------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1011!
invalid opcode: 0000 [#1] SMP PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 803 Comm: kcompactd0 Not tainted 4.17.0+ #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_copy_page_meta+0x164/0x180 mm/kmsan/kmsan.c:1016
RSP: 0018:ffff8801d800f750 EFLAGS: 00010046
RAX: 0000000000000001 RBX: ffffea000cbf42a0 RCX: 0000000000000000
RDX: ffff8801d856f098 RSI: ffffea0006322260 RDI: 0000000000000000
RBP: ffff8801d800f790 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff81b137d0 R12: 0000000000000246
R13: ffff88010303a000 R14: ffffea00061215c0 R15: ffff8801d7d7d7c0
FS:  0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d703e9000 CR3: 000000000ac30000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 copy_highpage include/linux/highmem.h:253 [inline]
 migrate_page_copy+0x2bb/0x10b0 mm/migrate.c:734
 migrate_page mm/migrate.c:764 [inline]
 move_to_new_page+0x9a6/0x10e0 mm/migrate.c:929
 __unmap_and_move mm/migrate.c:1100 [inline]
 unmap_and_move mm/migrate.c:1177 [inline]
 migrate_pages+0x26d4/0x4110 mm/migrate.c:1398
 compact_zone+0x1e93/0x3a50 mm/compaction.c:1613
 kcompactd_do_work mm/compaction.c:1985 [inline]
 kcompactd+0xfd0/0x1de0 mm/compaction.c:2075
 kthread+0x4db/0x6c0 kernel/kthread.c:241
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:412
Code: 08 41 83 87 cc 08 00 00 ff 75 2c e8 07 6a 4a ff 48 8b 45 c8 48 89 45 c0 ff 75 c0 9d 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 66 90 66 2e 0f 
RIP: kmsan_copy_page_meta+0x164/0x180 mm/kmsan/kmsan.c:1016 RSP: ffff8801d800f750
---[ end trace 10d78b517743f21d ]---