Hi @omria,
I’m running the latest kernel (6.12.25) and 4.20, with the exception of the DKMS driver which was 4.19, was the first version I installed as it was the current version in the repo. However, after doing further research I found out about the kernel compatibility issues with 4.20. So yesterday I downgraded everything to 4.19 (keeping the Linux kernel and everything else as-is) and that resolved the issue with models hanging etc. So now my only outstanding issue is finding a compatible version of rpicam-apps-hailo-postprocess as that was uninstalled due to the downgrade.
Your post from February ( Critical: HailoRT 4.20 Compatibility Issue with RPi Kernel - Temporary Fix Available ) plainly explained the issue and how to temporarily work around it. It took me a while to come around to the fact that this is still an/the issue. It would probably be helpful if that post were pinned with an explanation that it’s still necessary as I can’t see how any new Raspberry Pi user, like myself last week, won’t run into this. Effectively the Raspberry Pi repos are distributing broken packages for anyone wanting to run the models from the Hailo github repo.