linux-kernel - Re: [PATCH v3 2/3] mm: rmap: Fix CONT-PTE/PMD size hugetlb issue when migration

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Message-Id: <20220510190448.5e352897a147622ffa87175f@linux-foundation.org>
Date:   Tue, 10 May 2022 19:04:48 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Baolin Wang <baolin.wang@...ux.alibaba.com>,
        mike.kravetz@...cle.com, catalin.marinas@....com, will@...nel.org,
        kbuild-all@...ts.01.org, songmuchun@...edance.com,
        tsbogend@...ha.franken.de, James.Bottomley@...senpartnership.com,
        deller@....de, mpe@...erman.id.au, benh@...nel.crashing.org,
        paulus@...ba.org, hca@...ux.ibm.com, gor@...ux.ibm.com,
        agordeev@...ux.ibm.com, borntraeger@...ux.ibm.com,
        svens@...ux.ibm.com, ysato@...rs.osdn.me, dalias@...c.org,
        davem@...emloft.net, arnd@...db.de,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org
Subject: Re: [PATCH v3 2/3] mm: rmap: Fix CONT-PTE/PMD size hugetlb issue
 when migration

On Wed, 11 May 2022 09:19:17 +0800 kernel test robot <lkp@...el.com> wrote:

> Hi Baolin,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on akpm-mm/mm-everything]
> [cannot apply to hnaz-mm/master arm64/for-next/core linus/master v5.18-rc6]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220510-114753
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> config: h8300-buildonly-randconfig-r001-20220509 (https://download.01.org/0day-ci/archive/20220511/202205110919.CWIcIqYE-lkp@intel.com/config)
> compiler: h8300-linux-gcc (GCC) 11.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/intel-lab-lkp/linux/commit/b666792b4c5f9774c350977ff88837bafc36365a
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Baolin-Wang/Fix-CONT-PTE-PMD-size-hugetlb-issue-when-unmapping-or-migrating/20220510-114753
>         git checkout b666792b4c5f9774c350977ff88837bafc36365a
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=h8300 SHELL=/bin/bash
> 
> ...

Thanks. 
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rmap-fix-cont-pte-pmd-size-hugetlb-issue-when-migration-fix.patch
(which is in current mm-everything) fixes this up.