Real-Time Kernel with Orange Pi 4 LTS

@roya
I gave that same 6.12-rc7 image some more test , trying to pinpoint where the glitches come from , for the sake of learning , an i do got this dust collector opi4 ...
Stumble upon the linuxcnc-rio guy , wow , still got 80 pages of post to read + his git .
Back to your 6.12rc7 , tried the 3 deb packages you've post on another image , the headers deb is corrupted by te way .
With same -1Gb img , stopping some unused .services , I do get ''stable'' shutdown now , isolating 3 last cores ,
no impressive latency results of course , but a usable fast enough(no lag) jwm desktop ,no hang ,no oo's , i'll hook up the 7i92 to the bob with it , the opi4/your 6.12rt as a ''one at the time'' purpose job and come back , after reading more about the rio .
Kernel 6.12 is young , worth testing it , opi4 may not be the best sbc candidate , not to mention xulong support , or worse their forum !!!
Thanks again , no rush ,i'll be back .
PJ
edit ; still some random kernel panic on shutdown ,i will try recompiling the dts for opi4 to see if it goes somewhere..

royka wrote:

Perhaps something wrong with the kernel config? You could try to install the kernel deb that I uploaded to see if that helps. Otherwise you might need to install more software, just install a complete desktop will be the fastest route to find out.
 
from then I tried so much and still couldn't compiled a real-time image which linuxcnc be installed and its latency shows up.
Could you please guide me after placing patch (patch-6.6.63-rt43) in the /patch/kernel/archive/rockchip64-6.6 and configuring fully preemption option, what changes do I need to do?

Despite all my efforts, I was unable to successfully build a real-time version of Armbian.
Since I need a lightweight operating system, my review of the available Armbian versions showed that most of them have high latency and noticeable lag.
I am looking for a build of Armbian similar to the version provided for Raspberry Pi, which is both lightweight and optimized, with excellent latency performance.
Please help me to get through this.

Hossein74Majidi wrote:

Despite all my efforts, I was unable to successfully build a real-time version of Armbian.

Same here , mainly focusing on kernel 6.12 .
Armbian forum could be a better choice as where to ask for compiling help .
opi4's should be some ok sbc to get decent latency , as some geeks & nerds do it
on less powerful sbc !!
Compiling , for me , often been a kind of hit-and-miss intimidating affair , despite it seems so obvious to some .

Did succeed compiling armbian minimal img with a patch 6.12.5 rt preempt , installed cinnamon and linuxcnc .. oh , sh!t ,forgot to patch it rt-preempt_FULL.. my opinion on compiling did not change , it just add more my already bowing respects for developpers .