Hi Zhang, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on tip/perf/core] [also build test ERROR on block/for-next linus/master v5.13-rc6 next-20210616] [cannot apply to ext4/dev] [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/Zhang-Yi/ext4-jbd2-fix-3-issues-... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 2e38eb04c95e5546b71bb86ee699a891c7d212b5 config: powerpc64-randconfig-c023-20210616 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/febd5dbbacc012ee1a482877311b419ad... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Zhang-Yi/ext4-jbd2-fix-3-issues-about-bdev_try_to_free_page/20210616-214447 git checkout febd5dbbacc012ee1a482877311b419ad67b209f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org