I installed Nvidia drivers on my Ubuntu 20.04 PC with PREEMPT_RT kernel patch:5.15.79-rt54.For installation I used this tutorial: https://gist.github.com/pantor/9786c41c03a97bca7a52aa0a72fa9387.
After installation I'm getting this bug: bug scheduling while atomic: irq/88-s-nvidia/773/0x00000002. Bug appears sometimes every few seconds or few minutes.
I'm aware that nvidia drivers are not supported on realtime kernels but maybe anyone has found a solution to this problem or workaround? I don't have much experience with ubuntu kernels but PREEMPT_RT kernel is required to control 6DOF robotic arm that I'm working with. I also need CUDA for image processing that will determine movement of the robot. I was considering use of second PC that runs PREEMPT_RT kernel and commands robot velocities. I would make all calculations on the first machine(with Nvidia GPU and generic kernel) and transfer data over TCP/IP but I'm afraid that it would add to much latency to the system. I do apologize if I didn't provide enough information but I didn't really know what would be helpful in this situation.
I tried to install old version of nvidia drivers (520.56.06) but it didn't help.
This is Nvidia-smi output:
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 520.56.06 Driver Version: 520.56.06 CUDA Version: 11.8 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 NVIDIA GeForce ... Off | 00000000:01:00.0 On | N/A |
| N/A 38C P8 5W / N/A | 243MiB / 4096MiB | 2% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 1629 G /usr/lib/xorg/Xorg 59MiB |
| 0 N/A N/A 2154 G /usr/lib/xorg/Xorg 68MiB |
| 0 N/A N/A 2278 G /usr/bin/gnome-shell 104MiB |
+-----------------------------------------------------------------------------+
