CC: [email protected]
CC: [email protected]
TO: Alex Shi <[email protected]>
CC: "Kirill A. Shutemov" <[email protected]>
CC: Andrew Morton <[email protected]>
CC: Linux Memory Management List <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   ff1176468d368232b684f75e82563369208bc371
commit: b6769834aac1d467fa1c71277d15688efcbb4d76 mm/thp: narrow lru locking
date:   7 months ago
:::::: branch date: 17 hours ago
:::::: commit date: 7 months ago
config: mips-randconfig-s031-20210726 (attached as .config)
compiler: mips-linux-gcc (GCC) 10.3.0
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: v0.6.3-341-g8af24329-dirty
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b6769834aac1d467fa1c71277d15688efcbb4d76
        git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b6769834aac1d467fa1c71277d15688efcbb4d76
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips 
SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


sparse warnings: (new ones prefixed by >>)
   command-line: note: in included file:
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
   builtin:0:0: sparse: this was the original definition
   mm/huge_memory.c:1640:20: sparse: sparse: context imbalance in 
'madvise_free_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1677:28: sparse: sparse: context imbalance in 
'zap_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1787:28: sparse: sparse: context imbalance in 
'move_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1891:20: sparse: sparse: context imbalance in 
'change_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1901:12: sparse: sparse: context imbalance in 
'__pmd_trans_huge_lock' - wrong count at exit
   mm/huge_memory.c: note: in included file (through include/linux/irqflags.h, 
arch/mips/include/asm/atomic.h, include/linux/atomic.h, ...):
>> arch/mips/include/asm/irqflags.h:101:9: sparse: sparse: context imbalance in 
>> '__split_huge_page' - different lock contexts for basic block
   arch/mips/include/asm/irqflags.h:101:9: sparse: sparse: context imbalance in 
'split_huge_page_to_list' - different lock contexts for basic block

vim +/__split_huge_page +101 arch/mips/include/asm/irqflags.h

02b849f7613003 Ralf Baechle 2013-02-08   98  
02b849f7613003 Ralf Baechle 2013-02-08   99  static inline void 
arch_local_irq_enable(void)
02b849f7613003 Ralf Baechle 2013-02-08  100  {
02b849f7613003 Ralf Baechle 2013-02-08 @101     __asm__ __volatile__(
e97c5b609880d9 Jim Quinlan  2012-09-06  102     "       .set    push            
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  103     "       .set    reorder         
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  104     "       .set    noat            
                                \n"
ba9196d2e005a0 Jiaxun Yang  2020-01-13  105  #if defined(CONFIG_CPU_HAS_DIEI)
e97c5b609880d9 Jim Quinlan  2012-09-06  106     "       ei                      
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  107  #else
e97c5b609880d9 Jim Quinlan  2012-09-06  108     "       mfc0    $1,$12          
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  109     "       ori     $1,0x1f         
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  110     "       xori    $1,0x1e         
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  111     "       mtc0    $1,$12          
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  112  #endif
02b849f7613003 Ralf Baechle 2013-02-08  113     "       " 
__stringify(__irq_enable_hazard) "                    \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  114     "       .set    pop             
                                \n"
e97c5b609880d9 Jim Quinlan  2012-09-06  115     : /* no outputs */
e97c5b609880d9 Jim Quinlan  2012-09-06  116     : /* no inputs */
e97c5b609880d9 Jim Quinlan  2012-09-06  117     : "memory");
e97c5b609880d9 Jim Quinlan  2012-09-06  118  }
e97c5b609880d9 Jim Quinlan  2012-09-06  119  

:::::: The code at line 101 was first introduced by commit
:::::: 02b849f7613003fe5f9e58bf233d49b0ebd4a5e8 MIPS: Get rid of the use of 
.macro in C code.

:::::: TO: Ralf Baechle <[email protected]>
:::::: CC: Ralf Baechle <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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