The 5.8.0-20.21 reliably trips an Oops on startup when initializing the nouveau driver.
[ 221.032875] nouveau 0000:07:00.0: unknown chipset (170000a1)
[ 221.039893] nouveau 0000:07:00.0: unknown chipset (170000a1)
[ 221.046328] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 221.054098] #PF: supervisor read access in kernel mode
[ 221.059830] #PF: error_code(0x0000) - not-present page
[ 221.065559] PGD 0 P4D 0
[ 221.068383] Oops: 0000 [#1] SMP NOPTI
[ 221.072469] CPU: 32 PID: 1627 Comm: kworker/32:1 Not tainted 5.8.0-20-generic #21-Ubuntu
[ 221.081497] Hardware name: NVIDIA DGXA100 920-23687-2530-000/DGXA100, BIOS 0.25 06/30/2020
[ 221.090729] Workqueue: events work_for_cpu_fn
[ 221.095865] RIP: 0010:nvkm_udevice_info+0x180/0x340 [nouveau]
[ 221.102277] Code: 10 49 89 45 08 4d 85 c9 74 10 48 85 c0 74 0b 41 8b 51 70 48 29 d0 49 89 45 10 49 8b 86 c0 00 00 00 49 8d 7d 18 ba 10 00 00 00 <48> 8b 30 e8 58 bb ff d5 49 8b 76 28 49 8d 7d 28 ba 40 00 00 00 e8
[ 221.123232] RSP: 0018:ffffa7c9dd153b70 EFLAGS: 00010246
[ 221.129058] RAX: 0000000000000000 RBX: 0000000000000068 RCX: 00000000000000c6
[ 221.137020] RDX: 0000000000000010 RSI: ffff994808386320 RDI: ffff994808386338
[ 221.144979] RBP: ffffa7c9dd153ba0 R08: 0000000000000000 R09: 0000000000000000
[ 221.152939] R10: 0000000000000088 R11: 0000000000000000 R12: ffff994808245680
[ 221.160900] R13: ffff994808386320 R14: ffff99483377f800 R15: 0000000000000000
[ 221.168862] FS: 0000000000000000(0000) GS:ffff99484e000000(0000) knlGS:0000000000000000
[ 221.177890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 221.184299] CR2: 0000000000000000 CR3: 000000b23ac0a000 CR4: 0000000000340ee0
[ 221.192259] Call Trace:
[ 221.195049] ? nvkm_object_init+0x8d/0x110 [nouveau]
[ 221.200669] nvkm_udevice_mthd+0x51/0xb0 [nouveau]
[ 221.206073] nvkm_object_mthd+0x1a/0x30 [nouveau]
[ 221.211373] nvkm_ioctl_mthd+0x65/0x70 [nouveau]
[ 221.216574] nvkm_ioctl+0xf0/0x190 [nouveau]
[ 221.221418] nvkm_client_ioctl+0x12/0x20 [nouveau]
[ 221.226818] nvif_object_ioctl+0x4e/0x60 [nouveau]
[ 221.232213] nvif_object_mthd+0x9f/0x150 [nouveau]
[ 221.237609] ? nvif_object_init+0x10a/0x1a0 [nouveau]
[ 221.243294] nvif_device_init+0x4f/0x60 [nouveau]
[ 221.248618] nouveau_cli_init+0x199/0x450 [nouveau]
[ 221.254127] nouveau_drm_device_init+0x54/0x2d0 [nouveau]
[ 221.260215] nouveau_drm_probe+0x132/0x1f0 [nouveau]
[ 221.265747] local_pci_probe+0x48/0x80
[ 221.269926] work_for_cpu_fn+0x1a/0x30
[ 221.274107] process_one_work+0x1e8/0x3b0
[ 221.278577] worker_thread+0x218/0x370
[ 221.282759] kthread+0x12f/0x150
[ 221.286357] ? process_one_work+0x3b0/0x3b0
[ 221.291023] ? __kthread_bind_mask+0x70/0x70
[ 221.295788] ret_from_fork+0x22/0x30
[ 221.299773] Modules linked in: nouveau(+) mxm_wmi wmi video nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua amd64_edac_mod edac_mce_amd amd_energy kvm_amd kvm efi_pstore rapl ipmi_ssif input_leds cdc_ether usbnet mii ccp k10temp acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler mac_hid sch_fq_codel 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 multipath linear mlx5_ib ses enclosure hid_generic usbhid uas hid usb_storage ib_uverbs ib_core crct10dif_pclmul ast crc32_pclmul drm_vram_helper ghash_clmulni_intel drm_ttm_helper aesni_intel ttm drm_kms_helper crypto_simd syscopyarea sysfillrect cryptd glue_helper sysimgblt fb_sys_fops mlx5_core igb cec mpt3sas pci_hyperv_intf dca raid_class nvme rc_core i2c_algo_bit scsi_transport_sas tls xhci_pci nvme_core mlxfw drm xhci_pci_renesas i2c_piix4
[ 221.389734] CR2: 0000000000000000
[ 221.393431] ---[ end trace f0b36cab4e2bf100 ]---
[ 222.034293] RIP: 0010:nvkm_udevice_info+0x180/0x340 [nouveau]
[ 222.034300] Code: 10 49 89 45 08 4d 85 c9 74 10 48 85 c0 74 0b 41 8b 51 70 48 29 d0 49 89 45 10 49 8b 86 c0 00 00 00 49 8d 7d 18 ba 10 00 00 00 <48> 8b 30 e8 58 bb ff d5 49 8b 76 28 49 8d 7d 28 ba 40 00 00 00 e8
[ 222.061663] RSP: 0018:ffffa7c9dd153b70 EFLAGS: 00010246
[ 222.067491] RAX: 0000000000000000 RBX: 0000000000000068 RCX: 00000000000000c6
[ 222.075450] RDX: 0000000000000010 RSI: ffff994808386320 RDI: ffff994808386338
[ 222.083409] RBP: ffffa7c9dd153ba0 R08: 0000000000000000 R09: 0000000000000000
[ 222.091369] R10: 0000000000000088 R11: 0000000000000000 R12: ffff994808245680
[ 222.099329] R13: ffff994808386320 R14: ffff99483377f800 R15: 0000000000000000
[ 222.107290] FS: 0000000000000000(0000) GS:ffff99484e000000(0000) knlGS:0000000000000000
[ 222.116316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 222.122723] CR2: 0000000000000000 CR3: 000000b23ac0a000 CR4: 0000000000340ee0
---
ProblemType: Bug
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 1 22:36 seq
crw-rw---- 1 root audio 116, 33 Oct 1 22:36 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu48
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.10
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: NVIDIA DGXA100 920-23687-2530-000
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-20-generic root=UUID=57d67f63-474e-4352-88e2-c29fd5276a03 ro console=ttyS1,115200n8 iommu=pt modprobe.blacklist=nouveau
ProcVersionSignature: Ubuntu 5.8.0-20.21-generic 5.8.10
RelatedPackageVersions:
linux-restricted-modules-5.8.0-20-generic N/A
linux-backports-modules-5.8.0-20-generic N/A
linux-firmware 1.190
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: groovy uec-images
Uname: Linux 5.8.0-20-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-09-30 (1 days ago)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 06/30/2020
dmi.bios.release: 0.25
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0.25
dmi.board.asset.tag: 00000000000000000000000000000000
dmi.board.name: DGXA100
dmi.board.vendor: NVIDIA
dmi.board.version: 555.Z5601.D001
dmi.chassis.asset.tag: 00000000000000000000000000000000
dmi.chassis.type: 23
dmi.chassis.vendor: NVIDIA
dmi.chassis.version: 920-23687-2530-000
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0.25:bd06/30/2020:br0.25:svnNVIDIA:pnDGXA100920-23687-2530-000:pvrv1.0:rvnNVIDIA:rnDGXA100:rvr555.Z5601.D001:cvnNVIDIA:ct23:cvr920-23687-2530-000:
dmi.product.family: DGX A100
dmi.product.name: DGXA100 920-23687-2530-000
dmi.product.sku: Default string
dmi.product.version: v1.0
dmi.sys.vendor: NVIDIA
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1898130
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.