On Thu, 13 May 2021 17:36:14 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > tree: https://github.com/hnaz/linux-mm master > head: 12891f829e4851b3562ddcde27a4a9ade308ada3 > commit: 161b082aa6ac5047f1b0f243f0e834d2bfb39842 [179/239] kernel.h: split out panic and oops helpers > config: nds32-defconfig (attached as .config) > compiler: nds32le-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/hnaz/linux-mm/commit/161b082aa6ac5047f1b0f243f0e834d2bfb39842 > git remote add hnaz-linux-mm https://github.com/hnaz/linux-mm > git fetch --no-tags hnaz-linux-mm master > git checkout 161b082aa6ac5047f1b0f243f0e834d2bfb39842 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=nds32 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > Note: the hnaz-linux-mm/master HEAD 12891f829e4851b3562ddcde27a4a9ade308ada3 builds fine. > It only hurts bisectibility. I'm surprised. I guess some later patch accidentally fixed it. I expect we'll see a bunch more gramlins like this. And I assume this fixes: --- a/include/linux/thread_info.h~kernelh-split-out-panic-and-oops-helpers-fix +++ a/include/linux/thread_info.h @@ -9,6 +9,7 @@ #define _LINUX_THREAD_INFO_H #include <linux/types.h> +#include <linux/limits.h> #include <linux/bug.h> #include <linux/restart_block.h> #include <linux/errno.h> _