* Re: [RFC PATCH v3 6/6] Propagate negative bias
[not found] <f60a29ac1af5098e0d37d426aec27db05d5d43e1.1715082714.git.hongyan.xia2@arm.com>
@ 2024-05-09 22:16 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-05-09 22:16 UTC (permalink / raw)
To: Hongyan Xia; +Cc: llvm, oe-kbuild-all
Hi Hongyan,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/sched/core]
[also build test ERROR on tip/master next-20240509]
[cannot apply to rafael-pm/linux-next rafael-pm/bleeding-edge linus/master tip/auto-latest peterz-queue/sched/core v6.9-rc7]
[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/Hongyan-Xia/Revert-sched-uclamp-Set-max_spare_cap_cpu-even-if-max_spare_cap-is-0/20240507-205300
base: tip/sched/core
patch link: https://lore.kernel.org/r/f60a29ac1af5098e0d37d426aec27db05d5d43e1.1715082714.git.hongyan.xia2%40arm.com
patch subject: [RFC PATCH v3 6/6] Propagate negative bias
config: arm-allnoconfig (https://download.01.org/0day-ci/archive/20240510/202405100609.722jdfri-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project b910bebc300dafb30569cecc3017b446ea8eafa0)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240510/202405100609.722jdfri-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/202405100609.722jdfri-lkp@intel.com/
All errors (new ones prefixed by >>):
429 | if (!(condition)) \
| ^~~~~~~~~
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:27: error: no member named 'avg' in 'struct cfs_rq'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:417:38: note: expanded from macro '__native_word'
417 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:449:22: note: expanded from macro 'compiletime_assert'
449 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:437:23: note: expanded from macro '_compiletime_assert'
437 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:429:9: note: expanded from macro '__compiletime_assert'
429 | if (!(condition)) \
| ^~~~~~~~~
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:27: error: no member named 'avg' in 'struct cfs_rq'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:49:33: note: expanded from macro 'READ_ONCE'
49 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:48: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:449:22: note: expanded from macro 'compiletime_assert'
449 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:437:23: note: expanded from macro '_compiletime_assert'
437 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:429:9: note: expanded from macro '__compiletime_assert'
429 | if (!(condition)) \
| ^~~~~~~~~
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:27: error: no member named 'avg' in 'struct cfs_rq'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:405:13: note: expanded from macro '__unqual_scalar_typeof'
405 | _Generic((x), \
| ^
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:27: error: no member named 'avg' in 'struct cfs_rq'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:65: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
include/linux/compiler_types.h:412:15: note: expanded from macro '__unqual_scalar_typeof'
412 | default: (x)))
| ^
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:27: error: no member named 'avg' in 'struct cfs_rq'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:50:14: note: expanded from macro 'READ_ONCE'
50 | __READ_ONCE(x); \
| ^
include/asm-generic/rwonce.h:44:72: note: expanded from macro '__READ_ONCE'
44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
| ^
In file included from kernel/sched/fair.c:54:
kernel/sched/sched.h:3065:9: error: returning 'void' from a function with incompatible result type 'unsigned long'
3065 | return READ_ONCE(rq->cfs.avg.util_avg);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:47:28: note: expanded from macro 'READ_ONCE'
47 | #define READ_ONCE(x) \
| ^
48 | ({ \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
49 | compiletime_assert_rwonce_type(x); \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
50 | __READ_ONCE(x); \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
51 | })
| ~~
kernel/sched/fair.c:6795:29: error: no member named 'avg' in 'struct cfs_rq'
6795 | util_bias_enqueue(&rq->cfs.avg, p);
| ~~~~~~~ ^
kernel/sched/fair.c:6889:29: error: no member named 'avg' in 'struct cfs_rq'
6889 | util_bias_dequeue(&rq->cfs.avg, p);
| ~~~~~~~ ^
>> kernel/sched/fair.c:6890:2: error: call to undeclared function 'propagate_negative_bias'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
6890 | propagate_negative_bias(p);
| ^
1 warning and 12 errors generated.
vim +/propagate_negative_bias +6890 kernel/sched/fair.c
6823
6824 /*
6825 * The dequeue_task method is called before nr_running is
6826 * decreased. We remove the task from the rbtree and
6827 * update the fair scheduling stats:
6828 */
6829 static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
6830 {
6831 struct cfs_rq *cfs_rq;
6832 struct sched_entity *se = &p->se;
6833 int task_sleep = flags & DEQUEUE_SLEEP;
6834 int idle_h_nr_running = task_has_idle_policy(p);
6835 bool was_sched_idle = sched_idle_rq(rq);
6836
6837 util_est_dequeue(&rq->cfs, p);
6838
6839 for_each_sched_entity(se) {
6840 cfs_rq = cfs_rq_of(se);
6841 dequeue_entity(cfs_rq, se, flags);
6842
6843 cfs_rq->h_nr_running--;
6844 cfs_rq->idle_h_nr_running -= idle_h_nr_running;
6845
6846 if (cfs_rq_is_idle(cfs_rq))
6847 idle_h_nr_running = 1;
6848
6849 /* end evaluation on encountering a throttled cfs_rq */
6850 if (cfs_rq_throttled(cfs_rq))
6851 goto dequeue_throttle;
6852
6853 /* Don't dequeue parent if it has other entities besides us */
6854 if (cfs_rq->load.weight) {
6855 /* Avoid re-evaluating load for this entity: */
6856 se = parent_entity(se);
6857 /*
6858 * Bias pick_next to pick a task from this cfs_rq, as
6859 * p is sleeping when it is within its sched_slice.
6860 */
6861 if (task_sleep && se && !throttled_hierarchy(cfs_rq))
6862 set_next_buddy(se);
6863 break;
6864 }
6865 flags |= DEQUEUE_SLEEP;
6866 }
6867
6868 for_each_sched_entity(se) {
6869 cfs_rq = cfs_rq_of(se);
6870
6871 update_load_avg(cfs_rq, se, UPDATE_TG);
6872 se_update_runnable(se);
6873 update_cfs_group(se);
6874
6875 cfs_rq->h_nr_running--;
6876 cfs_rq->idle_h_nr_running -= idle_h_nr_running;
6877
6878 if (cfs_rq_is_idle(cfs_rq))
6879 idle_h_nr_running = 1;
6880
6881 /* end evaluation on encountering a throttled cfs_rq */
6882 if (cfs_rq_throttled(cfs_rq))
6883 goto dequeue_throttle;
6884
6885 }
6886
6887 /* At this point se is NULL and we are at root level*/
6888 sub_nr_running(rq, 1);
6889 util_bias_dequeue(&rq->cfs.avg, p);
> 6890 propagate_negative_bias(p);
6891 /* XXX: We should skip the update above and only do it once here. */
6892 cpufreq_update_util(rq, 0);
6893
6894 /* balance early to pull high priority tasks */
6895 if (unlikely(!was_sched_idle && sched_idle_rq(rq)))
6896 rq->next_balance = jiffies;
6897
6898 dequeue_throttle:
6899 util_est_update(&rq->cfs, p, task_sleep);
6900 hrtick_update(rq);
6901
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