------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11689 Comm: kworker/0:9 Not tainted 5.2.0-rc1+ #28 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:ffff888068b7fbd8 EFLAGS: 00010093 RAX: ffff88808c668180 RBX: 0000003600000000 RCX: ffffffff8132b172 RDX: 0000000000000000 RSI: ffffffff8132b1d3 RDI: 0000000000000006 RBP: ffff888068b7fbf0 R08: ffff88808c668180 R09: ffffed100d16ff80 R10: ffffed100d16ff7f R11: 0000000000000003 R12: 000077b600000000 R13: 0000003680000000 R14: ffff8880a8df9f00 R15: ffff8880a8df9f00 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffa79e7e00 CR3: 000000008bc26000 CR4: 00000000001406f0 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: ======================================================