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BUG: KMSAN: uninit-value in accumulate_sum kernel/sched/fair.c:3131 [inline]
BUG: KMSAN: uninit-value in ___update_load_sum kernel/sched/fair.c:3214 [inline]
BUG: KMSAN: uninit-value in __update_load_avg_cfs_rq kernel/sched/fair.c:3320 [inline]
BUG: KMSAN: uninit-value in update_cfs_rq_load_avg+0x1380/0x1ad0 kernel/sched/fair.c:3696
CPU: 1 PID: 32592 Comm: blkid Not tainted 4.17.0-rc5+ #101
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x149/0x260 mm/kmsan/kmsan.c:1084
 __msan_warning_32+0x6e/0xc0 mm/kmsan/kmsan_instr.c:686
 accumulate_sum kernel/sched/fair.c:3131 [inline]
 ___update_load_sum kernel/sched/fair.c:3214 [inline]
 __update_load_avg_cfs_rq kernel/sched/fair.c:3320 [inline]
 update_cfs_rq_load_avg+0x1380/0x1ad0 kernel/sched/fair.c:3696
 update_load_avg+0xe5e/0x2d00 kernel/sched/fair.c:3797
 enqueue_entity kernel/sched/fair.c:4173 [inline]
 enqueue_task_fair+0x548/0x4470 kernel/sched/fair.c:5359
 enqueue_task kernel/sched/core.c:751 [inline]
 activate_task kernel/sched/core.c:770 [inline]
 ttwu_activate kernel/sched/core.c:1641 [inline]
 ttwu_do_activate kernel/sched/core.c:1700 [inline]
 ttwu_queue kernel/sched/core.c:1845 [inline]
 try_to_wake_up+0x13c0/0x2090 kernel/sched/core.c:2058
 wake_up_process+0x34/0x40 kernel/sched/core.c:2131
 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1647
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x66/0x230 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
 </IRQ>
RIP: 0033:0x7f63b7d076d2
RSP: 002b:00007ffe27cbe7a0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000004122 RBX: 0000000001c0003f RCX: 000000000000003f
RDX: 0000000000000000 RSI: 0000000002d00000 RDI: 0000000000000002
RBP: 0000000000008000 R08: 0000000000000003 R09: 0000000000000004
R10: 000000000000000d R11: 0000000001020800 R12: 00007f63b7f0eba8
R13: 00007ffe27cbe888 R14: 0000000000000001 R15: 0000000000000001

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:529
 update_load_sub kernel/sched/fair.c:129 [inline]
 account_entity_dequeue kernel/sched/fair.c:2661 [inline]
 dequeue_entity kernel/sched/fair.c:4267 [inline]
 dequeue_task_fair+0x14ea/0x32f0 kernel/sched/fair.c:5407
 dequeue_task kernel/sched/core.c:762 [inline]
 deactivate_task+0x50a/0x780 kernel/sched/core.c:778
 __schedule+0x164/0x730 kernel/sched/core.c:3457
 do_task_dead+0xcc/0xf0 kernel/sched/core.c:3524
 do_exit+0x340e/0x38d0 kernel/exit.c:924
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 __do_sys_exit_group+0x21/0x30 kernel/exit.c:981
 __se_sys_exit_group+0x14/0x20 kernel/exit.c:979
 __x64_sys_exit_group+0x4c/0x50 kernel/exit.c:979
 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:294 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:685
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:529
 update_load_set kernel/sched/fair.c:135 [inline]
 reweight_entity+0x128b/0x1a30 kernel/sched/fair.c:2780
 update_cfs_group kernel/sched/fair.c:2991 [inline]
 entity_tick kernel/sched/fair.c:4464 [inline]
 task_tick_fair+0x5f8/0x1050 kernel/sched/fair.c:9893
 scheduler_tick+0x288/0x480 kernel/sched/core.c:3088
 update_process_times+0x157/0x1a0 kernel/time/timer.c:1641
 tick_sched_handle kernel/time/tick-sched.c:164 [inline]
 tick_sched_timer+0x3ba/0x520 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt+0x66/0x230 arch/x86/kernel/apic/apic.c:1025
 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053
Local variable description: ----flags.i.i.i.i@_raw_spin_lock_irqsave
Variable was created at:
 _raw_spin_lock_irqsave+0x45/0xf0 kernel/locking/spinlock.c:150
 hrtimer_interrupt+0x107/0x13c0 kernel/time/hrtimer.c:1499
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