anon 
flags: 0x1fffc000009000d(locked|uptodate|dirty|head|swapbacked)
raw: 01fffc000009000d dead000000000100 dead000000000200 ffff88809572ec09
raw: 0000000000020000 0000000000000000 0000020000000000 ffff88808bae8c80
page dumped because: VM_BUG_ON_PAGE(compound_mapcount(head))
page->mem_cgroup:ffff88808bae8c80
------------[ cut here ]------------
kernel BUG at mm/huge_memory.c:2716!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1553 Comm: kswapd0 Not tainted 5.1.0-rc7+ #95
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:split_huge_page_to_list+0x20cc/0x2de0 mm/huge_memory.c:2716
Code: e8 a9 32 c5 ff 48 c7 c6 40 2d 74 87 4c 89 e7 e8 1a a2 ee ff 0f 0b e8 93 32 c5 ff 48 c7 c6 80 2d 74 87 4c 89 e7 e8 04 a2 ee ff <0f> 0b e8 7d 32 c5 ff 4d 8d 77 ff e9 e6 e7 ff ff 41 be 02 00 00 00
RSP: 0018:ffff8880a5c07630 EFLAGS: 00010293
RAX: ffff8880a5c12440 RBX: ffffea0000b30080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff819a0cb2 RDI: ffffed1014b80eaa
RBP: ffff8880a5c077a0 R08: 0000000000000021 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: ffffea0000b30000
R13: 01fffc000009000d R14: 00000000fffffffe R15: ffffea0000b30054
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000073c000 CR3: 00000000a6939000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 split_huge_page include/linux/huge_mm.h:148 [inline]
 deferred_split_scan+0x64b/0xa60 mm/huge_memory.c:2853
 do_shrink_slab+0x400/0xa80 mm/vmscan.c:551
 shrink_slab mm/vmscan.c:700 [inline]
 shrink_slab+0x4be/0x5e0 mm/vmscan.c:680
 shrink_node+0x552/0x1570 mm/vmscan.c:2717
 kswapd_shrink_node mm/vmscan.c:3471 [inline]
 balance_pgdat+0x56c/0xe80 mm/vmscan.c:3629
 kswapd+0x5f4/0xfd0 mm/vmscan.c:3884
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 5289420a802d088a ]---
RIP: 0010:split_huge_page_to_list+0x20cc/0x2de0 mm/huge_memory.c:2716
Code: e8 a9 32 c5 ff 48 c7 c6 40 2d 74 87 4c 89 e7 e8 1a a2 ee ff 0f 0b e8 93 32 c5 ff 48 c7 c6 80 2d 74 87 4c 89 e7 e8 04 a2 ee ff <0f> 0b e8 7d 32 c5 ff 4d 8d 77 ff e9 e6 e7 ff ff 41 be 02 00 00 00
RSP: 0018:ffff8880a5c07630 EFLAGS: 00010293
RAX: ffff8880a5c12440 RBX: ffffea0000b30080 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff819a0cb2 RDI: ffffed1014b80eaa
RBP: ffff8880a5c077a0 R08: 0000000000000021 R09: ffffed1015d25011
R10: ffffed1015d25010 R11: ffff8880ae928087 R12: ffffea0000b30000
R13: 01fffc000009000d R14: 00000000fffffffe R15: ffffea0000b30054
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f358dadbec8 CR3: 000000007a5dc000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400