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:   d5ad8ec3cfb56a017de6a784835666475b4be349
commit: b6769834aac1d467fa1c71277d15688efcbb4d76 mm/thp: narrow lru locking
date:   8 months ago
:::::: branch date: 18 hours ago
:::::: commit date: 8 months ago
config: s390-randconfig-s032-20210804 (attached as .config)
compiler: s390-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: v0.6.3-348-gf0e6938b-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=s390 
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: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, 
include/linux/spinlock.h, include/linux/mmzone.h, ...):
>> arch/s390/include/asm/irqflags.h:57:9: sparse: sparse: context imbalance in 
>> 'split_huge_page_to_list' - different lock contexts for basic block

vim +/split_huge_page_to_list +57 arch/s390/include/asm/irqflags.h

1f194a4c393103 include/asm-s390/irqflags.h      Heiko Carstens     2006-07-03  
54  
f433c4aec9999d arch/s390/include/asm/irqflags.h Steven Rostedt     2011-07-24  
55  static inline notrace void arch_local_irq_enable(void)
94c12cc7d196ba include/asm-s390/irqflags.h      Martin Schwidefsky 2006-09-28  
56  {
df9ee29270c11d arch/s390/include/asm/irqflags.h David Howells      2010-10-07 
@57       __arch_local_irq_stosm(0x03);
94c12cc7d196ba include/asm-s390/irqflags.h      Martin Schwidefsky 2006-09-28  
58  }
1f194a4c393103 include/asm-s390/irqflags.h      Heiko Carstens     2006-07-03  
59  

:::::: The code at line 57 was first introduced by commit
:::::: df9ee29270c11dba7d0fe0b83ce47a4d8e8d2101 Fix IRQ flag handling naming

:::::: TO: David Howells <[email protected]>
:::::: CC: David Howells <[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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