------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 22956 Comm: kworker/1:12 Not tainted 5.2.0-rc1+ #7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events cache_reap
RIP: 0010:__phys_addr+0xb3/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 56 f4 3d 00 48 85 db 75 0f e8 ac f2 3d 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 9d f2 3d 00 <0f> 0b e8 96 f2 3d 00 48 c7 c0 10 50 a7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88808b82fbd8 EFLAGS: 00010093
RAX: ffff888063a56500 RBX: 0000000000000000 RCX: ffffffff8132b172
RDX: 0000000000000000 RSI: ffffffff8132b1d3 RDI: 0000000000000006
RBP: ffff88808b82fbf0 R08: ffff888063a56500 R09: ffffed1011705f80
R10: ffffed1011705f7f R11: 0000000000000003 R12: 0000778000000000
R13: 0000000080000000 R14: ffff8880a65cd600 R15: ffff8880a65cd600
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070f934 CR3: 0000000092211000 CR4: 00000000001406e0
Call Trace:
 virt_to_head_page include/linux/mm.h:718 [inline]
 free_block+0xa8/0x250 mm/slab.c:3349
 drain_array_locked+0x36/0x90 mm/slab.c:2142
 drain_array+0x8c/0xb0 mm/slab.c:3960
 cache_reap+0xf4/0x280 mm/slab.c:4001
 process_one_work+0x989/0x1790 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x354/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:

======================================================