nouveau 0000:03:00.0: timer: stalled at ffffffffffffffff

Hello Nouveau project,

I am experiencing frequent crashes of the nouveau kernel module under Ubuntu Noble 24.04 with kernel 6.8.0-50-generic. I apologize if this has already been reported. I looked already and I was not able to find anything containing the keywords in my stacktrace that I searched for.

Here is the kernel stacktrace for a single CPU:

nouveau 0000:03:00.0: timer: stalled at ffffffffffffffff
------------[ cut here ]------------
nouveau 0000:03:00.0: timeout
WARNING: CPU: 10 PID: 1837128 at drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c:35 g84_bar_flush+0x109/0x120 [nouveau]
Modules linked in: sctp ip6_udp_tunnel udp_tunnel tcp_diag inet_diag usblp tls rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp nft_compat nft_masq nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 vboxnetadp(OE) vboxnetflt(OE) bridge stp llc vboxdrv(OE) nf_tables qrtr cmac algif_hash algif_skcipher af_alg bnep binfmt_misc dm_crypt joydev input_leds snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio snd_hda_codec snd_usbmidi_lib intel_rapl_msr snd_hda_core intel_rapl_common iwlmvm snd_ump snd_hwdep amdgpu nls_iso8859_1 nouveau snd_pcm mac80211 mxm_wmi edac_mce_amd drm_gpuvm amdxcp snd_seq_midi drm_exec snd_seq_midi_event drm_buddy btusb gpu_sched drm_suballoc_helper uvcvideo snd_rawmidi btrtl drm_ttm_helper libarc4 kvm_amd btintel videobuf2_vmalloc uvc ttm btbcm videobuf2_memops drm_display_helper videobuf2_v4l2 btmtk snd_seq kvm mfd_aaeon eeepc_wmi cec
 iwlwifi snd_seq_device videodev bluetooth irqbypass asus_wmi rc_core snd_timer ledtrig_audio i2c_algo_bit videobuf2_common sparse_keymap ecdh_generic rapl hid_corsair snd mc platform_profile video ecc cfg80211 wmi_bmof soundcore k10temp i2c_piix4 ccp gpio_amdpt r8125(OE) mac_hid sch_fq_codel nct6775 nct6775_core dm_multipath hwmon_vid msr parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 hid_generic uas usbhid hid usb_storage crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 sha1_ssse3 r8169 ahci realtek xhci_pci libahci xhci_pci_renesas wmi aesni_intel crypto_simd cryptd
CPU: 10 PID: 1837128 Comm: evolution Tainted: G        W  OE      6.8.0-49-generic #49-Ubuntu
Hardware name: ASUS System Product Name/TUF GAMING B550-PLUS (WI-FI), BIOS 3611 09/30/2024
RIP: 0010:g84_bar_flush+0x109/0x120 [nouveau]
Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 09 40 b4 e4 48 89 da 48 c7 c7 b0 dc 6d c1 48 89 c6 e8 f7 5b 0b e4 <0f> 0b eb 9c e8 be 26 1e e5 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
RSP: 0018:ffffba2ddb87b0f0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff9df781afd220 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffba2ddb87b138 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9df78f3628b8
R13: 0000000000000246 R14: ffff9df787168040 R15: 00000000000001cb
FS:  00007015c3d25e00(0000) GS:ffff9dfe8e700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000058cd041def70 CR3: 000000043d0e2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ? show_regs+0x6d/0x80
 ? __warn+0x89/0x160
 ? g84_bar_flush+0x109/0x120 [nouveau]
 ? report_bug+0x17e/0x1b0
 ? handle_bug+0x51/0xa0
 ? exc_invalid_op+0x18/0x80
 ? asm_exc_invalid_op+0x1b/0x20
 ? g84_bar_flush+0x109/0x120 [nouveau]
 nvkm_bar_flush+0x1f/0x40 [nouveau]
 nv50_instobj_release+0x31/0xb0 [nouveau]
 gp100_vmm_pgt_mem+0x124/0x1a0 [nouveau]
 nvkm_vmm_iter.isra.0+0x37a/0x7d0 [nouveau]
 ? __pfx_gp100_vmm_pgt_mem+0x10/0x10 [nouveau]
 ? __pfx_nvkm_vmm_ref_ptes+0x10/0x10 [nouveau]
 ? update_sd_lb_stats.constprop.0+0x88/0x400
 ? __pfx_gp100_vmm_pgt_mem+0x10/0x10 [nouveau]
 nvkm_vmm_ptes_get_map+0xef/0x130 [nouveau]
 ? __pfx_nvkm_vmm_ref_ptes+0x10/0x10 [nouveau]
 ? __pfx_gp100_vmm_pgt_mem+0x10/0x10 [nouveau]
 ? srso_return_thunk+0x5/0x5f
 ? nvkm_vmm_map_valid+0xce/0x200 [nouveau]
 nvkm_vmm_map_locked+0x225/0x3c0 [nouveau]
 nvkm_vmm_map+0x9e/0x100 [nouveau]
 nvkm_vram_map+0x57/0x90 [nouveau]
 nv50_instobj_map+0x19/0x30 [nouveau]
 nv50_instobj_kmap+0x1ef/0x290 [nouveau]
 ? nvkm_instobj_ctor+0x5d/0x70 [nouveau]
 nv50_instobj_acquire+0x199/0x1b0 [nouveau]
 nvkm_instobj_new+0x14c/0x1d0 [nouveau]
 ? srso_return_thunk+0x5/0x5f
 nvkm_memory_new+0x92/0xb0 [nouveau]
 nvkm_mmu_ptc_get.part.0+0xf2/0x2e0 [nouveau]
 nvkm_mmu_ptc_get+0x27/0x80 [nouveau]
 nvkm_vmm_ctor+0x16a/0x670 [nouveau]
 nvkm_vmm_new_+0x98/0xd0 [nouveau]
 gp100_vmm_new_+0x6c/0xb0 [nouveau]
 tu102_vmm_new+0x33/0x50 [nouveau]
 nvkm_uvmm_new+0x1ef/0x240 [nouveau]
 nvkm_ioctl_new+0x16d/0x2e0 [nouveau]
 ? __pfx_nvkm_uvmm_new+0x10/0x10 [nouveau]
 nvkm_ioctl+0x135/0x2b0 [nouveau]
 nvkm_client_ioctl+0xe/0x20 [nouveau]
 nvif_object_ctor+0x10d/0x1a0 [nouveau]
 nvif_vmm_ctor+0x13d/0x2a0 [nouveau]
 nouveau_vmm_init+0x3b/0x70 [nouveau]
 nouveau_cli_init+0x478/0x650 [nouveau]
 nouveau_drm_open+0x164/0x1f0 [nouveau]
 drm_file_alloc+0x1ed/0x2b0
 drm_open_helper+0x77/0x130
 ? drm_minor_acquire+0xb1/0x180
 drm_open+0x6f/0x120
 drm_stub_open+0xaf/0xf0
 chrdev_open+0xd2/0x250
 ? __pfx_chrdev_open+0x10/0x10
 do_dentry_open+0x220/0x570
 vfs_open+0x33/0x50
 do_open+0x2ed/0x470
 path_openat+0x135/0x2d0
 ? srso_return_thunk+0x5/0x5f
 ? do_syscall_64+0x8c/0x180
 do_filp_open+0xaf/0x170
 do_sys_openat2+0xb3/0xe0
 __x64_sys_openat+0x55/0xa0
 x64_sys_call+0x1eb8/0x25c0
 do_syscall_64+0x7f/0x180
 ? do_sys_openat2+0x9f/0xe0
 ? srso_return_thunk+0x5/0x5f
 ? srso_return_thunk+0x5/0x5f
 ? __x64_sys_openat+0x55/0xa0
 ? srso_return_thunk+0x5/0x5f
 ? syscall_exit_to_user_mode+0x86/0x260
 ? srso_return_thunk+0x5/0x5f
 ? do_syscall_64+0x8c/0x180
 ? srso_return_thunk+0x5/0x5f
 ? do_syscall_64+0x8c/0x180
 ? srso_return_thunk+0x5/0x5f
 ? do_syscall_64+0x8c/0x180
 ? syscall_exit_to_user_mode+0x86/0x260
 ? srso_return_thunk+0x5/0x5f
 ? do_syscall_64+0x8c/0x180
 ? irqentry_exit+0x43/0x50
 ? srso_return_thunk+0x5/0x5f
 entry_SYSCALL_64_after_hwframe+0x78/0x80
RIP: 0033:0x7015cad1b1e5
Code: 8b 55 d0 48 89 45 b0 75 a0 44 89 55 9c e8 73 d3 f7 ff 44 8b 55 9c 89 da 4c 89 e6 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 89 45 9c e8 c8 d3 f7 ff 8b 45 9c
RSP: 002b:00007fffef24bde0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000080002 RCX: 00007015cad1b1e5
RDX: 0000000000080002 RSI: 0000589ff1dda6e8 RDI: 00000000ffffff9c
RBP: 00007fffef24be50 R08: 0000000000000000 R09: 0000000000000007
R10: 0000000000000000 R11: 0000000000000293 R12: 0000589ff1dda6e8
R13: 00007fffef24c180 R14: 00007fffef24bf00 R15: 00007fffef24bef0
 </TASK>
---[ end trace 0000000000000000 ]---

Some information about the module:

$ modinfo nouveau
filename:       /lib/modules/6.8.0-50-generic/kernel/drivers/gpu/drm/nouveau/nouveau.ko.zst
firmware:       nvidia/gp100/acr/ucode_load.bin
firmware:       nvidia/gp100/acr/bl.bin
firmware:       nvidia/gm206/acr/ucode_load.bin
firmware:       nvidia/gm206/acr/bl.bin
firmware:       nvidia/gm204/acr/ucode_load.bin
firmware:       nvidia/gm204/acr/bl.bin
firmware:       nvidia/gm200/acr/ucode_load.bin
firmware:       nvidia/gm200/acr/bl.bin
firmware:       nvidia/gp100/acr/ucode_unload.bin
firmware:       nvidia/gm206/acr/ucode_unload.bin
firmware:       nvidia/gm204/acr/ucode_unload.bin
firmware:       nvidia/gm200/acr/ucode_unload.bin
firmware:       nvidia/gp107/acr/ucode_load.bin
firmware:       nvidia/gp107/acr/bl.bin
firmware:       nvidia/gp106/acr/ucode_load.bin
firmware:       nvidia/gp106/acr/bl.bin
firmware:       nvidia/gp104/acr/ucode_load.bin
firmware:       nvidia/gp104/acr/bl.bin
firmware:       nvidia/gp102/acr/ucode_load.bin
firmware:       nvidia/gp102/acr/bl.bin
firmware:       nvidia/gp107/acr/ucode_unload.bin
firmware:       nvidia/gp107/acr/unload_bl.bin
firmware:       nvidia/gp106/acr/ucode_unload.bin
firmware:       nvidia/gp106/acr/unload_bl.bin
firmware:       nvidia/gp104/acr/ucode_unload.bin
firmware:       nvidia/gp104/acr/unload_bl.bin
firmware:       nvidia/gp102/acr/ucode_unload.bin
firmware:       nvidia/gp102/acr/unload_bl.bin
firmware:       nvidia/gp108/acr/ucode_load.bin
firmware:       nvidia/gp108/acr/bl.bin
firmware:       nvidia/gp108/acr/ucode_unload.bin
firmware:       nvidia/gp108/acr/unload_bl.bin
firmware:       nvidia/gv100/acr/ucode_load.bin
firmware:       nvidia/gv100/acr/bl.bin
firmware:       nvidia/gv100/acr/ucode_unload.bin
firmware:       nvidia/gv100/acr/unload_bl.bin
firmware:       nvidia/tu117/acr/ucode_ahesasc.bin
firmware:       nvidia/tu117/acr/bl.bin
firmware:       nvidia/tu116/acr/ucode_ahesasc.bin
firmware:       nvidia/tu116/acr/bl.bin
firmware:       nvidia/tu106/acr/ucode_ahesasc.bin
firmware:       nvidia/tu106/acr/bl.bin
firmware:       nvidia/tu104/acr/ucode_ahesasc.bin
firmware:       nvidia/tu104/acr/bl.bin
firmware:       nvidia/tu102/acr/ucode_ahesasc.bin
firmware:       nvidia/tu102/acr/bl.bin
firmware:       nvidia/tu117/acr/ucode_asb.bin
firmware:       nvidia/tu116/acr/ucode_asb.bin
firmware:       nvidia/tu106/acr/ucode_asb.bin
firmware:       nvidia/tu104/acr/ucode_asb.bin
firmware:       nvidia/tu102/acr/ucode_asb.bin
firmware:       nvidia/tu117/acr/ucode_unload.bin
firmware:       nvidia/tu117/acr/unload_bl.bin
firmware:       nvidia/tu116/acr/ucode_unload.bin
firmware:       nvidia/tu116/acr/unload_bl.bin
firmware:       nvidia/tu106/acr/ucode_unload.bin
firmware:       nvidia/tu106/acr/unload_bl.bin
firmware:       nvidia/tu104/acr/ucode_unload.bin
firmware:       nvidia/tu104/acr/unload_bl.bin
firmware:       nvidia/tu102/acr/ucode_unload.bin
firmware:       nvidia/tu102/acr/unload_bl.bin
firmware:       nvidia/ga107/acr/ucode_ahesasc.bin
firmware:       nvidia/ga106/acr/ucode_ahesasc.bin
firmware:       nvidia/ga104/acr/ucode_ahesasc.bin
firmware:       nvidia/ga103/acr/ucode_ahesasc.bin
firmware:       nvidia/ga102/acr/ucode_ahesasc.bin
firmware:       nvidia/ga107/acr/ucode_asb.bin
firmware:       nvidia/ga106/acr/ucode_asb.bin
firmware:       nvidia/ga104/acr/ucode_asb.bin
firmware:       nvidia/ga103/acr/ucode_asb.bin
firmware:       nvidia/ga102/acr/ucode_asb.bin
firmware:       nvidia/ga107/acr/ucode_unload.bin
firmware:       nvidia/ga106/acr/ucode_unload.bin
firmware:       nvidia/ga104/acr/ucode_unload.bin
firmware:       nvidia/ga103/acr/ucode_unload.bin
firmware:       nvidia/ga102/acr/ucode_unload.bin
firmware:       nvidia/gp108/nvdec/scrubber.bin
firmware:       nvidia/gp107/nvdec/scrubber.bin
firmware:       nvidia/gp106/nvdec/scrubber.bin
firmware:       nvidia/gp104/nvdec/scrubber.bin
firmware:       nvidia/gp102/nvdec/scrubber.bin
firmware:       nvidia/gv100/nvdec/scrubber.bin
firmware:       nvidia/tu117/nvdec/scrubber.bin
firmware:       nvidia/tu116/nvdec/scrubber.bin
firmware:       nvidia/tu106/nvdec/scrubber.bin
firmware:       nvidia/tu104/nvdec/scrubber.bin
firmware:       nvidia/tu102/nvdec/scrubber.bin
firmware:       nvidia/ga107/nvdec/scrubber.bin
firmware:       nvidia/ga106/nvdec/scrubber.bin
firmware:       nvidia/ga104/nvdec/scrubber.bin
firmware:       nvidia/ga103/nvdec/scrubber.bin
firmware:       nvidia/ga102/nvdec/scrubber.bin
firmware:       nvidia/ad107/gsp/gsp-535.113.01.bin
firmware:       nvidia/ad107/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ad107/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ad107/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ad106/gsp/gsp-535.113.01.bin
firmware:       nvidia/ad106/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ad106/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ad106/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ad104/gsp/gsp-535.113.01.bin
firmware:       nvidia/ad104/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ad104/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ad104/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ad103/gsp/gsp-535.113.01.bin
firmware:       nvidia/ad103/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ad103/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ad103/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ad102/gsp/gsp-535.113.01.bin
firmware:       nvidia/ad102/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ad102/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ad102/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga107/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga107/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga107/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga107/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga106/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga106/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga106/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga106/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga104/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga104/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga104/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga104/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga103/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga103/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga103/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga103/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga102/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga102/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga102/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga102/gsp/booter_load-535.113.01.bin
firmware:       nvidia/ga100/gsp/gsp-535.113.01.bin
firmware:       nvidia/ga100/gsp/bootloader-535.113.01.bin
firmware:       nvidia/ga100/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/ga100/gsp/booter_load-535.113.01.bin
firmware:       nvidia/tu117/gsp/gsp-535.113.01.bin
firmware:       nvidia/tu117/gsp/bootloader-535.113.01.bin
firmware:       nvidia/tu117/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/tu117/gsp/booter_load-535.113.01.bin
firmware:       nvidia/tu116/gsp/gsp-535.113.01.bin
firmware:       nvidia/tu116/gsp/bootloader-535.113.01.bin
firmware:       nvidia/tu116/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/tu116/gsp/booter_load-535.113.01.bin
firmware:       nvidia/tu106/gsp/gsp-535.113.01.bin
firmware:       nvidia/tu106/gsp/bootloader-535.113.01.bin
firmware:       nvidia/tu106/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/tu106/gsp/booter_load-535.113.01.bin
firmware:       nvidia/tu104/gsp/gsp-535.113.01.bin
firmware:       nvidia/tu104/gsp/bootloader-535.113.01.bin
firmware:       nvidia/tu104/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/tu104/gsp/booter_load-535.113.01.bin
firmware:       nvidia/tu102/gsp/gsp-535.113.01.bin
firmware:       nvidia/tu102/gsp/bootloader-535.113.01.bin
firmware:       nvidia/tu102/gsp/booter_unload-535.113.01.bin
firmware:       nvidia/tu102/gsp/booter_load-535.113.01.bin
firmware:       nvidia/gm206/gr/sw_method_init.bin
firmware:       nvidia/gm206/gr/sw_bundle_init.bin
firmware:       nvidia/gm206/gr/sw_nonctx.bin
firmware:       nvidia/gm206/gr/sw_ctx.bin
firmware:       nvidia/gm206/gr/gpccs_sig.bin
firmware:       nvidia/gm206/gr/gpccs_data.bin
firmware:       nvidia/gm206/gr/gpccs_inst.bin
firmware:       nvidia/gm206/gr/gpccs_bl.bin
firmware:       nvidia/gm206/gr/fecs_sig.bin
firmware:       nvidia/gm206/gr/fecs_data.bin
firmware:       nvidia/gm206/gr/fecs_inst.bin
firmware:       nvidia/gm206/gr/fecs_bl.bin
firmware:       nvidia/gm204/gr/sw_method_init.bin
firmware:       nvidia/gm204/gr/sw_bundle_init.bin
firmware:       nvidia/gm204/gr/sw_nonctx.bin
firmware:       nvidia/gm204/gr/sw_ctx.bin
firmware:       nvidia/gm204/gr/gpccs_sig.bin
firmware:       nvidia/gm204/gr/gpccs_data.bin
firmware:       nvidia/gm204/gr/gpccs_inst.bin
firmware:       nvidia/gm204/gr/gpccs_bl.bin
firmware:       nvidia/gm204/gr/fecs_sig.bin
firmware:       nvidia/gm204/gr/fecs_data.bin
firmware:       nvidia/gm204/gr/fecs_inst.bin
firmware:       nvidia/gm204/gr/fecs_bl.bin
firmware:       nvidia/gm200/gr/sw_method_init.bin
firmware:       nvidia/gm200/gr/sw_bundle_init.bin
firmware:       nvidia/gm200/gr/sw_nonctx.bin
firmware:       nvidia/gm200/gr/sw_ctx.bin
firmware:       nvidia/gm200/gr/gpccs_sig.bin
firmware:       nvidia/gm200/gr/gpccs_data.bin
firmware:       nvidia/gm200/gr/gpccs_inst.bin
firmware:       nvidia/gm200/gr/gpccs_bl.bin
firmware:       nvidia/gm200/gr/fecs_sig.bin
firmware:       nvidia/gm200/gr/fecs_data.bin
firmware:       nvidia/gm200/gr/fecs_inst.bin
firmware:       nvidia/gm200/gr/fecs_bl.bin
firmware:       nvidia/gp100/gr/sw_method_init.bin
firmware:       nvidia/gp100/gr/sw_bundle_init.bin
firmware:       nvidia/gp100/gr/sw_nonctx.bin
firmware:       nvidia/gp100/gr/sw_ctx.bin
firmware:       nvidia/gp100/gr/gpccs_sig.bin
firmware:       nvidia/gp100/gr/gpccs_data.bin
firmware:       nvidia/gp100/gr/gpccs_inst.bin
firmware:       nvidia/gp100/gr/gpccs_bl.bin
firmware:       nvidia/gp100/gr/fecs_sig.bin
firmware:       nvidia/gp100/gr/fecs_data.bin
firmware:       nvidia/gp100/gr/fecs_inst.bin
firmware:       nvidia/gp100/gr/fecs_bl.bin
firmware:       nvidia/gp102/gr/sw_method_init.bin
firmware:       nvidia/gp102/gr/sw_bundle_init.bin
firmware:       nvidia/gp102/gr/sw_nonctx.bin
firmware:       nvidia/gp102/gr/sw_ctx.bin
firmware:       nvidia/gp102/gr/gpccs_sig.bin
firmware:       nvidia/gp102/gr/gpccs_data.bin
firmware:       nvidia/gp102/gr/gpccs_inst.bin
firmware:       nvidia/gp102/gr/gpccs_bl.bin
firmware:       nvidia/gp102/gr/fecs_sig.bin
firmware:       nvidia/gp102/gr/fecs_data.bin
firmware:       nvidia/gp102/gr/fecs_inst.bin
firmware:       nvidia/gp102/gr/fecs_bl.bin
firmware:       nvidia/gp106/gr/sw_method_init.bin
firmware:       nvidia/gp106/gr/sw_bundle_init.bin
firmware:       nvidia/gp106/gr/sw_nonctx.bin
firmware:       nvidia/gp106/gr/sw_ctx.bin
firmware:       nvidia/gp106/gr/gpccs_sig.bin
firmware:       nvidia/gp106/gr/gpccs_data.bin
firmware:       nvidia/gp106/gr/gpccs_inst.bin
firmware:       nvidia/gp106/gr/gpccs_bl.bin
firmware:       nvidia/gp106/gr/fecs_sig.bin
firmware:       nvidia/gp106/gr/fecs_data.bin
firmware:       nvidia/gp106/gr/fecs_inst.bin
firmware:       nvidia/gp106/gr/fecs_bl.bin
firmware:       nvidia/gp104/gr/sw_method_init.bin
firmware:       nvidia/gp104/gr/sw_bundle_init.bin
firmware:       nvidia/gp104/gr/sw_nonctx.bin
firmware:       nvidia/gp104/gr/sw_ctx.bin
firmware:       nvidia/gp104/gr/gpccs_sig.bin
firmware:       nvidia/gp104/gr/gpccs_data.bin
firmware:       nvidia/gp104/gr/gpccs_inst.bin
firmware:       nvidia/gp104/gr/gpccs_bl.bin
firmware:       nvidia/gp104/gr/fecs_sig.bin
firmware:       nvidia/gp104/gr/fecs_data.bin
firmware:       nvidia/gp104/gr/fecs_inst.bin
firmware:       nvidia/gp104/gr/fecs_bl.bin
firmware:       nvidia/gp107/gr/sw_method_init.bin
firmware:       nvidia/gp107/gr/sw_bundle_init.bin
firmware:       nvidia/gp107/gr/sw_nonctx.bin
firmware:       nvidia/gp107/gr/sw_ctx.bin
firmware:       nvidia/gp107/gr/gpccs_sig.bin
firmware:       nvidia/gp107/gr/gpccs_data.bin
firmware:       nvidia/gp107/gr/gpccs_inst.bin
firmware:       nvidia/gp107/gr/gpccs_bl.bin
firmware:       nvidia/gp107/gr/fecs_sig.bin
firmware:       nvidia/gp107/gr/fecs_data.bin
firmware:       nvidia/gp107/gr/fecs_inst.bin
firmware:       nvidia/gp107/gr/fecs_bl.bin
firmware:       nvidia/gp108/gr/sw_method_init.bin
firmware:       nvidia/gp108/gr/sw_bundle_init.bin
firmware:       nvidia/gp108/gr/sw_nonctx.bin
firmware:       nvidia/gp108/gr/sw_ctx.bin
firmware:       nvidia/gp108/gr/gpccs_sig.bin
firmware:       nvidia/gp108/gr/gpccs_data.bin
firmware:       nvidia/gp108/gr/gpccs_inst.bin
firmware:       nvidia/gp108/gr/gpccs_bl.bin
firmware:       nvidia/gp108/gr/fecs_sig.bin
firmware:       nvidia/gp108/gr/fecs_data.bin
firmware:       nvidia/gp108/gr/fecs_inst.bin
firmware:       nvidia/gp108/gr/fecs_bl.bin
firmware:       nvidia/gv100/gr/sw_method_init.bin
firmware:       nvidia/gv100/gr/sw_bundle_init.bin
firmware:       nvidia/gv100/gr/sw_nonctx.bin
firmware:       nvidia/gv100/gr/sw_ctx.bin
firmware:       nvidia/gv100/gr/gpccs_sig.bin
firmware:       nvidia/gv100/gr/gpccs_data.bin
firmware:       nvidia/gv100/gr/gpccs_inst.bin
firmware:       nvidia/gv100/gr/gpccs_bl.bin
firmware:       nvidia/gv100/gr/fecs_sig.bin
firmware:       nvidia/gv100/gr/fecs_data.bin
firmware:       nvidia/gv100/gr/fecs_inst.bin
firmware:       nvidia/gv100/gr/fecs_bl.bin
firmware:       nvidia/tu116/gr/sw_veid_bundle_init.bin
firmware:       nvidia/tu116/gr/sw_method_init.bin
firmware:       nvidia/tu116/gr/sw_bundle_init.bin
firmware:       nvidia/tu116/gr/sw_nonctx.bin
firmware:       nvidia/tu116/gr/sw_ctx.bin
firmware:       nvidia/tu116/gr/gpccs_sig.bin
firmware:       nvidia/tu116/gr/gpccs_data.bin
firmware:       nvidia/tu116/gr/gpccs_inst.bin
firmware:       nvidia/tu116/gr/gpccs_bl.bin
firmware:       nvidia/tu116/gr/fecs_sig.bin
firmware:       nvidia/tu116/gr/fecs_data.bin
firmware:       nvidia/tu116/gr/fecs_inst.bin
firmware:       nvidia/tu116/gr/fecs_bl.bin
firmware:       nvidia/tu117/gr/sw_veid_bundle_init.bin
firmware:       nvidia/tu117/gr/sw_method_init.bin
firmware:       nvidia/tu117/gr/sw_bundle_init.bin
firmware:       nvidia/tu117/gr/sw_nonctx.bin
firmware:       nvidia/tu117/gr/sw_ctx.bin
firmware:       nvidia/tu117/gr/gpccs_sig.bin
firmware:       nvidia/tu117/gr/gpccs_data.bin
firmware:       nvidia/tu117/gr/gpccs_inst.bin
firmware:       nvidia/tu117/gr/gpccs_bl.bin
firmware:       nvidia/tu117/gr/fecs_sig.bin
firmware:       nvidia/tu117/gr/fecs_data.bin
firmware:       nvidia/tu117/gr/fecs_inst.bin
firmware:       nvidia/tu117/gr/fecs_bl.bin
firmware:       nvidia/tu106/gr/sw_veid_bundle_init.bin
firmware:       nvidia/tu106/gr/sw_method_init.bin
firmware:       nvidia/tu106/gr/sw_bundle_init.bin
firmware:       nvidia/tu106/gr/sw_nonctx.bin
firmware:       nvidia/tu106/gr/sw_ctx.bin
firmware:       nvidia/tu106/gr/gpccs_sig.bin
firmware:       nvidia/tu106/gr/gpccs_data.bin
firmware:       nvidia/tu106/gr/gpccs_inst.bin
firmware:       nvidia/tu106/gr/gpccs_bl.bin
firmware:       nvidia/tu106/gr/fecs_sig.bin
firmware:       nvidia/tu106/gr/fecs_data.bin
firmware:       nvidia/tu106/gr/fecs_inst.bin
firmware:       nvidia/tu106/gr/fecs_bl.bin
firmware:       nvidia/tu104/gr/sw_veid_bundle_init.bin
firmware:       nvidia/tu104/gr/sw_method_init.bin
firmware:       nvidia/tu104/gr/sw_bundle_init.bin
firmware:       nvidia/tu104/gr/sw_nonctx.bin
firmware:       nvidia/tu104/gr/sw_ctx.bin
firmware:       nvidia/tu104/gr/gpccs_sig.bin
firmware:       nvidia/tu104/gr/gpccs_data.bin
firmware:       nvidia/tu104/gr/gpccs_inst.bin
firmware:       nvidia/tu104/gr/gpccs_bl.bin
firmware:       nvidia/tu104/gr/fecs_sig.bin
firmware:       nvidia/tu104/gr/fecs_data.bin
firmware:       nvidia/tu104/gr/fecs_inst.bin
firmware:       nvidia/tu104/gr/fecs_bl.bin
firmware:       nvidia/tu102/gr/sw_veid_bundle_init.bin
firmware:       nvidia/tu102/gr/sw_method_init.bin
firmware:       nvidia/tu102/gr/sw_bundle_init.bin
firmware:       nvidia/tu102/gr/sw_nonctx.bin
firmware:       nvidia/tu102/gr/sw_ctx.bin
firmware:       nvidia/tu102/gr/gpccs_sig.bin
firmware:       nvidia/tu102/gr/gpccs_data.bin
firmware:       nvidia/tu102/gr/gpccs_inst.bin
firmware:       nvidia/tu102/gr/gpccs_bl.bin
firmware:       nvidia/tu102/gr/fecs_sig.bin
firmware:       nvidia/tu102/gr/fecs_data.bin
firmware:       nvidia/tu102/gr/fecs_inst.bin
firmware:       nvidia/tu102/gr/fecs_bl.bin
firmware:       nvidia/ga107/gr/NET_img.bin
firmware:       nvidia/ga107/gr/gpccs_sig.bin
firmware:       nvidia/ga107/gr/gpccs_bl.bin
firmware:       nvidia/ga107/gr/fecs_sig.bin
firmware:       nvidia/ga107/gr/fecs_bl.bin
firmware:       nvidia/ga106/gr/NET_img.bin
firmware:       nvidia/ga106/gr/gpccs_sig.bin
firmware:       nvidia/ga106/gr/gpccs_bl.bin
firmware:       nvidia/ga106/gr/fecs_sig.bin
firmware:       nvidia/ga106/gr/fecs_bl.bin
firmware:       nvidia/ga104/gr/NET_img.bin
firmware:       nvidia/ga104/gr/gpccs_sig.bin
firmware:       nvidia/ga104/gr/gpccs_bl.bin
firmware:       nvidia/ga104/gr/fecs_sig.bin
firmware:       nvidia/ga104/gr/fecs_bl.bin
firmware:       nvidia/ga103/gr/NET_img.bin
firmware:       nvidia/ga103/gr/gpccs_sig.bin
firmware:       nvidia/ga103/gr/gpccs_bl.bin
firmware:       nvidia/ga103/gr/fecs_sig.bin
firmware:       nvidia/ga103/gr/fecs_bl.bin
firmware:       nvidia/ga102/gr/NET_img.bin
firmware:       nvidia/ga102/gr/gpccs_sig.bin
firmware:       nvidia/ga102/gr/gpccs_bl.bin
firmware:       nvidia/ga102/gr/fecs_sig.bin
firmware:       nvidia/ga102/gr/fecs_bl.bin
firmware:       nvidia/gp107/sec2/sig-1.bin
firmware:       nvidia/gp107/sec2/image-1.bin
firmware:       nvidia/gp107/sec2/desc-1.bin
firmware:       nvidia/gp106/sec2/sig-1.bin
firmware:       nvidia/gp106/sec2/image-1.bin
firmware:       nvidia/gp106/sec2/desc-1.bin
firmware:       nvidia/gp104/sec2/sig-1.bin
firmware:       nvidia/gp104/sec2/image-1.bin
firmware:       nvidia/gp104/sec2/desc-1.bin
firmware:       nvidia/gp102/sec2/sig-1.bin
firmware:       nvidia/gp102/sec2/image-1.bin
firmware:       nvidia/gp102/sec2/desc-1.bin
firmware:       nvidia/gp107/sec2/sig.bin
firmware:       nvidia/gp107/sec2/image.bin
firmware:       nvidia/gp107/sec2/desc.bin
firmware:       nvidia/gp106/sec2/sig.bin
firmware:       nvidia/gp106/sec2/image.bin
firmware:       nvidia/gp106/sec2/desc.bin
firmware:       nvidia/gp104/sec2/sig.bin
firmware:       nvidia/gp104/sec2/image.bin
firmware:       nvidia/gp104/sec2/desc.bin
firmware:       nvidia/gp102/sec2/sig.bin
firmware:       nvidia/gp102/sec2/image.bin
firmware:       nvidia/gp102/sec2/desc.bin
firmware:       nvidia/gv100/sec2/sig.bin
firmware:       nvidia/gv100/sec2/image.bin
firmware:       nvidia/gv100/sec2/desc.bin
firmware:       nvidia/gp108/sec2/sig.bin
firmware:       nvidia/gp108/sec2/image.bin
firmware:       nvidia/gp108/sec2/desc.bin
firmware:       nvidia/tu117/sec2/sig.bin
firmware:       nvidia/tu117/sec2/image.bin
firmware:       nvidia/tu117/sec2/desc.bin
firmware:       nvidia/tu116/sec2/sig.bin
firmware:       nvidia/tu116/sec2/image.bin
firmware:       nvidia/tu116/sec2/desc.bin
firmware:       nvidia/tu106/sec2/sig.bin
firmware:       nvidia/tu106/sec2/image.bin
firmware:       nvidia/tu106/sec2/desc.bin
firmware:       nvidia/tu104/sec2/sig.bin
firmware:       nvidia/tu104/sec2/image.bin
firmware:       nvidia/tu104/sec2/desc.bin
firmware:       nvidia/tu102/sec2/sig.bin
firmware:       nvidia/tu102/sec2/image.bin
firmware:       nvidia/tu102/sec2/desc.bin
firmware:       nvidia/ga107/sec2/hs_bl_sig.bin
firmware:       nvidia/ga107/sec2/sig.bin
firmware:       nvidia/ga107/sec2/image.bin
firmware:       nvidia/ga107/sec2/desc.bin
firmware:       nvidia/ga106/sec2/hs_bl_sig.bin
firmware:       nvidia/ga106/sec2/sig.bin
firmware:       nvidia/ga106/sec2/image.bin
firmware:       nvidia/ga106/sec2/desc.bin
firmware:       nvidia/ga104/sec2/hs_bl_sig.bin
firmware:       nvidia/ga104/sec2/sig.bin
firmware:       nvidia/ga104/sec2/image.bin
firmware:       nvidia/ga104/sec2/desc.bin
firmware:       nvidia/ga103/sec2/hs_bl_sig.bin
firmware:       nvidia/ga103/sec2/sig.bin
firmware:       nvidia/ga103/sec2/image.bin
firmware:       nvidia/ga103/sec2/desc.bin
firmware:       nvidia/ga102/sec2/hs_bl_sig.bin
firmware:       nvidia/ga102/sec2/sig.bin
firmware:       nvidia/ga102/sec2/image.bin
firmware:       nvidia/ga102/sec2/desc.bin
license:        GPL and additional rights
description:    nVidia Riva/TNT/GeForce/Quadro/Tesla/Tegra K1+
author:         Nouveau Project
srcversion:     9D0D520D88EC3CD56635224
alias:          pci:v000012D2d*sv*sd*bc03sc*i*
alias:          pci:v000010DEd*sv*sd*bc03sc*i*
depends:        drm_display_helper,ttm,mxm-wmi,drm_gpuvm,i2c-algo-bit,gpu-sched,drm_exec,video,wmi,drm_ttm_helper
retpoline:      Y
intree:         Y
name:           nouveau
vermagic:       6.8.0-50-generic SMP preempt mod_unload modversions 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        03:3E:94:33:C9:E2:30:1D:BF:E8:D6:D8:BF:1C:09:F1:D4:26:7F:20
sig_hashalgo:   sha512
signature:      D4:A2:8D:B6:92:29:B4:98:4E:8E:27:96:98:83:73:E1:29:82:A1:F3:
		91:0A:65:80:88:76:FE:0B:12:1E:00:8B:DA:66:C8:B7:56:6F:AD:21:
		C1:34:2A:64:A6:F0:E1:FC:F1:48:2E:48:47:59:EF:BD:5B:BE:F5:C1:
		55:56:65:C6:24:4A:26:AD:01:F7:FB:C9:B1:4B:7D:0C:73:62:CE:6A:
		D4:1D:9F:13:23:9C:EE:D6:5E:F2:DC:D6:F2:F4:49:A5:02:78:B3:55:
		98:78:5C:F7:8E:C3:EB:28:CD:5F:59:6D:1B:BE:AF:BE:E0:43:08:DF:
		F5:BA:90:4B:70:94:06:D4:6E:F2:60:76:4A:02:D5:EF:C0:EA:52:91:
		59:B4:9A:36:E4:90:CC:12:39:DB:53:8B:0A:C7:D1:19:55:0A:CD:A3:
		68:D4:51:18:22:7A:3E:62:76:75:C5:CE:8D:9D:B7:DF:62:30:9C:29:
		85:3F:3F:3D:95:E9:AE:53:D4:4E:ED:D4:35:5C:CF:6E:FB:E7:6A:9A:
		1F:50:B5:D8:97:0B:2B:5F:1F:71:93:8E:36:23:3C:EF:27:20:1B:E9:
		94:CA:86:11:8E:68:14:3E:6A:92:33:B9:95:53:20:70:20:4D:76:E6:
		E8:FB:2C:D0:B5:10:40:11:AE:01:F6:84:49:76:E5:CF:6B:14:74:BF:
		A1:72:BC:77:81:12:82:A9:BB:B5:B8:07:A5:19:26:EA:CF:B5:9F:9B:
		27:D4:37:0B:2C:8F:94:0D:40:C4:0B:1E:81:D4:C8:64:D3:D9:2F:94:
		F2:14:D5:EF:99:E4:1B:F1:F3:74:CA:85:F5:69:6F:9D:CC:C4:03:45:
		C3:CF:4B:D5:E5:33:43:FF:C1:45:B9:62:BC:39:95:4B:A0:99:DC:FC:
		F3:DE:6F:F0:49:EB:2E:41:7C:D6:2E:04:A3:AF:CA:FB:E7:56:7E:40:
		F6:26:7F:93:D6:81:27:D3:A4:82:3A:32:A6:6A:6C:05:D1:44:2C:2C:
		3C:FD:0C:1A:2A:D5:3F:CA:FA:A1:03:26:C2:62:5E:26:E6:48:58:85:
		C7:F1:BB:23:E7:BC:9D:18:C1:D9:AF:BC:D4:A5:28:92:FB:8B:DA:98:
		0C:5E:76:6F:38:F0:2B:78:55:A0:7B:D1:92:AF:A7:7F:20:AF:FB:A9:
		52:66:C8:47:6C:F7:40:4D:11:75:62:84:9D:39:04:B0:E2:54:ED:05:
		FF:16:CF:F0:A7:A8:B6:7A:D3:AF:A2:FC:03:57:5C:EC:85:2E:6D:A1:
		BC:03:17:7F:D3:8B:8E:DD:E7:78:1F:19:74:E8:7D:08:FF:C1:20:35:
		C5:88:1D:BF:A5:A3:AE:2A:14:15:DD:53
parm:           vram_pushbuf:Create DMA push buffers in VRAM (int)
parm:           kms_vram_pushbuf:Place EVO/NVD push buffers in VRAM (default: auto) (int)
parm:           tv_norm:Default TV norm.
		Supported: PAL, PAL-M, PAL-N, PAL-Nc, NTSC-M, NTSC-J,
			hd480i, hd480p, hd576i, hd576p, hd720p, hd1080i.
		Default: PAL
		*NOTE* Ignored for cards with external TV encoders. (charp)
parm:           mst:Enable DisplayPort multi-stream (default: enabled) (int)
parm:           tv_disable:Disable TV-out detection (int)
parm:           ignorelid:Ignore ACPI lid status (int)
parm:           duallink:Allow dual-link TMDS (default: enabled) (int)
parm:           hdmimhz:Force a maximum HDMI pixel clock (in MHz) (int)
parm:           config:option string to pass to driver core (charp)
parm:           debug:debug string to pass to driver core (charp)
parm:           noaccel:disable kernel/abi16 acceleration (int)
parm:           modeset:enable driver (default: auto, 0 = disabled, 1 = enabled, 2 = headless) (int)
parm:           atomic:Expose atomic ioctl (default: disabled) (int)
parm:           runpm:disable (0), force enable (1), optimus only default (-1) (int)

Please let me know if I can provide further assistance.

You should check if an upstream supported kernel shows the same issue, but given you are running on an upstream unsupported kernel, you'd need to file a bug against ubuntu for them to backport any potential fixes.

But anyway, it seems like your GPU falls off the PCIe bus or crashes for real, but no point debugging as long as you are running a kernel which won't see any updates from our side, Ubuntu would be the project which would have to help you.

edit: also the complete kernel log would also help with debugging as it would also show what GPU you have there and other information.

Thanks @karolherbst. I've filed a report on Launchpad. I wasn't able to find anything upstream in the kernel's bugzilla.