Backtrace

BUG: unable to handle page fault for address: 00000000000031e5
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8000000102b02067 P4D 8000000102b02067 PUD 0 
Oops: 0000 [#1] SMP PTI
CPU: 2 PID: 9684 Comm: pool-10-thread- Tainted: G         C        5.11.18-300.fc34.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. H97M-DS3P/H97M-DS3P, BIOS F6 09/20/2015
RIP: 0010:free_extent_map+0xb/0x90
Code: 00 00 48 89 90 80 00 00 00 48 89 90 88 00 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 48 85 ff 74 79 55 <8b> 47 78 48 89 fd 85 c0 74 6f 48 8d 7d 78 b8 ff ff ff ff f0 0f c1
RSP: 0018:ffffaca90aa3bba8 EFLAGS: 00010202
RAX: 000000000000316d RBX: 0000000000001000 RCX: 000000000013b394
RDX: 0000000000000000 RSI: ffff9f340a41dbd0 RDI: 000000000000316d
RBP: 000000000003ab5a R08: 000000008e4a8ce5 R09: 0000000000000000
R10: ffff9f3572127b40 R11: 000000003a694000 R12: ffff9f343070a7a8
R13: 00000000010ac000 R14: ffff9f350655d800 R15: ffff9f340a41dbd0
FS:  00007f0b1c9d0640(0000) GS:ffff9f3626b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000031e5 CR3: 00000002134ce001 CR4: 00000000001706e0
Call Trace:
 btrfs_get_extent+0x508/0x7c0
 ? btrfs_get_extent+0x3f5/0x7c0
 ? btrfs_set_extent_delalloc+0x78/0x190
 ? btrfs_dirty_pages+0xa8/0x120
 ? btrfs_buffered_write+0x486/0x7b0
 ? btrfs_file_write_iter+0x135/0x400
 ? new_sync_write+0x108/0x180
 ? vfs_write+0x1b8/0x270
 ? ksys_write+0x4f/0xc0
 ? do_syscall_64+0x33/0x40
 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
Modules linked in: uinput exfat snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc squashfs snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi loop coretemp snd_hda_intel snd_intel_dspcfg kvm_intel snd_soc_rt5640 soundwire_intel soundwire_generic_allocation soundwire_cadence snd_soc_rl6231 snd_soc_core kvm snd_hda_codec snd_compress snd_pcm_dmaengine snd_hda_core irqbypass ac97_bus rapl
 r8188eu(C) lib80211 uas usb_storage cfg80211 snd_hwdep snd_seq iTCO_wdt rfkill snd_seq_device intel_pmc_bxt mei_wdt iTCO_vendor_support ppdev intel_cstate joydev intel_uncore mei_hdcp at24 snd_pcm snd_timer snd soundcore pcspkr i2c_i801 parport_pc mei_me mei parport i2c_smbus lpc_ich acpi_pad zram ip_tables i915 nouveau mxm_wmi wmi drm_ttm_helper ttm i2c_algo_bit crct10dif_pclmul drm_kms_helper crc32_pclmul e1000e crc32c_intel cec ghash_clmulni_intel drm video fuse
CR2: 00000000000031e5