IPVS: ftp: loaded support on port[0] = 21
==================================================================
BUG: KMSAN: uninit-value in __list_del_entry_valid+0x19d/0x440 lib/list_debug.c:45
CPU: 0 PID: 8 Comm: rcu_sched Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 __list_del_entry_valid+0x19d/0x440 lib/list_debug.c:45
 __list_del_entry include/linux/list.h:117 [inline]
 list_del_init include/linux/list.h:159 [inline]
 account_entity_dequeue kernel/sched/fair.c:2682 [inline]
 dequeue_entity kernel/sched/fair.c:4127 [inline]
 dequeue_task_fair+0xac0/0x2ea0 kernel/sched/fair.c:5266
 dequeue_task kernel/sched/core.c:785 [inline]
 deactivate_task+0x50d/0x780 kernel/sched/core.c:801
 __schedule+0x164/0x730 kernel/sched/core.c:3396
 schedule+0x1cc/0x2f0 kernel/sched/core.c:3505
 schedule_timeout+0x3e7/0x570 kernel/time/timer.c:1801
 rcu_gp_kthread+0x21e1/0x38d0 kernel/rcu/tree.c:2230
 kthread+0x539/0x720 kernel/kthread.c:239
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:406

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 __list_add include/linux/list.h:64 [inline]
 list_add include/linux/list.h:79 [inline]
 list_move include/linux/list.h:171 [inline]
 pick_next_task_fair+0x1e89/0x1f70 kernel/sched/fair.c:6748
 pick_next_task+0x1b4/0x410 kernel/sched/core.c:3290
 __schedule+0x211/0x730 kernel/sched/core.c:3420
 do_task_dead+0xa4/0xd0 kernel/sched/core.c:3478
 do_exit+0x340e/0x38d0 kernel/exit.c:924
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1320/0x1f20 kernel/signal.c:2469
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x36d/0x430 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:528
 __write_once_size include/linux/compiler.h:224 [inline]
 __list_add include/linux/list.h:66 [inline]
 list_add include/linux/list.h:79 [inline]
 account_entity_enqueue kernel/sched/fair.c:2667 [inline]
 enqueue_entity kernel/sched/fair.c:4036 [inline]
 enqueue_task_fair+0x2962/0x43a0 kernel/sched/fair.c:5219
 enqueue_task kernel/sched/core.c:774 [inline]
 activate_task kernel/sched/core.c:793 [inline]
 ttwu_activate kernel/sched/core.c:1664 [inline]
 ttwu_do_activate kernel/sched/core.c:1723 [inline]
 ttwu_queue kernel/sched/core.c:1868 [inline]
 try_to_wake_up+0x13cc/0x20a0 kernel/sched/core.c:2081
 wake_up_process+0x34/0x40 kernel/sched/core.c:2154
 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1598
 __run_hrtimer kernel/time/hrtimer.c:1349 [inline]
 __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1411
 hrtimer_interrupt+0x426/0xaf0 kernel/time/hrtimer.c:1469
 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: ----t.i@SYSC_nanosleep
Variable was created at:
 SYSC_nanosleep+0x5f/0x6a0 kernel/time/hrtimer.c:1715
 SyS_nanosleep+0x46/0x70 kernel/time/hrtimer.c:1713
==================================================================