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Message-ID: <202207220642.sbCB4Bcf-lkp@intel.com>
Date: Fri, 22 Jul 2022 06:10:13 +0800
From: kernel test robot <lkp@...el.com>
To: Chengming Zhou <zhouchengming@...edance.com>, hannes@...xchg.org,
surenb@...gle.com, mingo@...hat.com, peterz@...radead.org,
tj@...nel.org, corbet@....net, akpm@...ux-foundation.org,
rdunlap@...radead.org
Cc: kbuild-all@...ts.01.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, songmuchun@...edance.com,
cgroups@...r.kernel.org,
Chengming Zhou <zhouchengming@...edance.com>
Subject: Re: [PATCH 9/9] sched/psi: add PSI_IRQ to track IRQ/SOFTIRQ pressure
Hi Chengming,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tip/sched/core]
[also build test WARNING on akpm-mm/mm-everything linus/master v5.19-rc7]
[cannot apply to tj-cgroup/for-next next-20220721]
[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/Chengming-Zhou/sched-psi-some-optimization-and-extension/20220721-120833
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 401e4963bf45c800e3e9ea0d3a0289d738005fd4
config: x86_64-randconfig-s022-20220718 (https://download.01.org/0day-ci/archive/20220722/202207220642.sbCB4Bcf-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/d14f2a9ff31fefc5b28a16addaa832dc80d84189
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Chengming-Zhou/sched-psi-some-optimization-and-extension/20220721-120833
git checkout d14f2a9ff31fefc5b28a16addaa832dc80d84189
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> kernel/sched/core.c:711:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:711:31: sparse: expected struct task_struct *curr
kernel/sched/core.c:711:31: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:781:48: 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:781:48: sparse: expected struct task_struct *p
kernel/sched/core.c:781:48: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1028:38: 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:1028:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:1028:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2192:33: 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:2192:33: sparse: expected struct task_struct *p
kernel/sched/core.c:2192:33: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2192:68: 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:2192:68: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2192:68: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5376:38: 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:5376:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:5376:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6322:14: 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:6322:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:6322:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6848:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6848:17: sparse: struct task_struct *
kernel/sched/core.c:6848:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:7064:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7064:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:7064:22: sparse: struct task_struct *
kernel/sched/core.c:11121:25: 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:11121:25: sparse: expected struct task_struct *p
kernel/sched/core.c:11121:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:537:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/core.c:570:23: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:586:6: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
kernel/sched/core.c:624:36: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
kernel/sched/core.c:665:36: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/core.c:781:11: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2183:33: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2184:19: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:2185:18: sparse: sparse: dereference of noderef expression
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1592:9: sparse: sparse: context imbalance in 'ttwu_runnable' - wrong count at exit
kernel/sched/core.c:4262:9: sparse: sparse: context imbalance in 'task_call_func' - wrong count at exit
kernel/sched/sched.h:1592:9: sparse: sparse: context imbalance in 'wake_up_new_task' - wrong count at exit
kernel/sched/core.c:5035:9: sparse: sparse: context imbalance in 'finish_task_switch' - wrong count at exit
kernel/sched/sched.h:2053:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2053:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2053:25: sparse: struct task_struct *
kernel/sched/sched.h:2210:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2210:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2210:9: sparse: struct task_struct *
kernel/sched/sched.h:2210:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2210:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2210:9: sparse: struct task_struct *
kernel/sched/sched.h:2053:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2053:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2053:25: sparse: struct task_struct *
kernel/sched/sched.h:2210:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2210:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2210:9: sparse: struct task_struct *
kernel/sched/sched.h:2053:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2053:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2053:25: sparse: struct task_struct *
kernel/sched/sched.h:2210:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2210:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2210:9: sparse: struct task_struct *
kernel/sched/sched.h:2053:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2053:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2053:25: sparse: struct task_struct *
kernel/sched/sched.h:2210:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2210:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2210:9: sparse: struct task_struct *
kernel/sched/sched.h:2053:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2053:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2053:25: sparse: struct task_struct *
vim +711 kernel/sched/core.c
675
676 /*
677 * RQ-clock updating methods:
678 */
679
680 static void update_rq_clock_task(struct rq *rq, s64 delta)
681 {
682 /*
683 * In theory, the compile should just see 0 here, and optimize out the call
684 * to sched_rt_avg_update. But I don't trust it...
685 */
686 s64 __maybe_unused steal = 0, irq_delta = 0;
687
688 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
689 irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time;
690
691 /*
692 * Since irq_time is only updated on {soft,}irq_exit, we might run into
693 * this case when a previous update_rq_clock() happened inside a
694 * {soft,}irq region.
695 *
696 * When this happens, we stop ->clock_task and only update the
697 * prev_irq_time stamp to account for the part that fit, so that a next
698 * update will consume the rest. This ensures ->clock_task is
699 * monotonic.
700 *
701 * It does however cause some slight miss-attribution of {soft,}irq
702 * time, a more accurate solution would be to update the irq_time using
703 * the current rq->clock timestamp, except that would require using
704 * atomic ops.
705 */
706 if (irq_delta > delta)
707 irq_delta = delta;
708
709 rq->prev_irq_time += irq_delta;
710 delta -= irq_delta;
> 711 psi_account_irqtime(rq->curr, irq_delta);
712 #endif
713 #ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
714 if (static_key_false((¶virt_steal_rq_enabled))) {
715 steal = paravirt_steal_clock(cpu_of(rq));
716 steal -= rq->prev_steal_time_rq;
717
718 if (unlikely(steal > delta))
719 steal = delta;
720
721 rq->prev_steal_time_rq += steal;
722 delta -= steal;
723 }
724 #endif
725
726 rq->clock_task += delta;
727
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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