CC: [email protected] CC: [email protected] TO: "Paul E. McKenney" <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f40ddce88593482919761f74910f42f4b84c004b commit: 8cbd0e38a9f2de38e8991c5c1c6f9024b2731d17 rcu: Add Kconfig option for strict RCU grace periods date: 6 months ago :::::: branch date: 4 days ago :::::: commit date: 6 months ago config: ia64-randconfig-s031-20210219 (attached as .config) compiler: ia64-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: v0.6.3-215-g0fb77bb6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8cbd0e38a9f2de38e8991c5c1c6f9024b2731d17 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8cbd0e38a9f2de38e8991c5c1c6f9024b2731d17 # 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=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> "sparse warnings: (new ones prefixed by >>)" kernel/locking/spinlock.c:149:17: sparse: sparse: context imbalance in '_raw_spin_lock' - wrong count at exit kernel/locking/spinlock.c: note: in included file (through arch/ia64/include/generated/asm/preempt.h, include/linux/preempt.h): >> include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in >> '_raw_spin_lock_irqsave' - wrong count at exit >> include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in >> '_raw_spin_lock_irq' - wrong count at exit kernel/locking/spinlock.c:173:17: sparse: sparse: context imbalance in '_raw_spin_lock_bh' - wrong count at exit kernel/locking/spinlock.c:181:17: sparse: sparse: context imbalance in '_raw_spin_unlock' - unexpected unlock kernel/locking/spinlock.c:189:17: sparse: sparse: context imbalance in '_raw_spin_unlock_irqrestore' - unexpected unlock kernel/locking/spinlock.c:197:17: sparse: sparse: context imbalance in '_raw_spin_unlock_irq' - unexpected unlock kernel/locking/spinlock.c:205:17: sparse: sparse: context imbalance in '_raw_spin_unlock_bh' - unexpected unlock kernel/locking/spinlock.c:221:17: sparse: sparse: context imbalance in '_raw_read_lock' - wrong count at exit include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in '_raw_read_lock_irqsave' - wrong count at exit include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in '_raw_read_lock_irq' - wrong count at exit kernel/locking/spinlock.c:245:17: sparse: sparse: context imbalance in '_raw_read_lock_bh' - wrong count at exit kernel/locking/spinlock.c:253:17: sparse: sparse: context imbalance in '_raw_read_unlock' - unexpected unlock kernel/locking/spinlock.c:261:17: sparse: sparse: context imbalance in '_raw_read_unlock_irqrestore' - unexpected unlock kernel/locking/spinlock.c:269:17: sparse: sparse: context imbalance in '_raw_read_unlock_irq' - unexpected unlock kernel/locking/spinlock.c:277:17: sparse: sparse: context imbalance in '_raw_read_unlock_bh' - unexpected unlock kernel/locking/spinlock.c:293:17: sparse: sparse: context imbalance in '_raw_write_lock' - wrong count at exit include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in '_raw_write_lock_irqsave' - wrong count at exit include/asm-generic/preempt.h:16:17: sparse: sparse: context imbalance in '_raw_write_lock_irq' - wrong count at exit kernel/locking/spinlock.c:317:17: sparse: sparse: context imbalance in '_raw_write_lock_bh' - wrong count at exit kernel/locking/spinlock.c:325:17: sparse: sparse: context imbalance in '_raw_write_unlock' - unexpected unlock kernel/locking/spinlock.c:333:17: sparse: sparse: context imbalance in '_raw_write_unlock_irqrestore' - unexpected unlock kernel/locking/spinlock.c:341:17: sparse: sparse: context imbalance in '_raw_write_unlock_irq' - unexpected unlock kernel/locking/spinlock.c:349:17: sparse: sparse: context imbalance in '_raw_write_unlock_bh' - unexpected unlock vim +/_raw_spin_lock_irqsave +16 include/asm-generic/preempt.h a787870924dbd6f Peter Zijlstra 2013-08-14 13 2e636d5e66c35df Peter Zijlstra 2016-05-16 14 static __always_inline volatile int *preempt_count_ptr(void) a787870924dbd6f Peter Zijlstra 2013-08-14 15 { a787870924dbd6f Peter Zijlstra 2013-08-14 @16 return ¤t_thread_info()->preempt_count; a787870924dbd6f Peter Zijlstra 2013-08-14 17 } a787870924dbd6f Peter Zijlstra 2013-08-14 18 :::::: The code at line 16 was first introduced by commit :::::: a787870924dbd6f321661e06d4ec1c7a408c9ccf sched, arch: Create asm/preempt.h :::::: TO: Peter Zijlstra <[email protected]> :::::: CC: Ingo Molnar <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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