On Tue, Mar 9, 2021 at 4:00 PM kernel test robot <lkp@xxxxxxxxx> wrote: > > tree: https://github.com/intel/linux-intel-lts.git 4.19/android_r > head: 42da0a5bc28f55c05347ef8eb88d9e41f369333e > commit: 7783c5c8ec0d6781dc180be5fd075f06f90e9cb5 [20723/22085] UPSTREAM: page flags: prioritize kasan bits over last-cpuid > config: mips-lemote2f_defconfig (attached as .config) > compiler: mips64el-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/intel/linux-intel-lts/commit/7783c5c8ec0d6781dc180be5fd075f06f90e9cb5 > git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git > git fetch --no-tags intel-linux-intel-lts 4.19/android_r > git checkout 7783c5c8ec0d6781dc180be5fd075f06f90e9cb5 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > In file included from include/linux/mm_types.h:15, > from arch/mips/include/asm/vdso.h:14, > from arch/mips/include/asm/vdso/vdso.h:28, > from arch/mips/include/asm/vdso/gettimeofday.h:16, > from include/vdso/datapage.h:114, > from lib/vdso/gettimeofday.c:5, > from <command-line>: > >> include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags" I think this happens because my patch fixed an error that happened on multiple architectures but did not fix the mips specific error that remains. I once tried fixing this as well, but there is no good way to express the requirements in Kconfig -- there are simply not enough bits in the page flags to allow all combinations that can happen in randconfig builds. Arnd
