Backtrace

BUG: unable to handle page fault for address: 000000193320a508
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 5 PID: 61821 Comm: lvm Tainted: P        W  OE     5.12.8-300.fc34.x86_64 #1
Hardware name: System manufacturer System Product Name/P8H61-M LE/BR, BIOS 4307 05/13/2013
RIP: 0010:blkdev_show+0x4e/0x90
Code: af c2 48 c1 e8 27 89 c2 c1 e2 08 29 c2 89 e8 29 d0 48 98 48 8b 1c c5 80 9b 6f be 48 85 db 75 0a eb 2f 48 8b 1b 48 85 db 74 27 <48> 63 43 08 48 89 c2 48 39 e8 75 ec 48 8d 4b 0c 48 c7 c6 bd 66 3d
RSP: 0018:ffffb09f03c6bdb8 EFLAGS: 00010206
RAX: ffffffff803613bf RBX: 000000193320a500 RCX: 0000000000000000
RDX: ffffffff803613bf RSI: 0000000000000047 RDI: ffffffffbdc4fba0
RBP: 0000000000000047 R08: ffffa0d2d6c85000 R09: 000000000000023e
R10: 0000000000000246 R11: ffffa0d2d6c8423a R12: ffffa0d2c13492d0
R13: ffffb09f03c6be70 R14: ffffa0d2c13492f8 R15: ffffa0d2c13492f8
FS:  00007fab1d60d140(0000) GS:ffffa0d3ded40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000193320a508 CR3: 000000021c974003 CR4: 00000000000606e0
Call Trace:
 devinfo_show+0x39/0x80
 seq_read_iter+0x2d5/0x4c0
 proc_reg_read_iter+0x4c/0x80
 new_sync_read+0x105/0x180
 vfs_read+0x147/0x1a0
 ksys_read+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fab1daca2e2
Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea 2e 0a 00 e8 95 e9 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
RSP: 002b:00007ffcea5631d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055788edfd760 RCX: 00007fab1daca2e2
RDX: 0000000000000400 RSI: 000055788edf04b0 RDI: 0000000000000003
RBP: 00007fab1db9e300 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000246 R12: 000055788edfd760
R13: 0000000000000d68 R14: 00007fab1db9d700 R15: 0000000000000d68
Modules linked in: snd_seq_dummy snd_hrtimer nvidia_drm(POE) nvidia_modeset(POE) nvidia_uvm(POE) nvidia(POE) drm_kms_helper cec nf_conntrack_tftp bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast ccm nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink sunrpc snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel rt2800usb snd_intel_dspcfg rt2x00usb snd_intel_sdw_acpi rt2800lib snd_hda_codec rt2x00lib snd_hda_core mac80211 snd_hwdep snd_seq intel_rapl_msr snd_seq_device intel_rapl_common snd_pcm cfg80211 snd_timer x86_pkg_temp_thermal intel_powerclamp snd libarc4 iTCO_wdt eeepc_wmi soundcore mei_hdcp ppdev joydev intel_pmc_bxt iTCO_vendor_support at24 coretemp parport_pc asus_wmi kvm_intel sparse_keymap parport rfkill mei_me kvm mei i2c_i801 lpc_ich i2c_smbus irqbypass pcspkr rapl intel_cstate wmi_bmof intel_uncore drm zram uas usb_storage crct10dif_pclmul crc32_pclmul crc32c_intel
 ghash_clmulni_intel ata_generic r8169 serio_raw pata_acpi wmi video fuse [last unloaded: ip_tables]
CR2: 000000193320a508