From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: arch/parisc/include/asm/spinlock.h:143:9: sparse: sparse: context imbalance in 'migrate_write_unlock' - unexpected unlock
Date: Wed, 18 Nov 2020 06:18:18 +0800 [thread overview]
Message-ID: <202011180608.n89SP7In-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Nicholas Piggin <npiggin@gmail.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
CC: Thomas Gleixner <tglx@linutronix.de>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9c87c9f41245baa3fc4716cf39141439cf405b01
commit: 044d0d6de9f50192f9697583504a382347ee95ca lockdep: Only trace IRQ edges
date: 3 months ago
:::::: branch date: 23 hours ago
:::::: commit date: 3 months ago
config: parisc-randconfig-s031-20201117 (attached as .config)
compiler: hppa-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: v0.6.3-107-gaf3512a6-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=044d0d6de9f50192f9697583504a382347ee95ca
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 044d0d6de9f50192f9697583504a382347ee95ca
# 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=parisc
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 >>)"
mm/zsmalloc.c:1348:9: sparse: sparse: context imbalance in 'zs_map_object' - wrong count at exit
mm/zsmalloc.c:1383:9: sparse: sparse: context imbalance in 'zs_unmap_object' - unexpected unlock
mm/zsmalloc.c:889:19: sparse: sparse: context imbalance in 'find_alloced_obj' - different lock contexts for basic block
mm/zsmalloc.c:1719:25: sparse: sparse: context imbalance in 'migrate_zspage' - unexpected unlock
mm/zsmalloc.c:1848:13: sparse: sparse: context imbalance in 'migrate_write_lock' - wrong count at exit
mm/zsmalloc.c: note: in included file (through arch/parisc/include/asm/atomic.h, include/linux/atomic.h, arch/parisc/include/asm/bitops.h, ...):
>> arch/parisc/include/asm/spinlock.h:143:9: sparse: sparse: context imbalance in 'migrate_write_unlock' - unexpected unlock
mm/zsmalloc.c:2085:9: sparse: sparse: context imbalance in 'zs_page_migrate' - different lock contexts for basic block
--
fs/btrfs/ctree.c:129:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
fs/btrfs/ctree.c:129:22: sparse: struct extent_buffer [noderef] __rcu *
fs/btrfs/ctree.c:129:22: sparse: struct extent_buffer *
fs/btrfs/ctree.c:1085:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
fs/btrfs/ctree.c:1085:17: sparse: struct extent_buffer [noderef] __rcu *
fs/btrfs/ctree.c:1085:17: sparse: struct extent_buffer *
fs/btrfs/ctree.c:1863:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
fs/btrfs/ctree.c:1863:17: sparse: struct extent_buffer [noderef] __rcu *
fs/btrfs/ctree.c:1863:17: sparse: struct extent_buffer *
fs/btrfs/ctree.c:3349:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
fs/btrfs/ctree.c:3349:9: sparse: struct extent_buffer [noderef] __rcu *
fs/btrfs/ctree.c:3349:9: sparse: struct extent_buffer *
fs/btrfs/ctree.c: note: in included file (through arch/parisc/include/asm/atomic.h, include/linux/atomic.h, arch/parisc/include/asm/bitops.h, ...):
>> arch/parisc/include/asm/spinlock.h:143:9: sparse: sparse: context imbalance in 'tree_mod_log_insert_move' - unexpected unlock
>> arch/parisc/include/asm/spinlock.h:143:9: sparse: sparse: context imbalance in 'tree_mod_log_eb_copy' - unexpected unlock
vim +/migrate_write_unlock +143 arch/parisc/include/asm/spinlock.h
^1da177e4c3f415 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 134
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 135 static inline void arch_write_unlock(arch_rwlock_t *rw)
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 136 {
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 137 unsigned long flags;
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 138
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 139 local_irq_save(flags);
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 140 arch_spin_lock(&(rw->lock_mutex));
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 141 rw->counter = __ARCH_RW_LOCK_UNLOCKED__;
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 142 arch_spin_unlock(&(rw->lock_mutex));
fbdc8f0f4891df7 arch/parisc/include/asm/spinlock.h Helge Deller 2020-04-05 @143 local_irq_restore(flags);
^1da177e4c3f415 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 144 }
^1da177e4c3f415 include/asm-parisc/spinlock.h Linus Torvalds 2005-04-16 145
:::::: The code at line 143 was first introduced by commit
:::::: fbdc8f0f4891df7b5eb643ec0a509a4ac7dcfc2e parisc: Rework arch_rw locking functions
:::::: TO: Helge Deller <deller@gmx.de>
:::::: CC: Helge Deller <deller@gmx.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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