Constant/abnormal load (2) with Ubuntu server


I have installed a fresh ubuntu server (kernel 4.9, fenix 1.0.2) but i have noticed that my vim3 has a constant load of 2 even with idle cpu…
I found this thread: Abnormal Load >1 with idle CPU and it’s exactly the same issue.
Removing the mali_kbase module hangs completely the card…
Any ideas on what is happening ?