In an attempt to reproduce the issue remotely, I provisioned the DGX
Station with Focal Ubuntu Server and followed these steps to reproduce:
1. Install desktop environment
$ sudo apt install ubuntu-desktop
2. Configure GDM
$ sudo vim /etc/gdm3/custom.conf
=> Uncomment WaylandEnable=false
=> Configure automatic login for the `ubuntu` user by setting
AutomaticLoginEnable = true
AutomaticLogin = ubuntu
3. Disable display timeout
$ gsettings set org.gnome.desktop.session idle-delay 0
4. Start GDM
$ sudo systemctl start gdm3
5. Wait ~30 seconds for desktop to load. I wasn't able to see the
display over my remote connection.
6. Enable 1 second display timeout and wait ~10 seconds
$ gsettings set org.gnome.desktop.session idle-delay 1
After following these steps, I did run into a kernel error, though I was not
able to see what occurred on screen, and the system did not hang:
[13579.239047] divide error: 0000 [#1] SMP PTI
[13579.239051] CPU: 27 PID: 39899 Comm: kworker/u80:2 Not tainted
5.4.0-196-generic #216-Ubuntu
[13579.239053] Hardware name: NVIDIA DGX Station/X99-E-10G WS, BIOS 0406
08/27/2018
[13579.239112] Workqueue: nvkm-disp gv100_disp_super [nouveau]
[13579.239159] RIP: 0010:nv50_disp_super_2_2+0x1b0/0x450 [nouveau]
[13579.239162] Code: 0f af c5 48 f7 f1 0f b7 53 4c 48 89 c6 0f b7 43 4e 83 e8
19 29 d0 31 d2 48 98 49 0f af c5 48 f7 f1 48 89 c1 b8 24 00 00 00 99 <41> f7 f8
83 c0 03 48 98 48 29 c1 41 0f b6 44 24 59 48 8d 49 ff 44
[13579.239164] RSP: 0018:ffffac5383d57db0 EFLAGS: 00010206
[13579.239166] RAX: 0000000000000024 RBX: ffff906c395062a0 RCX: 00000000000009b2
[13579.239167] RDX: 0000000000000000 RSI: 0000000000000168 RDI: ffffffffc090ed20
[13579.239169] RBP: ffffac5383d57e08 R08: 0000000000000000 R09: 8080808080808080
[13579.239170] R10: ffff906be77b1c34 R11: 0000000000000018 R12: ffff906c3dd34420
[13579.239171] R13: 0000000000041eb0 R14: 000000000001c03e R15: ffff906c395062a0
[13579.239173] FS: 0000000000000000(0000) GS:ffff906c5f8c0000(0000)
knlGS:0000000000000000
[13579.239175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[13579.239176] CR2: 00000000038f4098 CR3: 0000003f39344001 CR4: 00000000003606e0
[13579.239177] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[13579.239179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[13579.239180] Call Trace:
[13579.239186] ? show_regs.cold+0x1a/0x1f
[13579.239189] ? __die+0x90/0xd9
[13579.239194] ? die+0x30/0x50
[13579.239196] ? do_trap+0x85/0xf0
[13579.239199] ? do_error_trap+0x7c/0xc0
[13579.239244] ? nv50_disp_super_2_2+0x1b0/0x450 [nouveau]
[13579.239247] ? do_divide_error+0x39/0x50
[13579.239291] ? nv50_disp_super_2_2+0x1b0/0x450 [nouveau]
[13579.239295] ? divide_error+0x1e/0x30
[13579.239339] ? nv50_disp_super_2_2+0x1b0/0x450 [nouveau]
[13579.239383] gv100_disp_super+0x163/0x290 [nouveau]
[13579.239387] process_one_work+0x1eb/0x3b0
[13579.239389] worker_thread+0x4d/0x400
[13579.239392] kthread+0x104/0x140
[13579.239394] ? process_one_work+0x3b0/0x3b0
[13579.239396] ? kthread_park+0x90/0x90
[13579.239399] ret_from_fork+0x35/0x40
[13579.239401] Modules linked in: nls_iso8859_1 snd_hda_codec_hdmi dm_multipath
scsi_dh_rdac scsi_dh_emc scsi_dh_alua intel_rapl_msr intel_rapl_common
binfmt_misc sb_edac x86_pkg_temp_thermal coretemp kvm eeepc_wmi asus_wmi
snd_hda_codec_realtek rapl joydev intel_cstate input_leds wmi_bmof
sparse_keymap intel_wmi_thunderbolt snd_hda_codec_generic ledtrig_audio mei_me
mei snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm
snd_timer snd soundcore mac_hid sch_fq_codel msr ramoops reed_solomon
efi_pstore ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear nouveau crct10dif_pclmul crc32_pclmul
video ghash_clmulni_intel i2c_algo_bit ttm aesni_intel drm_kms_helper
crypto_simd syscopyarea mxm_wmi cryptd sysfillrect sysimgblt glue_helper ahci
fb_sys_fops lpc_ich i2c_i801 libahci ixgbe drm xfrm_algo dca mdio wmi
hid_generic usbhid hid uas usb_storage
[13579.239439] ---[ end trace 73a8b577b28d014c ]---
[13579.259788] RIP: 0010:nv50_disp_super_2_2+0x1b0/0x450 [nouveau]
[13579.259791] Code: 0f af c5 48 f7 f1 0f b7 53 4c 48 89 c6 0f b7 43 4e 83 e8
19 29 d0 31 d2 48 98 49 0f af c5 48 f7 f1 48 89 c1 b8 24 00 00 00 99 <41> f7 f8
83 c0 03 48 98 48 29 c1 41 0f b6 44 24 59 48 8d 49 ff 44
[13579.259794] RSP: 0018:ffffac5383d57db0 EFLAGS: 00010206
[13579.259795] RAX: 0000000000000024 RBX: ffff906c395062a0 RCX: 00000000000009b2
[13579.259796] RDX: 0000000000000000 RSI: 0000000000000168 RDI: ffffffffc090ed20
[13579.259797] RBP: ffffac5383d57e08 R08: 0000000000000000 R09: 8080808080808080
[13579.259798] R10: ffff906be77b1c34 R11: 0000000000000018 R12: ffff906c3dd34420
[13579.259799] R13: 0000000000041eb0 R14: 000000000001c03e R15: ffff906c395062a0
[13579.259801] FS: 0000000000000000(0000) GS:ffff906c5f8c0000(0000)
knlGS:0000000000000000
[13579.259802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[13579.259803] CR2: 00000000038f4098 CR3: 0000003f39344001 CR4: 00000000003606e0
[13579.259804] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[13579.259804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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https://bugs.launchpad.net/bugs/2078011
Title:
nouveau keeps showing `disp: ctrl 00000080` and crippling the system
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