From: kernel test robot <lkp@intel.com>
To: Dave Chinner <dchinner@redhat.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
"Darrick J. Wong" <darrick.wong@oracle.com>,
Christoph Hellwig <hch@lst.de>,
Allison Collins <allison.henderson@oracle.com>,
Brian Foster <bfoster@redhat.com>
Subject: arch/x86/include/asm/preempt.h:79:9: sparse: sparse: context imbalance in 'xfs_iflush_abort' - wrong count at exit
Date: Sat, 20 Jun 2020 19:28:37 +0800 [thread overview]
Message-ID: <202006201933.Q3BHk6vR%lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4333a9b0b67bb4e8bcd91bdd80da80b0ec151162
commit: 4165994ac9672d91134675caa6de3645a9ace6c8 xfs: factor common AIL item deletion code
date: 3 months ago
config: i386-randconfig-s002-20200620 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-rc1-18-g27caae40-dirty
git checkout 4165994ac9672d91134675caa6de3645a9ace6c8
# save the attached .config to linux build tree
make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> arch/x86/include/asm/preempt.h:79:9: sparse: sparse: context imbalance in 'xfs_iflush_abort' - wrong count at exit
vim +/xfs_iflush_abort +79 arch/x86/include/asm/preempt.h
c2daa3bed53a81 Peter Zijlstra 2013-08-14 72
c2daa3bed53a81 Peter Zijlstra 2013-08-14 73 /*
c2daa3bed53a81 Peter Zijlstra 2013-08-14 74 * The various preempt_count add/sub methods
c2daa3bed53a81 Peter Zijlstra 2013-08-14 75 */
c2daa3bed53a81 Peter Zijlstra 2013-08-14 76
c2daa3bed53a81 Peter Zijlstra 2013-08-14 77 static __always_inline void __preempt_count_add(int val)
c2daa3bed53a81 Peter Zijlstra 2013-08-14 78 {
b3ca1c10d7b32f Christoph Lameter 2014-04-07 @79 raw_cpu_add_4(__preempt_count, val);
c2daa3bed53a81 Peter Zijlstra 2013-08-14 80 }
c2daa3bed53a81 Peter Zijlstra 2013-08-14 81
:::::: The code at line 79 was first introduced by commit
:::::: b3ca1c10d7b32fdfdfaf5484eda486323f52d9be percpu: add raw_cpu_ops
:::::: TO: Christoph Lameter <cl@linux.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next reply other threads:[~2020-06-20 11:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-20 11:28 kernel test robot [this message]
2020-07-13 3:03 kernel test robot
2020-07-17 20:38 ` Darrick J. Wong
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