tree: https://github.com/alexshi/linux.git 58lru head: d89fa86f842f0474cc8fb76e2896e84209d99746 commit: f9f7d0891bce8957b6c28239c6bc99e4b4b8357c [16/21] mm/lru: replace pgdat lru_lock with lruvec lock config: nios2-randconfig-s031-20200710 (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-37-gc9676a3b-dirty git checkout f9f7d0891bce8957b6c28239c6bc99e4b4b8357c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) include/linux/mm.h:1972:21: sparse: sparse: context imbalance in '__munlock_pagevec_fill' - different lock contexts for basic block vim +/__munlock_pagevec +12 arch/nios2/include/asm/irqflags.h f27ffc751ca5d2 Ley Foon Tan 2014-11-06 9 f27ffc751ca5d2 Ley Foon Tan 2014-11-06 10 static inline unsigned long arch_local_save_flags(void) f27ffc751ca5d2 Ley Foon Tan 2014-11-06 11 { f27ffc751ca5d2 Ley Foon Tan 2014-11-06 @12 return RDCTL(CTL_STATUS); f27ffc751ca5d2 Ley Foon Tan 2014-11-06 13 } f27ffc751ca5d2 Ley Foon Tan 2014-11-06 14 :::::: The code at line 12 was first introduced by commit :::::: f27ffc751ca5d216a347084996c70452a4e185a4 nios2: Interrupt handling :::::: TO: Ley Foon Tan <lftan(a)altera.com&gt; :::::: CC: Ley Foon Tan <lftan(a)altera.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org