* [peterz-queue:sched/core-sched 41/43] kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
@ 2021-03-03 12:41 kernel test robot
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From: kernel test robot @ 2021-03-03 12:41 UTC (permalink / raw)
To: kbuild
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CC: kbuild-all(a)lists.01.org
TO: Peter Zijlstra <peterz@infradead.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core-sched
head: 4a2c9e0f53dc03a005b20f0355d0833b577e304b
commit: d00b3b305224f410fc0dff05c6a5d22c20201d9d [41/43] sched: Use raw_spin_rq_*lock*() helpers
:::::: branch date: 4 hours ago
:::::: commit date: 4 hours ago
config: powerpc64-randconfig-s032-20210303 (attached as .config)
compiler: powerpc64le-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: v0.6.3-245-gacc5c298-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=d00b3b305224f410fc0dff05c6a5d22c20201d9d
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue sched/core-sched
git checkout d00b3b305224f410fc0dff05c6a5d22c20201d9d
# 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=powerpc64
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 >>)"
kernel/livepatch/transition.c:372:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/livepatch/transition.c:372:44: sparse: expected struct spinlock [usertype] *lock
kernel/livepatch/transition.c:372:44: sparse: got struct spinlock [noderef] __rcu *
kernel/livepatch/transition.c:374:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct spinlock [usertype] *lock @@ got struct spinlock [noderef] __rcu * @@
kernel/livepatch/transition.c:374:46: sparse: expected struct spinlock [usertype] *lock
kernel/livepatch/transition.c:374:46: sparse: got struct spinlock [noderef] __rcu *
>> kernel/livepatch/transition.c:281:13: sparse: sparse: context imbalance in 'klp_try_switch_task' - different lock contexts for basic block
--
kernel/sched/core.c:254:6: sparse: sparse: symbol 'sched_core_get' was not declared. Should it be static?
kernel/sched/core.c:262:6: sparse: sparse: symbol 'sched_core_put' was not declared. Should it be static?
kernel/sched/core.c:562:48: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:562:48: sparse: expected struct task_struct *p
kernel/sched/core.c:562:48: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:816:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:816:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:816:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1936:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:1936:33: sparse: expected struct task_struct *p
kernel/sched/core.c:1936:33: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1936:68: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:1936:68: sparse: expected struct task_struct *tsk
kernel/sched/core.c:1936:68: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:3143:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:3143:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3143:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3340:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:3340:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3340:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:8319:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *push_task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:8319:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:8319:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:4761:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:4761:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:4761:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5436:32: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:5436:32: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:5436:32: sparse: struct task_struct *
kernel/sched/core.c:5463:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:5463:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:5463:23: sparse: struct task_struct *
kernel/sched/core.c:5471:46: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:5471:46: sparse: struct task_struct *
kernel/sched/core.c:5471:46: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:5528:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:5528:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:5528:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:5646:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:5646:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:5646:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6305:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6305:17: sparse: struct task_struct *
kernel/sched/core.c:6305:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6512:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6512:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6512:22: sparse: struct task_struct *
kernel/sched/core.c:10200:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:10200:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10200:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/core.c:384:16: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
>> kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
>> kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/core.c: note: in included file:
kernel/sched/pelt.h:85:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/pelt.h:85:13: sparse: expected struct task_struct const *p
kernel/sched/pelt.h:85:13: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:562:11: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:1927:33: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:1928:19: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:1929:37: sparse: sparse: dereference of noderef expression
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/core.c:1902:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:1902:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:1902:38: sparse: struct task_struct const *
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
kernel/sched/sched.h:1880:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1880:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1880:25: sparse: struct task_struct *
kernel/sched/sched.h:2038:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2038:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2038:9: sparse: struct task_struct *
vim +/__task_rq_lock +1138 kernel/sched/sched.h
172de0bfac8d66 Peter Zijlstra 2020-11-17 1137
172de0bfac8d66 Peter Zijlstra 2020-11-17 @1138 static inline raw_spinlock_t *rq_lockp(struct rq *rq)
172de0bfac8d66 Peter Zijlstra 2020-11-17 1139 {
172de0bfac8d66 Peter Zijlstra 2020-11-17 1140 if (sched_core_enabled(rq))
172de0bfac8d66 Peter Zijlstra 2020-11-17 1141 return &rq->core->__lock;
172de0bfac8d66 Peter Zijlstra 2020-11-17 1142
172de0bfac8d66 Peter Zijlstra 2020-11-17 1143 return &rq->__lock;
172de0bfac8d66 Peter Zijlstra 2020-11-17 1144 }
172de0bfac8d66 Peter Zijlstra 2020-11-17 1145
:::::: The code at line 1138 was first introduced by commit
:::::: 172de0bfac8d66fab5ae0a0a2f93348db895d4bb sched: Core-wide rq->lock
:::::: TO: Peter Zijlstra <peterz@infradead.org>
:::::: CC: Peter Zijlstra <peterz@infradead.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-03-03 12:41 [peterz-queue:sched/core-sched 41/43] kernel/sched/sched.h:1138:30: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit kernel test robot
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