PC is freezing when running glxgears after several hours

My testing system include:
+ CPU Intel celeron J1900
+ 4 gb ram
+ ssd 120gb
+ Ubuntu os with preempt rt 4.9
It's freezing when i run glxgears after several hours and i think this problem relate to realtime kernel because it happen only when i running system under realtime kernel.
If anyone have exp about this problem?

Is it a complete lockout or just a lockout of the GUI.

Can you ping or ssh into the affected machine after it freezes ?

Have you looked into any of the logs after a reboot ?

Seems like a common problem with the J1900 with or without a RT kernel.

You could try and modify the kernel command line by adding this

tks for the advice, i will try it

So my PC is laggy and not complete freezing, i still can move mouse, ssh and ping from other PC, it just drop FPS and CPU run 100%.
I modified the kernel cmd line in Grub but nothing change