My Ubuntu 15.10 hangs while copying files and at some point even the cursor freezes. It's annoying.
In this bug report, a saw a work ground, which consists in modifying dirty_ratio settings, this way:
vm.dirty_background_ratio = 5 vm.dirty_ratio = 10
in /etc/sysctl.conf and running sysctl -p
It works! But is it safe? Could this get my files corrupted or something else? Thanks!