From: kernel test robot <lkp@intel.com>
To: Tejun Heo <tj@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Andrea Righi <arighi@nvidia.com>
Subject: kernel/sched/ext/sub.c:288:16: sparse: sparse: incorrect type in argument 1 (different address spaces)
Date: Fri, 04 Sep 2026 03:04:37 +0800 [thread overview]
Message-ID: <202609040234.7zfFgTWS-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 940de590b839f71d6dc846160534bf202401b8b7
commit: bb70e4fb626b70895b7917ee97c256f24d019c34 sched_ext: Eject the top rescue consumer on overload
date: 4 weeks ago
config: sparc-randconfig-r131-20260826 (https://download.01.org/0day-ci/archive/20260904/202609040234.7zfFgTWS-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 16.1.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260904/202609040234.7zfFgTWS-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
| Fixes: bb70e4fb626b ("sched_ext: Eject the top rescue consumer on overload")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609040234.7zfFgTWS-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/deadline.c:3314:23: 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:3314:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:3314:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:3316:44: 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:3316:44: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:3316:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:3578:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3578:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3578:23: sparse: struct task_struct *
kernel/sched/deadline.c:3631:32: 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/ext/ext.c:391:46: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:1423:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:1613:48: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext/ext.c:1613:48: sparse: struct task_struct *
kernel/sched/ext/ext.c:1613:48: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext/ext.c:2370:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:2384:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/ext/ext.c:3302:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:4381:48: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:4382:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:6821:57: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:6822:51: sparse: sparse: incorrect type in argument 5 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:8357:32: 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/ext/ext.c:8391:42: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext/ext.c:9776:18: sparse: sparse: symbol 'scx_bpf_reenqueue_local___v2' was not declared. Should it be static?
kernel/sched/ext/ext.c:10275:33: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext/ext.c:10275:33: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext/ext.c:10275:33: sparse: struct task_struct const *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/build_policy.c: note: in included file:
kernel/sched/build_policy.c: note: in included file:
>> kernel/sched/ext/sub.c:288:16: 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/ext/sub.c:288:16: 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/ext/sub.c:288:16: 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/ext/sub.c:288:16: 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/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1418:22: 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:1313:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/rt.c:1313:23: sparse: struct task_struct *
kernel/sched/rt.c:1313:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2481:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:26: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2481:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:26: sparse: struct task_struct *
kernel/sched/sched.h:1442:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1442:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1442:25: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/deadline.c:2339:15: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:2339:15: sparse: struct task_struct *
kernel/sched/deadline.c:2339:15: sparse: struct task_struct [noderef] __rcu *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2481:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:26: sparse: struct task_struct *
kernel/sched/sched.h:2481:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2481:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2481:26: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:2470:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2470:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2470:25: sparse: struct task_struct *
kernel/sched/sched.h:1442:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:1442:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:1442:25: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/syscalls.c:1343:11: sparse: sparse: dereference of noderef expression
kernel/sched/build_policy.c: note: in included file:
kernel/sched/rt.c:1676:15: sparse: sparse: dereference of noderef expression
vim +288 kernel/sched/ext/sub.c
263
264 /**
265 * scx_rescue_charge - Charge the rescuee's runtime
266 * @rq: rq the rescuee is running on
267 * @delta_exec: runtime being charged
268 *
269 * Also ends the rescue once the admitted slice has been served in full. Ending
270 * on served time rather than slice exhaustion bounds both the rescue and the
271 * charging when a scheduler extends the rescuee's slice.
272 */
273 void scx_rescue_charge(struct rq *rq, s64 delta_exec)
274 {
275 struct scx_sched_pcpu *pcpu;
276
277 lockdep_assert_rq_held(rq);
278
279 /*
280 * A rescue slice is bounded by one quantum and tick-driven expiry can
281 * overshoot by up to a tick. Clamp to avoid wild over-charges on VMs.
282 */
283 delta_exec = min_t(s64, delta_exec, scx_rescue_quantum_ns + TICK_NSEC);
284
285 rq->scx.rescue.budget -= delta_exec;
286
287 /* per-cpu usage average feeds the overload victim pick */
> 288 pcpu = per_cpu_ptr(scx_task_sched(rq->curr)->pcpu, cpu_of(rq));
289 pcpu->rescue_avg = scx_rescue_decay_avg(pcpu) + delta_exec;
290
291 if (!scx_rescue_slice_remaining(rq))
292 scx_task_slice_ended(rq, rq->scx.rescue.curr);
293 }
294
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-09-03 19:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-03 19:04 kernel test robot [this message]
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2026-08-27 8:13 kernel test robot
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