https://bugs.freedesktop.org/show_bug.cgi?id=91278
--- Comment #18 from Andy Furniss adf.lists@gmail.com --- So after last update I ran valley again briefly and saw a few vmfaults, then a longer run and got thousands again.
without touching anything else did echo mem >/sys/power/state and then woke up.
10 minute run of valley has produced zero faults.