list_add corruption. next->prev should be prev (ffff8881dad2d818), but was 0000000000000000. (next=ffff8881d9b2c4f0).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:25!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 0 Comm: ksoftirqd/1 Not tainted 4.20.0-rc6-next-20181217+ #172
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_add_valid.cold.2+0xf/0x2a lib/list_debug.c:23
Code: 00 81 88 e8 51 bc d1 fd 0f 0b 48 89 de 48 c7 c7 60 00 81 88 e8 40 bc d1 fd 0f 0b 48 89 d9 48 c7 c7 20 01 81 88 e8 2f bc d1 fd <0f> 0b 48 89 f1 48 c7 c7 a0 01 81 88 48 89 de e8 1b bc d1 fd 0f 0b
RSP: 0018:ffff8881dad07218 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff8881d9b2c4f0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8166b045 RDI: 0000000000000005
RBP: ffff8881dad07230 R08: ffff8881d9b2c440 R09: ffffed103b5a5020
R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d95cc230
R13: 1ffff1103b5a0e4b R14: ffff8881dad072b8 R15: ffff8881d95cc230
FS:  0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e0007f CR3: 00000001b334d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __list_add include/linux/list.h:60 [inline]
 list_add include/linux/list.h:79 [inline]
 account_entity_enqueue+0x3a3/0x660 kernel/sched/fair.c:2679
 enqueue_entity+0x2af/0x20a0 kernel/sched/fair.c:3903
 enqueue_task_fair+0x288/0x11f0 kernel/sched/fair.c:5134
 enqueue_task kernel/sched/core.c:730 [inline]
 activate_task+0x136/0x430 kernel/sched/core.c:751
 ttwu_activate kernel/sched/core.c:1643 [inline]
 ttwu_do_activate+0xd5/0x1f0 kernel/sched/core.c:1702
 ttwu_queue kernel/sched/core.c:1847 [inline]
 try_to_wake_up+0x9b3/0x1440 kernel/sched/core.c:2057
 wake_up_process+0x10/0x20 kernel/sched/core.c:2129
 hrtimer_wakeup+0x48/0x60 kernel/time/hrtimer.c:1637
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
Modules linked in:
---[ end trace 54b3a4550a21c9f1 ]---
RIP: 0010:__list_add_valid.cold.2+0xf/0x2a lib/list_debug.c:23
Code: 00 81 88 e8 51 bc d1 fd 0f 0b 48 89 de 48 c7 c7 60 00 81 88 e8 40 bc d1 fd 0f 0b 48 89 d9 48 c7 c7 20 01 81 88 e8 2f bc d1 fd <0f> 0b 48 89 f1 48 c7 c7 a0 01 81 88 48 89 de e8 1b bc d1 fd 0f 0b
RSP: 0018:ffff8881dad07218 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff8881d9b2c4f0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8166b045 RDI: 0000000000000005
RBP: ffff8881dad07230 R08: ffff8881d9b2c440 R09: ffffed103b5a5020
R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d95cc230
R13: 1ffff1103b5a0e4b R14: ffff8881dad072b8 R15: ffff8881d95cc230
FS:  0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e0007f CR3: 00000001b334d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400