isolcpus=1,2,3 does not isolate on Raspberry Pi 4Bx4Gb 5.15.65-rt49/2.9 32bit

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10 Mar 2023 08:55 - 10 Mar 2023 09:19 #266276 by rmu

From what I see missing any line of the type

kernel=vmlinuz-XXXXX

and therefore the operating system is not realtime.

If you want an image that definitely works on Raspberry Pi 3 you can use the one you find here: forum.linuxcnc.org/9-installing-linuxcnc...3b-pi?start=0#260915

 
you are right, the system isn't running the preempt-rt kernel.
proper uname (except for aarch64) should be Linux raspberrypi 5.15.65-rt49-v8+ #1 SMP PREEMPT_RT Tue Sep 6 18:12:35 BST 2022 aarch64 GNU/Linux
Last edit: 10 Mar 2023 09:19 by rmu.

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