The system is running Ubuntu 20.04 with the apt-installed nvidia driver 470. We have a LG webOS TV OLED55CX9LA.
When turning off the monitor with the IR remote, and then turning it on again, we see the following output in kern.log and the display stays frozen. Mouse and keyboard also no longer respond (numlock on keyboard is frozen). A remote ssh shell is still possible. We ran with startx -- -logverbose 6 to analyze it and the resulting post-crash log.gz is attached to this post.nvidia-bug-report.log.gz (394.2 KB)
Aug 6 17:30:29 tw-0015 kernel: [ 154.170597] BUG: kernel NULL pointer dereference, address: 0000000000000000
Aug 6 17:30:29 tw-0015 kernel: [ 154.170602] #PF: supervisor read access in kernel mode
Aug 6 17:30:29 tw-0015 kernel: [ 154.170603] #PF: error_code(0x0000) - not-present page
Aug 6 17:30:29 tw-0015 kernel: [ 154.170604] PGD 0 P4D 0
Aug 6 17:30:29 tw-0015 kernel: [ 154.170605] Oops: 0000 [#1] SMP NOPTI
Aug 6 17:30:29 tw-0015 kernel: [ 154.170608] CPU: 7 PID: 3591 Comm: Xorg Tainted: P O 5.11.0-25-generic #27~20.04.1-Ubuntu
Aug 6 17:30:29 tw-0015 kernel: [ 154.170609] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 2606 08/13/2020
Aug 6 17:30:29 tw-0015 kernel: [ 154.170611] RIP: 0010:_nv002189kms+0x12/0x30 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170630] Code: c0 48 85 d2 74 07 80 7a 08 00 0f 95 c0 f3 c3 66 0f 1f 84 00 00 00 00 00 48 8b 87 20 7f 00 00 40 84 f6 40 0f 95 c6 40 0f b6 f6 <48> 8b 38 48 8b 07 48 8b 80 10 01 00 00 e9 8c c8 6d cd 66 2e 0f 1f
Aug 6 17:30:29 tw-0015 kernel: [ 154.170632] RSP: 0018:ffffb707c0df3cc8 EFLAGS: 00010246
Aug 6 17:30:29 tw-0015 kernel: [ 154.170633] RAX: 0000000000000000 RBX: ffffb707c43e0008 RCX: 0000000000000001
Aug 6 17:30:29 tw-0015 kernel: [ 154.170634] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb707c43e0008
Aug 6 17:30:29 tw-0015 kernel: [ 154.170635] RBP: ffffb707c0cda058 R08: 0000000000000000 R09: 0000000000000be8
Aug 6 17:30:29 tw-0015 kernel: [ 154.170636] R10: ffff9eaed13e0008 R11: 0000000000010004 R12: ffff9eaed0a15008
Aug 6 17:30:29 tw-0015 kernel: [ 154.170637] R13: 0000000000000000 R14: ffffb707c0cd9008 R15: ffffb707c0cd9430
Aug 6 17:30:29 tw-0015 kernel: [ 154.170638] FS: 00007f772a748a40(0000) GS:ffff9ebdaebc0000(0000) knlGS:0000000000000000
Aug 6 17:30:29 tw-0015 kernel: [ 154.170639] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 6 17:30:29 tw-0015 kernel: [ 154.170640] CR2: 0000000000000000 CR3: 000000010d3c8000 CR4: 0000000000350ee0
Aug 6 17:30:29 tw-0015 kernel: [ 154.170641] Call Trace:
Aug 6 17:30:29 tw-0015 kernel: [ 154.170643] ? _nv002198kms+0x1ed/0x220 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170659] ? _nv002567kms+0x119b/0x1a80 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170674] ? __vmalloc_node+0x4e/0x70
Aug 6 17:30:29 tw-0015 kernel: [ 154.170678] ? _nv000562kms+0x50/0x50 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170690] ? nvKmsIoctl+0x96/0x1d0 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170702] ? nvkms_ioctl_common+0x42/0x80 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170714] ? nvkms_ioctl+0xbf/0x110 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170727] ? nvidia_frontend_unlocked_ioctl+0x3b/0x50 [nvidia]
Aug 6 17:30:29 tw-0015 kernel: [ 154.170899] ? __x64_sys_ioctl+0x91/0xc0
Aug 6 17:30:29 tw-0015 kernel: [ 154.170901] ? do_syscall_64+0x38/0x90
Aug 6 17:30:29 tw-0015 kernel: [ 154.170905] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
Aug 6 17:30:29 tw-0015 kernel: [ 154.170908] Modules linked in: xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c bpfilter br_netfilter bridge stp llc aufs overlay nls_iso8859_1 intel_rapl_msr snd_hda_codec_realtek intel_rapl_common snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation soundwire_cadence snd_hda_codec snd_hda_core snd_hwdep soundwire_bus snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine edac_mce_amd snd_pcm kvm snd_seq_midi snd_seq_midi_event snd_rawmidi rapl wmi_bmof eeepc_wmi efi_pstore input_leds joydev mxm_wmi snd_seq snd_seq_device snd_timer snd k10temp ccp soundcore mac_hid nvidia_uvm(PO) sch_fq_codel msr parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt hid_generic usbhid hid nvidia_drm(PO) nvidia_modeset(PO) nvidia(PO) asus_wmi sparse_keymap video drm_kms_helper crct10dif_pclmul
Aug 6 17:30:29 tw-0015 kernel: [ 154.170944] crc32_pclmul ghash_clmulni_intel aesni_intel syscopyarea sysfillrect sysimgblt crypto_simd cryptd fb_sys_fops glue_helper cec mfd_aaeon rc_core igb ahci dca drm i2c_algo_bit libahci nvme xhci_pci i2c_piix4 xhci_pci_renesas nvme_core wmi
Aug 6 17:30:29 tw-0015 kernel: [ 154.170957] CR2: 0000000000000000
Aug 6 17:30:29 tw-0015 kernel: [ 154.170959] —[ end trace 4724b640a0f40fc8 ]—
Aug 6 17:30:29 tw-0015 kernel: [ 154.354583] RIP: 0010:_nv002189kms+0x12/0x30 [nvidia_modeset]
Aug 6 17:30:29 tw-0015 kernel: [ 154.354601] Code: c0 48 85 d2 74 07 80 7a 08 00 0f 95 c0 f3 c3 66 0f 1f 84 00 00 00 00 00 48 8b 87 20 7f 00 00 40 84 f6 40 0f 95 c6 40 0f b6 f6 <48> 8b 38 48 8b 07 48 8b 80 10 01 00 00 e9 8c c8 6d cd 66 2e 0f 1f
Aug 6 17:30:29 tw-0015 kernel: [ 154.354602] RSP: 0018:ffffb707c0df3cc8 EFLAGS: 00010246
Aug 6 17:30:29 tw-0015 kernel: [ 154.354604] RAX: 0000000000000000 RBX: ffffb707c43e0008 RCX: 0000000000000001
Aug 6 17:30:29 tw-0015 kernel: [ 154.354605] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffb707c43e0008
Aug 6 17:30:29 tw-0015 kernel: [ 154.354606] RBP: ffffb707c0cda058 R08: 0000000000000000 R09: 0000000000000be8
Aug 6 17:30:29 tw-0015 kernel: [ 154.354606] R10: ffff9eaed13e0008 R11: 0000000000010004 R12: ffff9eaed0a15008
Aug 6 17:30:29 tw-0015 kernel: [ 154.354607] R13: 0000000000000000 R14: ffffb707c0cd9008 R15: ffffb707c0cd9430
Aug 6 17:30:29 tw-0015 kernel: [ 154.354608] FS: 00007f772a748a40(0000) GS:ffff9ebdaebc0000(0000) knlGS:0000000000000000
Aug 6 17:30:29 tw-0015 kernel: [ 154.354609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 6 17:30:29 tw-0015 kernel: [ 154.354610] CR2: 0000000000000000 CR3: 000000010d3c8000 CR4: 0000000000350ee0