Comment # 14
on bug 1219983
from Alan Lima
[35555.910532] [ C8] BUG: kernel NULL pointer dereference, address:
0000000000000000
[35555.910539] [ C8] #PF: supervisor read access in kernel mode
[35555.910541] [ C8] #PF: error_code(0x0000) - not-present page
[35555.910543] [ C8] PGD 11fb64067 P4D 11fb64067 PUD 1041d0067 PMD 0
[35555.910547] [ C8] Oops: 0000 [#1] PREEMPT SMP NOPTI
[35555.910550] [ C8] CPU: 8 PID: 4058 Comm: UnityGfxDeviceW Kdump: loaded
Tainted: G OE 6.9.1-1-default #1 openSUSE Tumbleweed
c5471a56f12c40709b95530f47f6c0b39e75f136
[35555.910554] [ C8] Hardware name: Gigabyte Technology Co., Ltd. X570S
AORUS PRO AX/X570S AORUS PRO AX, BIOS F6c 09/20/2023
[35555.910556] [ C8] RIP: 0010:dcn10_set_drr+0xa0/0xf0 [amdgpu]
[35555.910798] [ C8] Code: 74 e0 48 8b 80 28 01 00 00 48 85 c0 74 08 48 89
e6 e8 54 64 10 c9 45 85 e4 74 c7 45 85 ed 74 c2 48 8b 03 48 8b b8 f8 00 00 00
<48> 8b 07 48 8b 80 40 01 00 00 48 85 c0 74 a9 48 83 c3 08 ba 02 00
[35555.910800] [ C8] RSP: 0000:ffffba29d0047ce0 EFLAGS: 00210002
[35555.910802] [ C8] RAX: ffffa0ee692002d8 RBX: ffffba29d0047d30 RCX:
0000000000000000
[35555.910804] [ C8] RDX: 0000000080010015 RSI: ffffa0ecf1b64e00 RDI:
0000000000000000
[35555.910806] [ C8] RBP: ffffba29d0047d20 R08: 0000000080000000 R09:
ffffba29d0047ba0
[35555.910807] [ C8] R10: 0000000000000008 R11: 0000000000000000 R12:
000000000000045f
[35555.910808] [ C8] R13: 0000000000000831 R14: ffffba29d0047d38 R15:
ffffa0f036239480
[35555.910810] [ C8] FS: 00007f73f1c006c0(0000) GS:ffffa0f3fee00000(0000)
knlGS:0000000000000000
[35555.910812] [ C8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[35555.910814] [ C8] CR2: 0000000000000000 CR3: 0000000105540000 CR4:
0000000000750ef0
[35555.910815] [ C8] PKRU: 55555554
[35555.910817] [ C8] Call Trace:
[35555.910820] [ C8] <TASK>
[35555.910823] [ C8] ? __die_body.cold+0x14/0x24
[35555.910828] [ C8] ? page_fault_oops+0x134/0x2a0
[35555.910834] [ C8] ? exc_page_fault+0x73/0x170
[35555.910837] [ C8] ? asm_exc_page_fault+0x26/0x30
[35555.910843] [ C8] ? dcn10_set_drr+0xa0/0xf0 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.911066] [ C8] dc_stream_adjust_vmin_vmax+0xd3/0x110 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.911261] [ C8] dm_crtc_high_irq+0x231/0x2b0 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.911495] [ C8] amdgpu_dm_irq_handler+0x85/0x1d0 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.911711] [ C8] amdgpu_irq_dispatch+0xbb/0x200 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.911892] [ C8] amdgpu_ih_process+0x83/0x100 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.912075] [ C8] amdgpu_irq_handler+0x23/0x60 [amdgpu
862ae11de1ab090ca7bb91314cbbd73412a175ad]
[35555.912248] [ C8] __handle_irq_event_percpu+0x4a/0x190
[35555.912253] [ C8] handle_irq_event+0x38/0x80
[35555.912255] [ C8] handle_edge_irq+0x8b/0x230
[35555.912258] [ C8] __common_interrupt+0x3f/0x90
[35555.912262] [ C8] common_interrupt+0x42/0xa0
[35555.912265] [ C8] asm_common_interrupt+0x26/0x40
[35555.912268] [ C8] RIP: 0033:0x7f7471b6c91a
[35555.912293] [ C8] Code: c5 fe 6f 0e c5 fe 6f 56 20 c5 fe 6f 5e 40 c5 fe
6f 66 60 48 83 ee 80 c5 fd 7f 0f c5 fd 7f 57 20 c5 fd 7f 5f 40 c5 fd 7f 67 60
<48> 83 ef 80 48 39 fa 77 cd c5 fe 7f 6a 60 c5 fe 7f 72 40 c5 fe 7f
[35555.912295] [ C8] RSP: 002b:00007f73f1bff7e8 EFLAGS: 00200203
[35555.912297] [ C8] RAX: 00007f735b814edc RBX: 0000000000000002 RCX:
00007f735b814edc
[35555.912298] [ C8] RDX: 00007f735b81505c RSI: 00007f7380652404 RDI:
00007f735b814f60
[35555.912300] [ C8] RBP: 00007f735b814edc R08: 0000000000000000 R09:
00007f72eeb46401
[35555.912301] [ C8] R10: 00007f73e1cdb6e0 R11: 0000000000000002 R12:
00007f7380652300
[35555.912303] [ C8] R13: 00007f73f1bffac0 R14: 0000000000000004 R15:
0000000000000200
[35555.912308] [ C8] </TASK>
[35555.912310] [ C8] Modules linked in: binfmt_misc rfcomm snd_seq_dummy
snd_hrtimer snd_seq af_packet joydev nf_nat_tftp nf_conntrack_tftp
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
nf_tables qrtr cmac algif_hash algif_skcipher af_alg bnep mt7921e mt7921_common
mt792x_lib mt76_connac_lib mt76 btusb btrtl mac80211 btintel btbcm btmtk
libarc4 bluetooth cfg80211 ecdh_generic snd_hda_codec_realtek amd_atl
intel_rapl_msr intel_rapl_common snd_hda_codec_generic snd_hda_scodec_component
snd_hda_codec_hdmi edac_mce_amd snd_hda_intel ext4 nls_iso8859_1 snd_usb_audio
snd_intel_dspcfg snd_intel_sdw_acpi nls_cp437 kvm_amd mbcache snd_usbmidi_lib
vfat snd_ump fat jbd2 ledtrig_netdev snd_rawmidi uvcvideo snd_hda_codec kvm
snd_hda_core videobuf2_vmalloc snd_seq_device snd_hwdep uvc videobuf2_memops
gigabyte_wmi snd_pcm pcspkr wmi_bmof videobuf2_v4l2 acpi_cpufreq
[35555.912373] [ C8] snd_timer videobuf2_common k10temp i2c_piix4 snd
i2c_nvidia_gpu i2c_ccgx_ucsi soundcore rfkill igc razermouse(OE) razerkbd(OE)
thermal tiny_power_button nvme_fabrics fuse loop dm_mod efi_pstore configfs
nfnetlink dmi_sysfs ip_tables x_tables hid_generic usbhid amdgpu
crct10dif_pclmul crc32_pclmul ahci polyval_clmulni libahci video
polyval_generic amdxcp gf128mul i2c_algo_bit drm_ttm_helper libata
ghash_clmulni_intel ttm drm_exec sha512_ssse3 gpu_sched sha256_ssse3 sd_mod
sha1_ssse3 drm_suballoc_helper drm_buddy scsi_dh_emc nvme xhci_pci scsi_dh_rdac
drm_display_helper xhci_pci_renesas scsi_dh_alua aesni_intel cec sg xhci_hcd
nvme_core crypto_simd rc_core cryptd ccp sp5100_tco scsi_mod usbcore nvme_auth
scsi_common t10_pi wmi button vfio_pci vfio_pci_core vfio_iommu_type1 vfio
btrfs blake2b_generic libcrc32c crc32c_intel xor raid6_pq v4l2loopback(O)
videodev mc msr i2c_dev efivarfs
[35555.912436] [ C8] CR2: 0000000000000000
the problem re-appeared