Backtrace

BUG: unable to handle page fault for address: fffff4a700000011
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 52 Comm: kswapd0 Tainted: G        W         5.16.20-200.fc35.x86_64 #1
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
RIP: 0010:rb_next+0x14/0x50
Code: 89 40 10 e9 c3 fe ff ff 48 c7 07 01 00 00 00 c3 66 0f 1f 44 00 00 48 8b 17 48 39 d7 74 35 48 8b 47 08 48 85 c0 74 1c 49 89 c0 <48> 8b 40 10 48 85 c0 75 f4 4c 89 c0 c3 48 3b 78 08 75 f6 48 8b 10
RSP: 0018:ffffb62cc02dba98 EFLAGS: 00010282
RAX: fffff4a700000001 RBX: 0000000000000001 RCX: fffff4a700002000
RDX: 0000000000000001 RSI: ffff92e181408000 RDI: ffff92e181408010
RBP: ffff92e181408000 R08: fffff4a700000001 R09: 0000000000000000
R10: fffff4a700001fff R11: 0000000000000000 R12: ffff92e1b5505588
R13: ffff92e181408010 R14: 0000000000000000 R15: ffff92e35b3a4910
FS:  0000000000000000(0000) GS:ffff92e3d0080000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff4a700000011 CR3: 000000015d22c003 CR4: 00000000000706e0
Call Trace:
 <TASK>
 clear_state_bit+0x116/0x1a0
 __clear_extent_bit+0x219/0x4c0
 clear_extent_bit+0x15/0x20
 btrfs_inode_clear_file_extent_range+0x45/0x50
 btrfs_destroy_inode+0x12b/0x210
 destroy_inode+0x3b/0x70
 dispose_list+0x48/0x60
 prune_icache_sb+0x44/0x50
 super_cache_scan+0x161/0x1f0
 do_shrink_slab+0x139/0x2e0
 shrink_slab+0x162/0x280
 shrink_node+0x2b2/0x6f0
 balance_pgdat+0x342/0x710
 kswapd+0x1ed/0x390
 ? do_wait_intr_irq+0xa0/0xa0
 ? balance_pgdat+0x710/0x710
 kthread+0x16b/0x190
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in: uinput snd_seq_dummy snd_hrtimer nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink qrtr sunrpc squashfs loop intel_rapl_msr intel_rapl_common rapl snd_intel8x0 snd_ac97_codec ac97_bus snd_seq joydev snd_seq_device snd_pcm pcspkr snd_timer snd soundcore vboxguest i2c_piix4 zram ip_tables vmwgfx drm_kms_helper cec ttm drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel serio_raw e1000 video ata_generic pata_acpi ipmi_devintf ipmi_msghandler fuse
CR2: fffff4a700000011