From: kernel test robot <lkp@intel.com>
To: Sun Jian <sun.jian.kdev@gmail.com>,
mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org
Cc: oe-kbuild-all@lists.linux.dev, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
vschneid@redhat.com, nathan@kernel.org,
nick.desaulniers+lkml@gmail.com, morbo@google.com,
justinstitt@google.com, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, Sun Jian <sun.jian.kdev@gmail.com>
Subject: Re: [PATCH] sched: rcu: fix rq->{curr,donor} address space annotations
Date: Sun, 15 Feb 2026 03:44:48 +0800 [thread overview]
Message-ID: <202602150345.VAM4TsvX-lkp@intel.com> (raw)
In-Reply-To: <20260214102005.1398306-1-sun.jian.kdev@gmail.com>
Hi Sun,
kernel test robot noticed the following build warnings:
[auto build test WARNING on peterz-queue/sched/core]
[also build test WARNING on linus/master v6.19 next-20260213]
[cannot apply to tip/sched/core]
[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/Sun-Jian/sched-rcu-fix-rq-curr-donor-address-space-annotations/20260214-182109
base: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core
patch link: https://lore.kernel.org/r/20260214102005.1398306-1-sun.jian.kdev%40gmail.com
patch subject: [PATCH] sched: rcu: fix rq->{curr,donor} address space annotations
config: microblaze-randconfig-r131-20260214 (https://download.01.org/0day-ci/archive/20260215/202602150345.VAM4TsvX-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260215/202602150345.VAM4TsvX-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/202602150345.VAM4TsvX-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/rt.c:1493:31: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:1815:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/rt.c:1815:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/rt.c:1815:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/rt.c:1512:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/rt.c:1512:14: sparse: expected struct task_struct *curr
kernel/sched/rt.c:1512:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1513:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/rt.c:1513:15: sparse: expected struct task_struct *donor
kernel/sched/rt.c:1513:15: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/rt.c:1574:45: 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:1574:45: sparse: expected struct task_struct *p
kernel/sched/rt.c:1574:45: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:1616:39: 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:1616:39: sparse: expected struct task_struct *donor
kernel/sched/rt.c:1616:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:1641:64: 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:1641:64: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:1641:64: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:1982:40: 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:1982:40: sparse: expected struct task_struct *task
kernel/sched/rt.c:1982:40: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2005:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:2005:13: sparse: struct task_struct *
kernel/sched/rt.c:2005:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/rt.c:2356:54: 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:2356:54: sparse: expected struct task_struct *tsk
kernel/sched/rt.c:2356:54: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/rt.c:2358:40: 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:2358:40: sparse: expected struct task_struct *p
kernel/sched/rt.c:2358:40: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/rt.c:2358:62: 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:2358:62: sparse: expected struct task_struct *p
kernel/sched/rt.c:2358:62: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/build_policy.c: note: in included file:
kernel/sched/deadline.c:2922:23: 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:2922:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2922:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2932:13: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2932:13: sparse: struct task_struct *
kernel/sched/deadline.c:2932:13: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3038:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3038:25: sparse: struct task_struct *
kernel/sched/deadline.c:3038:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2539:42: 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:2539:42: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2539:42: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:2549:38: 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:2549:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2549:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1198:39: 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:1198:39: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1198:39: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1198:85: 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:1198:85: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:1198:85: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:1296:23: 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:1296:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1296:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:1815:31: 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:1815:31: sparse: expected struct task_struct *p
kernel/sched/deadline.c:1815:31: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:1815:70: 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:1815:70: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:1815:70: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:1941:39: 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:1941:39: sparse: expected struct task_struct *donor
kernel/sched/deadline.c:1941:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2758:9: 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:2758:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/deadline.c:2758:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/deadline.c:2419:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:2419:14: sparse: expected struct task_struct *curr
kernel/sched/deadline.c:2419:14: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2420:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu * @@
kernel/sched/deadline.c:2420:15: sparse: expected struct task_struct *donor
kernel/sched/deadline.c:2420:15: sparse: got struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:2494:43: 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:2494:43: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2494:43: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:3083:38: 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:3083:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:3083:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:3085:23: 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:3085:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:3085:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:3087:44: 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:3087:44: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:3087:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:3340:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3340:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3340:23: sparse: struct task_struct *
kernel/sched/deadline.c:3393:32: 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:1382:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1573:15: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:1958:13: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:1979:23: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/sched.h:2812:35: 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:2316:45: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/sched.h:2812:35: 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:2359:32: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:2360:32: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:2441:33: sparse: sparse: dereference of noderef expression
kernel/sched/rt.c:2479:33: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/pelt.c:480:50: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/deadline.c:1169:19: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:1808:11: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2384:11: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2493:15: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2548:34: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2579:15: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2923:54: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2923:54: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:2924:15: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:3046:50: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:3046:50: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/sched.h:2812:35: 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/deadline.c:3086:16: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:3394:54: sparse: sparse: dereference of noderef expression
kernel/sched/deadline.c:3394:54: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1307:11: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1665:15: sparse: sparse: dereference of noderef expression
vim +2812 kernel/sched/sched.h
04746ed80bcf31 Ingo Molnar 2024-04-07 2809
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2810 static inline struct task_struct *get_push_task(struct rq *rq)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2811 {
af0c8b2bf67b25 Peter Zijlstra 2024-10-09 @2812 struct task_struct *p = rq->donor;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2813
5cb9eaa3d274f7 Peter Zijlstra 2020-11-17 2814 lockdep_assert_rq_held(rq);
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2815
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2816 if (rq->push_busy)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2817 return NULL;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2818
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2819 if (p->nr_cpus_allowed == 1)
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2820 return NULL;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2821
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2822 if (p->migration_disabled)
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2823 return NULL;
e681dcbaa4b284 Sebastian Andrzej Siewior 2021-08-26 2824
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2825 rq->push_busy = true;
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2826 return get_task_struct(p);
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2827 }
a7c81556ec4d34 Peter Zijlstra 2020-09-28 2828
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-02-14 19:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-14 10:20 [PATCH] sched: rcu: fix rq->{curr,donor} address space annotations Sun Jian
2026-02-14 19:44 ` kernel test robot [this message]
2026-02-20 19:33 ` [PATCH v2] " Sun Jian
2026-02-20 19:48 ` Peter Zijlstra
2026-02-21 1:53 ` sun jian
2026-02-20 23:19 ` kernel test robot
2026-02-20 23:29 ` kernel test robot
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