Unless you really know what are you doing.
To synchronize the clock and fix a minimal time shift I was detecting, I followed the idea of the TurtleBot2 to use chrony to fix that Chrony is a little daemon that connects to your linux clock or hwclock and detect shifts. For some reason this lead to total chaos on the amosero.
I suppose chrony hasn’t been build for multicore dynamically speeded processors like the A20, which is why the shifting has been erratic and up to 2 seconds per minute.
sudo apt-get remove chrony
Fixed all timing errors on the [amazon &title=CubieTruck&text=CubieTruck]. Also it’s a bit disturbing how little changes can inflict complex setups.