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Message-ID: <202507081317.4IdE2euZ-lkp@intel.com>
Date: Tue, 8 Jul 2025 13:33:38 +0800
From: kernel test robot <lkp@...el.com>
To: Pan Deng <pan.deng@...el.com>, peterz@...radead.org, mingo@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
tianyou.li@...el.com, tim.c.chen@...ux.intel.com,
yu.c.chen@...el.com, pan.deng@...el.com
Subject: Re: [PATCH 3/4] sched/rt: Split root_domain->rto_count to
per-NUMA-node counters
Hi Pan,
kernel test robot noticed the following build warnings:
[auto build test WARNING on v6.16-rc5]
[also build test WARNING on linus/master]
[cannot apply to tip/sched/core peterz-queue/sched/core tip/master tip/auto-latest next-20250704]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Pan-Deng/sched-rt-Optimize-cpupri_vec-layout-to-mitigate-cache-line-contention/20250707-131831
base: v6.16-rc5
patch link: https://lore.kernel.org/r/2c1e1dbacaddd881f3cca340ece1f9268029b620.1751852370.git.pan.deng%40intel.com
patch subject: [PATCH 3/4] sched/rt: Split root_domain->rto_count to per-NUMA-node counters
config: loongarch-randconfig-r112-20250708 (https://download.01.org/0day-ci/archive/20250708/202507081317.4IdE2euZ-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 15.1.0
reproduce: (https://download.01.org/0day-ci/archive/20250708/202507081317.4IdE2euZ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507081317.4IdE2euZ-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/rt.c:1679:45: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/rt.c:1679:45: sparse: expected struct task_struct *p
kernel/sched/rt.c:1679:45: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:1722:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/rt.c:1722:39: sparse: expected struct task_struct *donor
kernel/sched/rt.c:1722:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:1742:64: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:1742:64: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:1742:64: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2084:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2084:40: sparse: expected struct task_struct *task
kernel/sched/rt.c:2084:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2107:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2107:13: sparse: struct task_struct *
kernel/sched/rt.c:2107:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:2453:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/rt.c:2453:54: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:2453:54: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2455:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/rt.c:2455:40: sparse: expected struct task_struct *p
kernel/sched/rt.c:2455:40: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:2455:62: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/rt.c:2455:62: sparse: expected struct task_struct *p
kernel/sched/rt.c:2455:62: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/build_policy.c: note: in included file:
kernel/sched/deadline.c:2717:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:2717:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2717:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2727:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2727:13: sparse: struct task_struct *
kernel/sched/deadline.c:2727:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2833:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2833:25: sparse: struct task_struct *
kernel/sched/deadline.c:2833:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2357:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2357:42: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2357:42: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:2368:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:2368:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2368:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1262:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:1262:39: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1262:39: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1262:85: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:1262:85: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:1262:85: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:1362:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:1362:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1362:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:1671:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:1671:31: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1671:31: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1671:70: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:1671:70: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:1671:70: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:1760:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:1760:39: sparse: expected struct task_struct *donor
kernel/sched/deadline.c:1760:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2578:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/deadline.c:2578:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/deadline.c:2578:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/deadline.c:2242:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:2242:14: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:2242:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2243:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:2243:15: sparse: expected struct task_struct *donor
kernel/sched/deadline.c:2243:15: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2318:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:2318:43: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2318:43: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2878:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:2878:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2878:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2880:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:2880:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2880:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2882:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2882:44: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2882:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:3071:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3071:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3071:23: sparse: struct task_struct *
kernel/sched/deadline.c:3120:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:206:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/syscalls.c:206:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/syscalls.c:206:22: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2276:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2276:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2276:25: sparse: struct task_struct *
kernel/sched/sched.h:2276:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2276:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2276:25: sparse: struct task_struct *
kernel/sched/sched.h:2287:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2287:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2287:26: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:2413:45: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/sched.h:2627:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:2456:32: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:2457:32: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2276:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2276:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2276:25: sparse: struct task_struct *
kernel/sched/sched.h:2287:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2287:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2287:26: sparse: struct task_struct *
kernel/sched/sched.h:2276:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2276:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2276:25: sparse: struct task_struct *
kernel/sched/sched.h:2276:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2276:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2276:25: sparse: struct task_struct *
kernel/sched/sched.h:2287:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2287:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2287:26: sparse: struct task_struct *
kernel/sched/sched.h:2287:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2287:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2287:26: sparse: struct task_struct *
kernel/sched/sched.h:2476:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2476:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2476:9: sparse: struct task_struct *
kernel/sched/sched.h:2287:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2287:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2287:26: sparse: struct task_struct *
kernel/sched/sched.h:2476:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2476:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2476:9: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1296:6: sparse: sparse: context imbalance in 'sched_getaffinity' - different lock contexts for basic block
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1767:15: sparse: sparse: dereference of noderef expression
vim +2627 kernel/sched/sched.h
04746ed80bcf31 Ingo Molnar 2024-04-07 2624
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2625 static inline struct task_struct *get_push_task(struct rq *rq)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2626 {
af0c8b2bf67b25 Peter Zijlstra 2024-10-09 @2627 struct task_struct *p = rq->donor;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2628
5cb9eaa3d274f7 Peter Zijlstra 2020-11-17 2629 lockdep_assert_rq_held(rq);
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2630
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2631 if (rq->push_busy)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2632 return NULL;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2633
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2634 if (p->nr_cpus_allowed == 1)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2635 return NULL;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2636
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2637 if (p->migration_disabled)
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2638 return NULL;
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2639
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2640 rq->push_busy = true;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2641 return get_task_struct(p);
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2642 }
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2643
--
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