list_add corruption. prev->next should be next (ffff8801d40427a8), but was ffff88021fcb96a0. (prev=ffff880119b98488).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:28!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 42 Comm: kworker/0:2 Not tainted 4.18.0-rc4+ #27
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue:            (null) (events)
RIP: 0010:__list_add_valid+0x43c/0x450 lib/list_debug.c:26
Code: 0c 00 00 00 00 00 00 41 c7 87 20 03 00 00 00 00 00 00 48 c7 c7 d7 f5 dc 8a 31 c0 4c 89 e6 4c 89 ea 48 8b 4d c0 e8 f4 b1 2b fd <0f> 0b 66 90 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 
RSP: 0018:ffff8801d0c8fbf8 EFLAGS: 00010046
RAX: 0000000000000075 RBX: 0000000000000000 RCX: 65c2fb3197621900
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000cbe9440
RBP: ffff8801d0c8fc60 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8675b2c0 R12: ffff8801d40427a8
R13: ffff88021fcb96a0 R14: 0000000000000000 R15: ffff8801d10de180
FS:  0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b0 CR3: 00000001bca60000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_add include/linux/list.h:60 [inline]
 list_add_tail include/linux/list.h:93 [inline]
 list_move_tail include/linux/list.h:183 [inline]
 move_linked_works kernel/workqueue.c:1040 [inline]
 process_one_work+0xafd/0x2000 kernel/workqueue.c:2079
 worker_thread+0x1136/0x2490 kernel/workqueue.c:2296
 kthread+0x473/0x4b0 kernel/kthread.c:247
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace c9eb5fc884fda007 ]---
RIP: 0010:__list_add_valid+0x43c/0x450 lib/list_debug.c:26
Code: 0c 00 00 00 00 00 00 41 c7 87 20 03 00 00 00 00 00 00 48 c7 c7 d7 f5 dc 8a 31 c0 4c 89 e6 4c 89 ea 48 8b 4d c0 e8 f4 b1 2b fd <0f> 0b 66 90 eb fe 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 
RSP: 0018:ffff8801d0c8fbf8 EFLAGS: 00010046
RAX: 0000000000000075 RBX: 0000000000000000 RCX: 65c2fb3197621900
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000cbe9440
RBP: ffff8801d0c8fc60 R08: 0000000000480020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff8675b2c0 R12: ffff8801d40427a8
R13: ffff88021fcb96a0 R14: 0000000000000000 R15: ffff8801d10de180
FS:  0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000b0 CR3: 00000001bca60000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400