Nvidia error messages - bug or not ??

Asked by Peter R

The following has been appearing since upgrading to Kubuntu 20.04

$ dmesg | grep nvidia
[ 0.855836] nvidia: loading out-of-tree module taints kernel.
[ 0.855849] nvidia: module license 'NVIDIA' taints kernel.
[ 0.871066] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 0.880885] nvidia-nvlink: Nvlink Core is being initialized, major device number 238
[ 1.014383] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 460.39 Thu Jan 21 21:49:04 UTC 2021
[ 1.015381] [drm] [nvidia-drm] [GPU ID 0x00000800] Loading driver
[ 1.015384] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:08:00.0 on minor 1
[ 12.459953] nvidia-uvm: Loaded the UVM driver, major device number 235.
[ 42.441509] caller os_map_kernel_space.part.0+0x77/0xa0 [nvidia] mapping multiple BARs

Other information ..

$ inxi -Fzx
System: Kernel: 5.4.0-66-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: KDE Plasma 5.18.5
           Distro: Ubuntu 20.04.2 LTS (Focal Fossa)
Machine: Type: Portable System: Dell product: Inspiron 3542 v: N/A serial: <filter>
           Mobo: Dell model: 0WW73H v: A16 serial: <filter> BIOS: Dell v: A16 date: 09/02/2020
Battery: ID-1: BAT0 charge: 41.0 Wh condition: 41.0/41.4 Wh (99%) model: SMP-SDI2.8 DELL FW1MN31 status: Full
CPU: Topology: Dual Core model: Intel Core i7-4510U bits: 64 type: MT MCP arch: Haswell rev: 1 L2 cache: 4096 KiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 15964
           Speed: 998 MHz min/max: 800/3100 MHz Core speeds (MHz): 1: 998 2: 998 3: 998 4: 998
Graphics: Device-1: Intel Haswell-ULT Integrated Graphics vendor: Dell driver: i915 v: kernel bus ID: 00:02.0
           Device-2: NVIDIA GM108M [GeForce 840M] vendor: Dell driver: nvidia v: 460.39 bus ID: 08:00.0
           Display: x11 server: X.Org 1.20.9 driver: modesetting,nvidia unloaded: fbdev,nouveau,vesa
           resolution: 1280x720~60Hz
           OpenGL: renderer: GeForce 840M/PCIe/SSE2 v: 4.6.0 NVIDIA 460.39 direct render: Yes
Audio: Device-1: Intel Haswell-ULT HD Audio vendor: Dell driver: snd_hda_intel v: kernel bus ID: 00:03.0
           Device-2: Intel 8 Series HD Audio vendor: Dell driver: snd_hda_intel v: kernel bus ID: 00:1b.0
           Sound Server: ALSA v: k5.4.0-66-generic
Network: Device-1: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter vendor: Dell driver: ath9k v: kernel
           port: f040 bus ID: 06:00.0
           IF: wlp6s0 state: down mac: <filter>
           Device-2: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell driver: r8169 v: kernel port: e000
           bus ID: 07:00.0
           IF: enp7s0 state: up speed: 100 Mbps duplex: full mac: <filter>
           Device-3: Qualcomm Atheros type: USB driver: btusb bus ID: 1-1.6:8
Drives: Local Storage: total: 931.51 GiB used: 251.12 GiB (27.0%)
           ID-1: /dev/sda vendor: Seagate model: ST1000LM024 HN-M101MBB size: 931.51 GiB
Partition: ID-1: / size: 16.19 GiB used: 8.72 GiB (53.9%) fs: ext4 dev: /dev/sda1
           ID-2: /home size: 894.99 GiB used: 242.40 GiB (27.1%) fs: ext4 dev: /dev/sda6
           ID-3: swap-1 size: 4.66 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda5
Sensors: System Temperatures: cpu: 52.0 C mobo: 52.0 C gpu: nvidia temp: 49 C
           Fan Speeds (RPM): cpu: 0
Info: Processes: 197 Uptime: 3h 15m Memory: 7.68 GiB used: 1.48 GiB (19.3%) Init: systemd runlevel: 5 Compilers:
           gcc: 9.3.0 Shell: bash v: 5.0.17 inxi: 3.0.38

Am using the package nvidia-driver-460 . Is this a bug or not please ?

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