Backtrace

BUG: unable to handle page fault for address: 0000000800000088
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 342627 Comm: umount Tainted: G           OE     5.9.16-100.fc32.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. H97-D3H/H97-D3H-CF, BIOS F5 06/26/2014
RIP: 0010:xas_find+0x9b/0x1c0
Code: d6 48 c7 c6 c0 ff ff ff 49 d3 e2 49 01 c2 4c 89 57 08 4d 39 d1 72 79 0f b6 47 12 3c 40 0f 84 82 00 00 00 0f b6 c8 48 83 c1 04 <4c> 8b 44 ca 08 4c 89 c1 83 e1 03 48 83 f9 02 0f 94 c1 49 81 f8 00
RSP: 0018:ffffa8a100317b68 EFLAGS: 00010212
RAX: 000000000000000c RBX: ffffa8a100317c80 RCX: 0000000000000010
RDX: 0000000800000000 RSI: ffffffffffffffc0 RDI: ffffa8a100317b70
RBP: 0000000000000000 R08: 000000000000003f R09: ffffffffffffffff
R10: 0000000000000040 R11: 0000000000000000 R12: 000000000000000f
R13: ffffa8a100317c00 R14: 0000000000000003 R15: ffff92629e6b7140
FS:  00007f9d85612c80(0000) GS:ffff9266bea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000800000088 CR3: 000000078ba36002 CR4: 00000000001706f0
Call Trace:
 find_get_entries+0x203/0x320
 pagevec_lookup_entries+0x1a/0x30
 truncate_inode_pages_range+0xba/0x810
 ? ext4_discard_preallocations+0x69/0x410
 ? kmem_cache_free+0x3d8/0x400
 ? ext4_clear_inode+0x6d/0x90
 ? __inode_wait_for_writeback+0x6e/0xc0
 ext4_evict_inode+0x40/0x510
 evict+0xd1/0x1a0
 dispose_list+0x48/0x60
 evict_inodes+0x17f/0x190
 generic_shutdown_super+0x37/0x100
 kill_block_super+0x21/0x50
 deactivate_locked_super+0x36/0xa0
 cleanup_mnt+0x12d/0x190
 task_work_run+0x65/0xa0
 exit_to_user_mode_prepare+0x142/0x160
 syscall_exit_to_user_mode+0x31/0x1b0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f9d8586494b
Code: 15 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1d 15 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc136650e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f9d8598c204 RCX: 00007f9d8586494b
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000557752110ee0
RBP: 000055775210a460 R08: 0000000000000000 R09: 00007f9d85926a40
R10: 00005577521109d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000557752110ee0 R14: 000055775210a570 R15: 000055775210a690
Modules linked in: usblp snd_seq_dummy snd_hrtimer uas usb_storage md4 nls_utf8 cifs dns_resolver fscache libdes rfcomm tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink cmac bnep sunrpc squashfs loop btusb btrtl iwlmvm snd_hda_codec_realtek snd_hda_codec_generic mac80211 ledtrig_audio btbcm btintel libarc4 intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi bluetooth snd_hda_intel x86_pkg_temp_thermal intel_powerclamp ecdh_generic ecc coretemp iwlwifi snd_intel_dspcfg joydev snd_hda_codec snd_hda_core kvm_intel snd_soc_rt5640 snd_soc_rl6231 kvm snd_soc_core snd_compress snd_hwdep ac97_bus snd_pcm_dmaengine snd_seq snd_seq_device snd_pcm irqbypass snd_timer iTCO_wdt mei_wdt rapl intel_pmc_bxt iTCO_vendor_support mei_hdcp at24 cfg80211 intel_cstate pcspkr rfkill snd intel_uncore i2c_i801 i2c_smbus soundcore mei_me mei lpc_ich acpi_pad binfmt_misc i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul
 crc32_pclmul crc32c_intel cec drm ghash_clmulni_intel e1000e video fuse [last unloaded: ip_tables]
CR2: 0000000800000088