Hi David, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on kdave/for-next] [also build test ERROR on ext4/dev fuse/for-next xfs-linux/for-next tip/perf/core linux/master linus/master v5.12-rc6 next-20210409] [cannot apply to hnaz-linux-mm/master] [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/David-Howells/mm-Split-page_has_... base: https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next config: x86_64-randconfig-a005-20210409 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project dd453a1389b6a7e6d9214b449d3c54981b1a89b6) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/a00a255f7bf637156368e8545b2c64e39... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review David-Howells/mm-Split-page_has_private-in-two-to-better-handle-PG_private_2/20210409-051632 git checkout a00a255f7bf637156368e8545b2c64e39c93718b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): } else if (page_has_private(p) && ^ 1 error generated. vim +/page_has_private +632 mm/memory-failure.c dc2a1cbf7d862e9 Wu Fengguang 2009-12-16 620 78bb920344b8a6f Naoya Horiguchi 2017-07-10 621 static int truncate_error_page(struct page *p, unsigned long pfn, 78bb920344b8a6f Naoya Horiguchi 2017-07-10 622 struct address_space *mapping) 78bb920344b8a6f Naoya Horiguchi 2017-07-10 623 { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 624 int ret = MF_FAILED; 78bb920344b8a6f Naoya Horiguchi 2017-07-10 625 78bb920344b8a6f Naoya Horiguchi 2017-07-10 626 if (mapping->a_ops->error_remove_page) { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 627 int err = mapping->a_ops->error_remove_page(mapping, p); 78bb920344b8a6f Naoya Horiguchi 2017-07-10 628 78bb920344b8a6f Naoya Horiguchi 2017-07-10 629 if (err != 0) { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 630 pr_info("Memory failure: %#lx: Failed to punch page: %d\n", 78bb920344b8a6f Naoya Horiguchi 2017-07-10 631 pfn, err); 78bb920344b8a6f Naoya Horiguchi 2017-07-10 @632 } else if (page_has_private(p) && 78bb920344b8a6f Naoya Horiguchi 2017-07-10 633 !try_to_release_page(p, GFP_NOIO)) { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 634 pr_info("Memory failure: %#lx: failed to release buffers\n", 78bb920344b8a6f Naoya Horiguchi 2017-07-10 635 pfn); 78bb920344b8a6f Naoya Horiguchi 2017-07-10 636 } else { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 637 ret = MF_RECOVERED; 78bb920344b8a6f Naoya Horiguchi 2017-07-10 638 } 78bb920344b8a6f Naoya Horiguchi 2017-07-10 639 } else { 78bb920344b8a6f Naoya Horiguchi 2017-07-10 640 /* 78bb920344b8a6f Naoya Horiguchi 2017-07-10 641 * If the file system doesn't support it just invalidate 78bb920344b8a6f Naoya Horiguchi 2017-07-10 642 * This fails on dirty or anything with private pages 78bb920344b8a6f Naoya Horiguchi 2017-07-10 643 */ 78bb920344b8a6f Naoya Horiguchi 2017-07-10 644 if (invalidate_inode_page(p)) 78bb920344b8a6f Naoya Horiguchi 2017-07-10 645 ret = MF_RECOVERED; 78bb920344b8a6f Naoya Horiguchi 2017-07-10 646 else 78bb920344b8a6f Naoya Horiguchi 2017-07-10 647 pr_info("Memory failure: %#lx: Failed to invalidate\n", 78bb920344b8a6f Naoya Horiguchi 2017-07-10 648 pfn); 78bb920344b8a6f Naoya Horiguchi 2017-07-10 649 } 78bb920344b8a6f Naoya Horiguchi 2017-07-10 650 78bb920344b8a6f Naoya Horiguchi 2017-07-10 651 return ret; 78bb920344b8a6f Naoya Horiguchi 2017-07-10 652 } 78bb920344b8a6f Naoya Horiguchi 2017-07-10 653 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org