Peter,
we have found that they are still issuing patches at kernel.org. Instead of Rokyas patch, try this official 6.13 patch
www.kernel.org/pub/linux/kernel/projects/rt/6.13/
Let us know how it goes.
I did, I built 6.13-rc6-rt3 from kernel.org with the RT patches applied
but roykas patch was still needed.
How do I know it was needed? I stupidly thought I could create /sys/kernel/realtime
like normal file so for experimenting I did not need the patch. So I built the kernel
with the RT patch but not roykas patch first, and it failed in the expected
(POSIX non-realtime) way...
I did, I built 6.13-rc6-rt3 from kernel.org with the RT patches applied
but roykas patch was still needed.
Sounds like the issue is linuxCNC's method of detecting a RT kernel. Maybe we need to raise an issue and find a better way at the source rather than Roykas work around.
I just used the sys_fs patch for realtime, that's all that is really required.
What I've notice with the patch set you end up having to set low_latency_desktop within the context of the preempt menu and then full preempt that shows up in the main section of general setup.
Without the patch set all the fully preempt option is in the preempt section under general along with the others as per previous kernel versions.
This happens whether building an arm kernel or a x86_64 kernel.
I went thru this royka during the course of quite a few posts. The guy's right on the money.
I did, I built 6.13-rc6-rt3 from kernel.org with the RT patches applied
but roykas patch was still needed.
Sounds like the issue is linuxCNC's method of detecting a RT kernel. Maybe we need to raise an issue and find a better way at the source rather than Roykas work around.
I've seen the sys_fs patch in the kernel rt patchset. Name is sysfs__Add__sys_kernel_realtime_entry.patch
