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I'm trying to do this with an Rpi 4 and I'm seeing the same thing. I can find the PID of latency-histogr. Then run chrt -p PID which reports that current scheduling policy as SCHED_OTHER. Then run chrt -f -p PID which does change the scheduling policy to SCHED_FIFO.

But all I did (hoped was necessary) was to update the kernel. sudo rpi-update next, thne reboot. Must one actually build the kernel with a patch? That seems odd if the kernel offers full RT support.

Oh, it's part of the Kernel files isn't it. Ugh.

Roy,

I've updated the kernel to 6.12.8 on an Rpi 4, and I'm seeing pretty much the same behavior. However, I'm not finding the file you patched anywhere on the system? sudo find / -print | grep ksysfs finds nothing.

Thanks,

Gene

What I am trying to do: in a 1" x 1" square workpiece, cut a .68" ID hole starting at (.16",.16").  The mill is .125" nminal diameter.  It is actually .122".

The gCode I tried, producing a hole that is too small:

g1 x.16 y.16 f25
g1 z0 f25
g2 i.-34

Update

Motherboard won’t even post to bios.

Cf card was empty.

I just ordered a 7i96s

If I have to build a new system I’m gonna get a better computer.

Lcvette,

Thanks for the help.

I'm unsure why the file names on the forms now have the 2025-01-09 attached. It must have been added when I uploaded them. They match what I have in the ini file except for the postgui file name error. I thought I had changed that one. I have made the suggested changes and still can't launch Probe Basic. getting the error "Can't execute DISPLAY program probe_basic  "