Hi Johannes, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Johannes-Weiner/mm-page_alloc-remove-pcppage-migratetype-caching/20240321-020814 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240320180429.678181-10-hannes%40cmpxchg.org patch subject: [PATCH 09/10] mm: page_isolation: prepare for hygienic freelists config: i386-randconfig-003-20240321 (https://download.01.org/0day-ci/archive/20240321/202403212118.ye7lcKjD-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240321/202403212118.ye7lcKjD-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403212118.ye7lcKjD-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): mm/page_alloc.c: In function 'move_freepages_block_isolate': >> mm/page_alloc.c:688:17: warning: array subscript 11 is above array bounds of 'struct free_area[11]' [-Warray-bounds] 688 | zone->free_area[order].nr_free--; | ~~~~~~~~~~~~~~~^~~~~~~ >> mm/page_alloc.c:688:17: warning: array subscript 11 is above array bounds of 'struct free_area[11]' [-Warray-bounds] vim +688 mm/page_alloc.c 6ab0136310961eb Alexander Duyck 2020-04-06 677 6ab0136310961eb Alexander Duyck 2020-04-06 678 static inline void del_page_from_free_list(struct page *page, struct zone *zone, 6ab0136310961eb Alexander Duyck 2020-04-06 679 unsigned int order) 6ab0136310961eb Alexander Duyck 2020-04-06 680 { 36e66c554b5c6a9 Alexander Duyck 2020-04-06 681 /* clear reported state and update reported page count */ 36e66c554b5c6a9 Alexander Duyck 2020-04-06 682 if (page_reported(page)) 36e66c554b5c6a9 Alexander Duyck 2020-04-06 683 __ClearPageReported(page); 36e66c554b5c6a9 Alexander Duyck 2020-04-06 684 bf75f200569dd05 Mel Gorman 2022-06-24 685 list_del(&page->buddy_list); 6ab0136310961eb Alexander Duyck 2020-04-06 686 __ClearPageBuddy(page); 6ab0136310961eb Alexander Duyck 2020-04-06 687 set_page_private(page, 0); 6ab0136310961eb Alexander Duyck 2020-04-06 @688 zone->free_area[order].nr_free--; 6ab0136310961eb Alexander Duyck 2020-04-06 689 } 6ab0136310961eb Alexander Duyck 2020-04-06 690 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
