Hi, can confirm that this still is a big Issue, (running a Orange PI PC) since I updatet from 4.14.18-sunxi to 4.17.7-sunxi the system is in a dead state very. before the update the system where running for month stable. Interesting is that the first notable think is that ssh stops working (aktive session is dead and new session gets a timeout), ping and the home automation stuff running there will run ~1hour more and then the system is dead complete. some log which may or may not helps here: the last log entitys are spammed with rtc errors. have changed the /etc/default/cpufrequtils to: since lower speed may helps.