[33827.216164] BUG: kernel NULL pointer dereference, address: 0000000000000050
[33827.216183] #PF: supervisor read access in kernel mode
[33827.216193] #PF: error_code(0x0000) - not-present page
[33827.216203] PGD 0 P4D 0
[33827.216211] Oops: Oops: 0000 [#1] PREEMPT SMP PTI
[33827.216240] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z370 Extreme4, BIOS P4.20 10/31/2019
[33827.216254] RIP: 0010:clone_endio+0x43/0x1f0 dm_mod
[33827.216279] Code: 4c 8b 77 e8 65 48 8b 1c 25 28 00 00 00 48 89 5c 24 08 48 89 fb 88 44 24 07 4d 85 f6 0f 84 11 01 00 00 49 8b 56 08 4c 8b 6b e0 <48> 8b 6a 50 4d 8b 65 38 3c 05 0f 84 0b 01 00 00 66 90 48 85 ed 74
All code
========
   0:	4c 8b 77 e8          	mov    -0x18(%rdi),%r14
   4:	65 48 8b 1c 25 28 00 	mov    %gs:0x28,%rbx
   b:	00 00 
   d:	48 89 5c 24 08       	mov    %rbx,0x8(%rsp)
  12:	48 89 fb             	mov    %rdi,%rbx
  15:	88 44 24 07          	mov    %al,0x7(%rsp)
  19:	4d 85 f6             	test   %r14,%r14
  1c:	0f 84 11 01 00 00    	je     0x133
  22:	49 8b 56 08          	mov    0x8(%r14),%rdx
  26:	4c 8b 6b e0          	mov    -0x20(%rbx),%r13
  2a:*	48 8b 6a 50          	mov    0x50(%rdx),%rbp		<-- trapping instruction
  2e:	4d 8b 65 38          	mov    0x38(%r13),%r12
  32:	3c 05                	cmp    $0x5,%al
  34:	0f 84 0b 01 00 00    	je     0x145
  3a:	66 90                	xchg   %ax,%ax
  3c:	48 85 ed             	test   %rbp,%rbp
  3f:	74                   	.byte 0x74

Code starting with the faulting instruction
===========================================
   0:	48 8b 6a 50          	mov    0x50(%rdx),%rbp
   4:	4d 8b 65 38          	mov    0x38(%r13),%r12
   8:	3c 05                	cmp    $0x5,%al
   a:	0f 84 0b 01 00 00    	je     0x11b
  10:	66 90                	xchg   %ax,%ax
  12:	48 85 ed             	test   %rbp,%rbp
  15:	74                   	.byte 0x74
[33827.216304] RSP: 0018:ffffb9610101bb40 EFLAGS: 00010282
[33827.216315] RAX: 0000000000000000 RBX: ffff9b15b8c5c598 RCX: 000000000015000c
[33827.216326] RDX: 0000000000000000 RSI: ffffec17e1944200 RDI: ffff9b15b8c5c598
[33827.216338] RBP: 0000000000000000 R08: ffff9b1825108c00 R09: 000000000015000c
[33827.216349] R10: 000000000015000c R11: 00000000ffffffff R12: ffff9b10da026000
[33827.216360] R13: ffff9b15b8c5c520 R14: ffff9b10ca024440 R15: ffff9b1474cb33c0
[33827.216372] FS:  0000000000000000(0000) GS:ffff9b185ee00000(0000) knlGS:0000000000000000
[33827.216385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[33827.216394] CR2: 0000000000000050 CR3: 00000001f4e22005 CR4: 00000000003706f0
[33827.216406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[33827.216417] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[33827.216429] Call Trace:
[33827.216435]  <TASK>
[33827.216442] ? __die_body.cold (??:?) 
[33827.216453] ? page_fault_oops (??:?) 
[33827.216465] ? exc_page_fault (??:?) 
[33827.216475] ? asm_exc_page_fault (??:?) 
[33827.216486] ? clone_endio+0x43/0x1f0 dm_mod
[33827.216510] clone_endio+0x120/0x1f0 dm_mod
[33827.216533] md_end_clone_io+0x42/0xa0 md_mod
[33827.216559] handle_stripe_clean_event+0x1e6/0x430 raid456
[33827.216583] handle_stripe+0x9a3/0x1c00 raid456
[33827.216606] handle_active_stripes.isra.0+0x381/0x5b0 raid456
[33827.216625] ? psi_task_switch (??:?) 
[33827.216637] raid5d+0x450/0x670 raid456
[33827.216655] ? lock_timer_base (??:?) 
[33827.216666] md_thread+0xa2/0x190 md_mod
[33827.216689] ? __pfx_autoremove_wake_function (??:?) 
[33827.216701] ? __pfx_md_thread+0x10/0x10 md_mod
[33827.216723] kthread (??:?) 
[33827.216731] ? __pfx_kthread (??:?) 
[33827.216740] ret_from_fork (??:?) 
[33827.216749] ? __pfx_kthread (??:?) 
[33827.216757] ret_from_fork_asm (??:?) 
[33827.216769]  </TASK>
[33827.216774] Modules linked in: algif_hash af_alg nft_nat nft_chain_nat nf_nat nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables rpcrdma wireguard curve25519_x86_64 rdma_cm libchacha20poly1305 iw_cm chacha_x86_64 poly1305_x86_64 libcurve25519_generic libchacha ib_cm ip6_udp_tunnel udp_tunnel ib_core nct6775 nct6775_core hwmon_vid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component dm_cache_smq dm_cache dm_persistent_data dm_bio_prison dm_bufio nls_iso8859_1 vfat fat intel_rapl_msr intel_rapl_common snd_soc_avs intel_uncore_frequency snd_soc_hda_codec intel_uncore_frequency_common snd_hda_ext_core raid456 snd_soc_core async_raid6_recov async_memcpy snd_compress intel_tcc_cooling async_pq x86_pkg_temp_thermal ac97_bus intel_powerclamp async_xor snd_pcm_dmaengine joydev async_tx coretemp snd_hda_intel xor snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi raid6_pq i915 libcrc32c snd_hda_codec snd_hda_core kvm snd_hwdep mei_pxp drm_buddy mei_hdcp ee1004 snd_pcm i2c_algo_bit rapl ttm
[33827.216828]  snd_timer intel_cstate drm_display_helper i2c_i801 mei_me i2c_smbus snd usbhid cec intel_wmi_thunderbolt pcspkr mxm_wmi e1000e intel_uncore soundcore i2c_mux mei intel_pmc_core intel_gtt intel_vsec pmt_telemetry md_mod pmt_class acpi_pad cfg80211 mac_hid rfkill nfsd auth_rpcgss nfs_acl lockd grace tcp_bbr loop fuse dm_mod sunrpc nfnetlink ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 aesni_intel nvme gf128mul crypto_simd nvme_core cryptd xhci_pci xhci_pci_renesas video wmi usbip_host usbip_core pkcs8_key_parser sg crypto_user
[33827.217047] CR2: 0000000000000050
[33827.217054] ---[ end trace 0000000000000000 ]---
[33827.217066] RIP: 0010:clone_endio+0x43/0x1f0 dm_mod
[33827.217086] Code: 4c 8b 77 e8 65 48 8b 1c 25 28 00 00 00 48 89 5c 24 08 48 89 fb 88 44 24 07 4d 85 f6 0f 84 11 01 00 00 49 8b 56 08 4c 8b 6b e0 <48> 8b 6a 50 4d 8b 65 38 3c 05 0f 84 0b 01 00 00 66 90 48 85 ed 74
All code
========
   0:	4c 8b 77 e8          	mov    -0x18(%rdi),%r14
   4:	65 48 8b 1c 25 28 00 	mov    %gs:0x28,%rbx
   b:	00 00 
   d:	48 89 5c 24 08       	mov    %rbx,0x8(%rsp)
  12:	48 89 fb             	mov    %rdi,%rbx
  15:	88 44 24 07          	mov    %al,0x7(%rsp)
  19:	4d 85 f6             	test   %r14,%r14
  1c:	0f 84 11 01 00 00    	je     0x133
  22:	49 8b 56 08          	mov    0x8(%r14),%rdx
  26:	4c 8b 6b e0          	mov    -0x20(%rbx),%r13
  2a:*	48 8b 6a 50          	mov    0x50(%rdx),%rbp		<-- trapping instruction
  2e:	4d 8b 65 38          	mov    0x38(%r13),%r12
  32:	3c 05                	cmp    $0x5,%al
  34:	0f 84 0b 01 00 00    	je     0x145
  3a:	66 90                	xchg   %ax,%ax
  3c:	48 85 ed             	test   %rbp,%rbp
  3f:	74                   	.byte 0x74

Code starting with the faulting instruction
===========================================
   0:	48 8b 6a 50          	mov    0x50(%rdx),%rbp
   4:	4d 8b 65 38          	mov    0x38(%r13),%r12
   8:	3c 05                	cmp    $0x5,%al
   a:	0f 84 0b 01 00 00    	je     0x11b
  10:	66 90                	xchg   %ax,%ax
  12:	48 85 ed             	test   %rbp,%rbp
  15:	74                   	.byte 0x74
[33827.217126] RSP: 0018:ffffb9610101bb40 EFLAGS: 00010282
[33827.217137] RAX: 0000000000000000 RBX: ffff9b15b8c5c598 RCX: 000000000015000c
[33827.217150] RDX: 0000000000000000 RSI: ffffec17e1944200 RDI: ffff9b15b8c5c598
[33827.217163] RBP: 0000000000000000 R08: ffff9b1825108c00 R09: 000000000015000c
[33827.217175] R10: 000000000015000c R11: 00000000ffffffff R12: ffff9b10da026000
[33827.217188] R13: ffff9b15b8c5c520 R14: ffff9b10ca024440 R15: ffff9b1474cb33c0
[33827.217201] FS:  0000000000000000(0000) GS:ffff9b185ee00000(0000) knlGS:0000000000000000
[33827.217215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[33827.218108] CR2: 0000000000000050 CR3: 00000001f4e22005 CR4: 00000000003706f0
[33827.219002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[33827.219896] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[33827.220786] note: md127_raid6[793] exited with irqs disabled
[33827.221720] ------------[ cut here ]------------
[33827.222606] WARNING: CPU: 4 PID: 793 at kernel/exit.c:829 do_exit (??:?) 
[33827.223533] Modules linked in: algif_hash af_alg nft_nat nft_chain_nat nf_nat nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables rpcrdma wireguard curve25519_x86_64 rdma_cm libchacha20poly1305 iw_cm chacha_x86_64 poly1305_x86_64 libcurve25519_generic libchacha ib_cm ip6_udp_tunnel udp_tunnel ib_core nct6775 nct6775_core hwmon_vid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component dm_cache_smq dm_cache dm_persistent_data dm_bio_prison dm_bufio nls_iso8859_1 vfat fat intel_rapl_msr intel_rapl_common snd_soc_avs intel_uncore_frequency snd_soc_hda_codec intel_uncore_frequency_common snd_hda_ext_core raid456 snd_soc_core async_raid6_recov async_memcpy snd_compress intel_tcc_cooling async_pq x86_pkg_temp_thermal ac97_bus intel_powerclamp async_xor snd_pcm_dmaengine joydev async_tx coretemp snd_hda_intel xor snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi raid6_pq i915 libcrc32c snd_hda_codec snd_hda_core kvm snd_hwdep mei_pxp drm_buddy mei_hdcp ee1004 snd_pcm i2c_algo_bit rapl ttm
[33827.223586]  snd_timer intel_cstate drm_display_helper i2c_i801 mei_me i2c_smbus snd usbhid cec intel_wmi_thunderbolt pcspkr mxm_wmi e1000e intel_uncore soundcore i2c_mux mei intel_pmc_core intel_gtt intel_vsec pmt_telemetry md_mod pmt_class acpi_pad cfg80211 mac_hid rfkill nfsd auth_rpcgss nfs_acl lockd grace tcp_bbr loop fuse dm_mod sunrpc nfnetlink ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 aesni_intel nvme gf128mul crypto_simd nvme_core cryptd xhci_pci xhci_pci_renesas video wmi usbip_host usbip_core pkcs8_key_parser sg crypto_user
[33827.232369] Tainted: [D]=DIE
[33827.233364] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z370 Extreme4, BIOS P4.20 10/31/2019
[33827.234379] RIP: 0010:do_exit (??:?) 
[33827.235390] Code: f6 e8 fc e2 ff ff e9 9b fd ff ff 4c 89 e6 bf 05 06 00 00 e8 4a 2a 01 00 e9 52 f8 ff ff 48 89 df e8 7d 82 12 00 e9 55 f9 ff ff <0f> 0b e9 ac f7 ff ff 0f 0b e9 69 f7 ff ff 4c 89 e6 48 89 df e8 ff
All code
========
   0:	f6 e8                	imul   %al
   2:	fc                   	cld
   3:	e2 ff                	loop   0x4
   5:	ff                   	ljmp   (bad)
   6:	e9 9b fd ff ff       	jmp    0xfffffffffffffda6
   b:	4c 89 e6             	mov    %r12,%rsi
   e:	bf 05 06 00 00       	mov    $0x605,%edi
  13:	e8 4a 2a 01 00       	call   0x12a62
  18:	e9 52 f8 ff ff       	jmp    0xfffffffffffff86f
  1d:	48 89 df             	mov    %rbx,%rdi
  20:	e8 7d 82 12 00       	call   0x1282a2
  25:	e9 55 f9 ff ff       	jmp    0xfffffffffffff97f
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	e9 ac f7 ff ff       	jmp    0xfffffffffffff7dd
  31:	0f 0b                	ud2
  33:	e9 69 f7 ff ff       	jmp    0xfffffffffffff7a1
  38:	4c 89 e6             	mov    %r12,%rsi
  3b:	48 89 df             	mov    %rbx,%rdi
  3e:	e8                   	.byte 0xe8
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	e9 ac f7 ff ff       	jmp    0xfffffffffffff7b3
   7:	0f 0b                	ud2
   9:	e9 69 f7 ff ff       	jmp    0xfffffffffffff777
   e:	4c 89 e6             	mov    %r12,%rsi
  11:	48 89 df             	mov    %rbx,%rdi
  14:	e8                   	.byte 0xe8
  15:	ff                   	.byte 0xff
[33827.236453] RSP: 0018:ffffb9610101bed8 EFLAGS: 00010286
[33827.237533] RAX: 0000000400000000 RBX: ffff9b10cec52140 RCX: 0000000000000000
[33827.238614] RDX: 0000000000000001 RSI: 0000000000002710 RDI: ffff9b10c1546300
[33827.239695] RBP: ffff9b10c3d9e780 R08: 0000000000000000 R09: ffffb9610101bdc8
[33827.240777] R10: ffffffffb50b3fa8 R11: 0000000000000003 R12: 0000000000000009
[33827.241866] R13: ffff9b10c1546300 R14: 0000000000000000 R15: 0000000000000000
[33827.242845] FS:  0000000000000000(0000) GS:ffff9b185ee00000(0000) knlGS:0000000000000000
[33827.243804] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[33827.244770] CR2: 0000000000000050 CR3: 00000001f4e22005 CR4: 00000000003706f0
[33827.245737] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[33827.246704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[33827.247626] Call Trace:
[33827.248488]  <TASK>
[33827.249334] ? do_exit (??:?) 
[33827.250163] ? __warn.cold (??:?) 
[33827.251005] ? do_exit (??:?) 
[33827.251841] ? report_bug (??:?) 
[33827.252622] ? handle_bug (??:?) 
[33827.253370] ? exc_invalid_op (??:?) 
[33827.254101] ? asm_exc_invalid_op (??:?) 
[33827.254844] ? do_exit (??:?) 
[33827.255587] ? do_exit (??:?) 
[33827.256320] make_task_dead (??:?) 
[33827.257039] rewind_stack_and_make_dead (??:?) 
[33827.257724] RIP: 0000:0x0
[33827.258414] Code: Unable to access opcode bytes at 0xffffffffffffffd6.

Code starting with the faulting instruction
===========================================
[33827.259091] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[33827.259760] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[33827.260428] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[33827.261082] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[33827.261725] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[33827.262351] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[33827.262958]  </TASK>
[33827.263559] ---[ end trace 0000000000000000 ]---