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X-IronPort-AV: E=McAfee;i="6600,9927,11019"; a="5904361" X-IronPort-AV: E=Sophos;i="6.07,142,1708416000"; d="scan'208";a="5904361" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2024 06:14:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,142,1708416000"; d="scan'208";a="18974602" Received: from lkp-server01.sh.intel.com (HELO b21307750695) ([10.239.97.150]) by fmviesa005.fm.intel.com with ESMTP; 21 Mar 2024 06:14:47 -0700 Received: from kbuild by b21307750695 with local (Exim 4.96) (envelope-from ) id 1rnIFo-000JRb-1U; Thu, 21 Mar 2024 13:14:44 +0000 Date: Thu, 21 Mar 2024 21:13:57 +0800 From: kernel test robot To: Johannes Weiner , Andrew Morton Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Vlastimil Babka , Mel Gorman , Zi Yan , "Huang, Ying" , David Hildenbrand , linux-kernel@vger.kernel.org Subject: Re: [PATCH 09/10] mm: page_isolation: prepare for hygienic freelists Message-ID: <202403212118.ye7lcKjD-lkp@intel.com> References: <20240320180429.678181-10-hannes@cmpxchg.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240320180429.678181-10-hannes@cmpxchg.org> 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@intel.com/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@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202403212118.ye7lcKjD-lkp@intel.com/ 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