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