linux-kernel - Re: [PATCH v5 1/4] mm: hugetlb_vmemmap: introduce STRUCT_PAGE_SIZE_IS_POWER_OF

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Date:   Thu, 24 Mar 2022 18:47:52 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     "Chen, Rong A" <rong.a.chen@...el.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        kernel test robot <lkp@...el.com>,
        Jonathan Corbet <corbet@....net>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Oscar Salvador <osalvador@...e.de>,
        David Hildenbrand <david@...hat.com>, kbuild-all@...ts.01.org,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Xiongchun duan <duanxiongchun@...edance.com>,
        Muchun Song <smuchun@...il.com>
Subject: Re: [PATCH v5 1/4] mm: hugetlb_vmemmap: introduce STRUCT_PAGE_SIZE_IS_POWER_OF_2

On Thu, Mar 24, 2022 at 6:40 PM Chen, Rong A <rong.a.chen@...el.com> wrote:
>
>
>
> On 3/24/2022 6:20 PM, Muchun Song wrote:
> > On Thu, Mar 24, 2022 at 5:40 PM Chen, Rong A <rong.a.chen@...el.com> wrote:
> >>
> >>
> >>
> >> On 3/24/2022 6:13 AM, Andrew Morton wrote:
> >>> On Thu, 24 Mar 2022 06:06:41 +0800 kernel test robot <lkp@...el.com> wrote:
> >>>
> >>>> Hi Muchun,
> >>>>
> >>>> Thank you for the patch! Yet something to improve:
> >>>>
> >>>> [auto build test ERROR on hnaz-mm/master]
> >>>> [also build test ERROR on linus/master next-20220323]
> >>>> [cannot apply to mcgrof/sysctl-next v5.17]
> >>>> [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/0day-ci/linux/commits/Muchun-Song/add-hugetlb_free_vmemmap-sysctl/20220323-205902
> >>>> base:   https://github.com/hnaz/linux-mm master
> >>>> config: arc-randconfig-r043-20220323 (https://download.01.org/0day-ci/archive/20220324/202203240546.MHJzsBaO-lkp@intel.com/config)
> >>>> compiler: arc-elf-gcc (GCC) 11.2.0
> >>>> 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/0day-ci/linux/commit/64211be650af117819368a26d7b86c33df5deea4
> >>>>           git remote add linux-review https://github.com/0day-ci/linux
> >>>>           git fetch --no-tags linux-review Muchun-Song/add-hugetlb_free_vmemmap-sysctl/20220323-205902
> >>>>           git checkout 64211be650af117819368a26d7b86c33df5deea4
> >>>>           # save the config file to linux build tree
> >>>>           mkdir build_dir
> >>>>           COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc prepare
> >>>>
> >>>> If you fix the issue, kindly add following tag as appropriate
> >>>> Reported-by: kernel test robot <lkp@...el.com>
> >>>>
> >>>> All errors (new ones prefixed by >>):
> >>>>
> >>>>>> cc1: fatal error: cannot open 'kernel/bounds.s' for writing: No such file or directory
> >>>
> >>> It would take a lot of talent for Munchun to have caused this!
> >>>
> >>> Methinks you just ran out of disk space?
> >>
> >> Hi Andrew,
> >>
> >> Thanks for the reply, I tried to apply this patch to the head of
> >> mainline and I still can reproduce the error in my local machine:
> >>
> >> $ wget -q -O -
> >> https://lore.kernel.org/lkml/20220323125523.79254-2-songmuchun@bytedance.com/raw
> >> | git apply -v
> >> $ mkdir build_dir && wget
> >> https://download.01.org/0day-ci/archive/20220324/202203240546.MHJzsBaO-lkp@intel.com/config
> >> -O build_dir/.config
> >> $ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross
> >> O=build_dir ARCH=arc olddefconfig prepare
> >> make --keep-going CONFIG_OF_ALL_DTBS=y CONFIG_DTC=y
> >> CROSS_COMPILE=/home/nfs/0day/gcc-11.2.0-nolibc/arc-elf/bin/arc-elf-
> >> --jobs=72 O=build_dir ARCH=arc olddefconfig prepare
> >> ...
> >> cc1: fatal error: cannot open 'kernel/bounds.s' for writing: No such
> >> file or directory
> >> compilation terminated.
> >> make[3]: *** [../scripts/Makefile.build:121: kernel/bounds.s] Error 1
> >> make[3]: Target '__build' not remade because of errors.
> >> make[2]: *** [../Makefile:1191: prepare0] Error 2
> >> make[2]: Target 'prepare' not remade because of errors.
> >>
> >
> > Would you help me to test the following patch?  Thanks.
>
> I have confirmed the patch can fix the issue.
>

Thanks Chen.