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kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1375 Comm: kswapd0 Not tainted 4.19.0-rc5+ #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 44 68 46 00 48 85 db 75 0f e8 0a 67 46 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 fb 66 46 00 <0f> 0b e8 f4 66 46 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc
RSP: 0000:ffff8801d4feca38 EFLAGS: 00010293
RAX: ffff8801d4f7e340 RBX: 000000008000000a RCX: ffffffff81387cc1
RDX: 0000000000000000 RSI: ffffffff81387d25 RDI: 0000000000000006
RBP: ffff8801d4feca50 R08: ffff8801d4f7e340 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d4f7e340 R12: 000078000000000a
R13: 0000000000000000 R14: 000000000000000a R15: ffffffff89523ac0
FS:  0000000000000000(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc4c0552300 CR3: 0000000193f15000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:658 [inline]
 qlink_to_cache mm/kasan/quarantine.c:127 [inline]
 qlist_free_all+0x107/0x140 mm/kasan/quarantine.c:163
 quarantine_reduce+0x163/0x1a0 mm/kasan/quarantine.c:259
 kasan_kmalloc+0x9b/0xe0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:444 [inline]
 slab_alloc mm/slab.c:3392 [inline]
 kmem_cache_alloc+0x11b/0x730 mm/slab.c:3552
 kmem_cache_zalloc include/linux/slab.h:697 [inline]
 ext4_init_io_end+0x96/0x220 fs/ext4/page-io.c:253
 ext4_writepage+0x14f3/0x2350 fs/ext4/inode.c:2168
 pageout mm/vmscan.c:852 [inline]
 shrink_page_list+0x59a5/0xc510 mm/vmscan.c:1370
 shrink_inactive_list+0x77b/0x1c60 mm/vmscan.c:1954
 shrink_list mm/vmscan.c:2265 [inline]
 shrink_node_memcg+0x78b/0x18e0 mm/vmscan.c:2528
 shrink_node+0x3bc/0x16b0 mm/vmscan.c:2743
 kswapd_shrink_node mm/vmscan.c:3468 [inline]
 balance_pgdat+0x7ca/0x1000 mm/vmscan.c:3578
 kswapd+0x857/0x12d0 mm/vmscan.c:3800
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
Modules linked in:
---[ end trace 10f3f915b4212b3f ]---
RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27
Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 44 68 46 00 48 85 db 75 0f e8 0a 67 46 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 fb 66 46 00 <0f> 0b e8 f4 66 46 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc
RSP: 0000:ffff8801d4feca38 EFLAGS: 00010293
RAX: ffff8801d4f7e340 RBX: 000000008000000a RCX: ffffffff81387cc1
RDX: 0000000000000000 RSI: ffffffff81387d25 RDI: 0000000000000006
RBP: ffff8801d4feca50 R08: ffff8801d4f7e340 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d4f7e340 R12: 000078000000000a
R13: 0000000000000000 R14: 000000000000000a R15: ffffffff89523ac0
FS:  0000000000000000(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000042f260 CR3: 00000001cb275000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400