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:   7fef2edf7cc753b51f7ccc74993971b0a9c81eca
commit: b6769834aac1d467fa1c71277d15688efcbb4d76 mm/thp: narrow lru locking
date:   7 months ago
:::::: branch date: 17 hours ago
:::::: commit date: 7 months ago
config: x86_64-randconfig-s032-20210713 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # 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
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir 
ARCH=x86_64 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 >>)
   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:1918:12: sparse: sparse: context imbalance in 
'__pud_trans_huge_lock' - wrong count at exit
   mm/huge_memory.c:1947:28: sparse: sparse: context imbalance in 
'zap_huge_pud' - unexpected unlock
   mm/huge_memory.c:2510:29: sparse: sparse: context imbalance in 
'__split_huge_page' - unexpected unlock
   mm/huge_memory.c: note: in included file (through include/linux/irqflags.h, 
arch/x86/include/asm/special_insns.h, arch/x86/include/asm/processor.h, ...):
>> arch/x86/include/asm/irqflags.h:54:9: sparse: sparse: context imbalance in 
>> 'split_huge_page_to_list' - different lock contexts for basic block

vim +/split_huge_page_to_list +54 arch/x86/include/asm/irqflags.h

6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  51  
7a745be1cc902d arch/x86/include/asm/irqflags.h Peter Zijlstra            
2020-06-03  52  static __always_inline void native_irq_enable(void)
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  53  {
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30 @54         asm volatile("sti": : :"memory");
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  55  }
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  56  

:::::: The code at line 54 was first introduced by commit
:::::: 6abcd98ffafbff81f0bfd7ee1d129e634af13245 x86: irqflags consolidation

:::::: TO: Glauber de Oliveira Costa <[email protected]>
:::::: CC: Ingo Molnar <[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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