linux-kernel - [norov:demotion4 3/6] include/linux/page-flags-layout.h:105:2: error: #error "Not enough bits in page flags"

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Message-ID: <202108091543.ln3MCdxI-lkp@intel.com>
Date:   Mon, 9 Aug 2021 15:32:59 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [norov:demotion4 3/6] include/linux/page-flags-layout.h:105:2:
 error: #error "Not enough bits in page flags"

tree:   https://github.com/norov/linux demotion4
head:   04f3fe952ed6bade909568a7ef3676b84e8afa48
commit: 141534a979a1648767710bdf57c4977d4a169b56 [3/6] mm/demotion: introduce MPOL_F_DEMOTE for mbind() and set_mempolicy()
config: i386-randconfig-r015-20210808 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/norov/linux/commit/141534a979a1648767710bdf57c4977d4a169b56
        git remote add norov https://github.com/norov/linux
        git fetch --no-tags norov demotion4
        git checkout 141534a979a1648767710bdf57c4977d4a169b56
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 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 >>):

   In file included from include/linux/mmzone.h:19,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:20,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/page-flags-layout.h:105:2: error: #error "Not enough bits in page flags"
     105 | #error "Not enough bits in page flags"
         |  ^~~~~
--
   In file included from include/linux/mmzone.h:19,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:20,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/page-flags-layout.h:105:2: error: #error "Not enough bits in page flags"
     105 | #error "Not enough bits in page flags"
         |  ^~~~~
   make[2]: *** [scripts/Makefile.build:118: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1311: prepare0] Error 2
   make[1]: Target 'modules_prepare' not remade because of errors.
   make: *** [Makefile:227: __sub-make] Error 2
   make: Target 'modules_prepare' not remade because of errors.
--
   error: no override and no default toolchain set
   init/Kconfig:70:warning: 'RUSTC_VERSION': number is invalid
   In file included from include/linux/mmzone.h:19,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from include/linux/crypto.h:20,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/page-flags-layout.h:105:2: error: #error "Not enough bits in page flags"
     105 | #error "Not enough bits in page flags"
         |  ^~~~~
   make[2]: *** [scripts/Makefile.build:118: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1311: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:227: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +105 include/linux/page-flags-layout.h

bbeae5b05ef6e4 Peter Zijlstra 2013-02-22  102  
1587db62d8c0db Yu Zhao        2021-04-29  103  #if ZONES_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + KASAN_TAG_WIDTH + LAST_CPUPID_WIDTH \
1587db62d8c0db Yu Zhao        2021-04-29  104  	> BITS_PER_LONG - NR_PAGEFLAGS
1587db62d8c0db Yu Zhao        2021-04-29 @105  #error "Not enough bits in page flags"
75980e97daccfc Peter Zijlstra 2013-02-22  106  #endif
75980e97daccfc Peter Zijlstra 2013-02-22  107  

:::::: The code at line 105 was first introduced by commit
:::::: 1587db62d8c0dbd943752f657b452213e1c4d8d4 include/linux/page-flags-layout.h: cleanups

:::::: TO: Yu Zhao <yuzhao@...gle.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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