.
A suggested root cause for the ADIRU induced upsets has its exposition at
this link
Seems to address a possibility in terms of the factors and outcomes contained in the interim report (and claims to address an area of potential anomalies that the ATSB/FAA isn't looking at)
Also appears to
not be an error addressed by the ADIRU's BITE and triple redundancy cross-checking.
.
Also accessible via:
this link
or tinyurl.com/bcgb88
.
Probably worth looking at - as they seem to otherwise have no real ideas as to cause (even for the Malaysian 777 incident)