2.0 make.cross ARCH=sparc64 
> 

Ok, this should take care of all the build errors.  Needed to address
!CONFIG_HUGETLB_PAGE and !CONFIG_ARCH_WANT_HUGE_PMD_SHARE.