From: kernel test robot <lkp@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>
Subject: kernel/sched/core.c:881:49: sparse: sparse: incorrect type in argument 2 (different address spaces)
Date: Tue, 17 Feb 2026 10:31:46 +0800 [thread overview]
Message-ID: <202602171024.7LU9yYC8-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9702969978695d9a699a1f34771580cdbb153b33
commit: e38e5299747b23015b00b0109891815db44a2f30 sched/hrtick: Fix hrtick() vs. scheduling context
date: 2 months ago
config: i386-randconfig-063-20260215 (https://download.01.org/0day-ci/archive/20260217/202602171024.7LU9yYC8-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260217/202602171024.7LU9yYC8-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602171024.7LU9yYC8-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:330:56: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:330:56: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:330:56: sparse: struct task_struct *
kernel/sched/core.c:805:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:805:33: sparse: expected struct task_struct *task
kernel/sched/core.c:805:33: sparse: got struct task_struct [noderef] __rcu *curr
>> kernel/sched/core.c:881:49: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:881:49: sparse: expected struct task_struct *p
kernel/sched/core.c:881:49: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:1101:38: 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:1101:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:1101:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2175:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:2175:39: sparse: expected struct task_struct *donor
kernel/sched/core.c:2175:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:2186:65: 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:2186:65: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2186:65: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:3583:17: 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:3583:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3583:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3788:36: 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:3788:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3788:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:8065:43: 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:8065:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:8065:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5512:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:5512:15: sparse: expected struct task_struct *donor
kernel/sched/core.c:5512:15: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:6180:32: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6180:32: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6180:32: sparse: struct task_struct *
kernel/sched/core.c:6211:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6211:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6211:23: sparse: struct task_struct *
kernel/sched/core.c:6219:46: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6219:46: sparse: struct task_struct *
kernel/sched/core.c:6219:46: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6276:9: 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:6276:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:6276:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:6730:14: 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:6730:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:6730:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6797:37: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:6797:37: sparse: expected struct task_struct *prev
kernel/sched/core.c:6797:37: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:7303:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7303:17: sparse: struct task_struct *
kernel/sched/core.c:7303:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:10207:25: 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:10207:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10207:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:404:9: sparse: sparse: context imbalance in 'sched_core_lock' - different lock contexts for basic block
kernel/sched/core.c:414:17: sparse: sparse: context imbalance in 'sched_core_unlock' - unexpected unlock
kernel/sched/core.c:632:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/core.c:657:6: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:681:6: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1808:9: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
kernel/sched/sched.h:1808:9: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/core.c: note: in included file:
kernel/sched/pelt.h:102:13: 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:102:13: sparse: expected struct task_struct const *p
kernel/sched/pelt.h:102:13: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:881:11: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2256:35: sparse: sparse: context imbalance in 'wait_task_inactive' - different lock contexts for basic block
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:2302:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2302:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2302:26: sparse: struct task_struct *
kernel/sched/sched.h:2291:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2291:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2291:25: sparse: struct task_struct *
kernel/sched/core.c:2170:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:2170:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:2170:38: sparse: struct task_struct const *
kernel/sched/sched.h:2302:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2302:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2302:26: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2635:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2635:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2635:9: sparse: struct task_struct *
kernel/sched/sched.h:2302:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2302:26: sparse: struct task_struct [noderef] __rcu *
vim +881 kernel/sched/core.c
867
868 /*
869 * High-resolution timer tick.
870 * Runs from hardirq context with interrupts disabled.
871 */
872 static enum hrtimer_restart hrtick(struct hrtimer *timer)
873 {
874 struct rq *rq = container_of(timer, struct rq, hrtick_timer);
875 struct rq_flags rf;
876
877 WARN_ON_ONCE(cpu_of(rq) != smp_processor_id());
878
879 rq_lock(rq, &rf);
880 update_rq_clock(rq);
> 881 rq->donor->sched_class->task_tick(rq, rq->donor, 1);
882 rq_unlock(rq, &rf);
883
884 return HRTIMER_NORESTART;
885 }
886
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-02-17 2:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-17 2:31 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-01-13 10:27 kernel/sched/core.c:881:49: sparse: sparse: incorrect type in argument 2 (different address spaces) kernel test robot
2025-12-11 5:39 kernel test robot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202602171024.7LU9yYC8-lkp@intel.com \
--to=lkp@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=oe-kbuild-all@lists.linux.dev \
--cc=peterz@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox