I followed these instructions in order to install RT extension for RPI 64bits:
64bit RT Kernel Compilation for Raspberry Pi 4B
The procedure works, I arrived at the end and the new kernel seems activated, but not theRT extension!I selected the version 5.15.31 and now "uname -a" returns:
Linux raspberrypi 5.15.30-rt38-v8+ #1 SMP PREEMPT Mon Mar 28 01:46:41 CEST 2022 aarch64 GNU/Linux
As you can see, it still PREEMPT but not with RT ..What can happened?Can you help me to activate real-time extension?
ThanksByeAndrea