Comment # 8 on bug 83505 from Michel Dänzer

(In reply to comment #7)
> After one week without random reboots, I think that this bug is fixed in
> 3.16.2.

That's weird though, as there are no directly related changes between 3.16.1
and 3.16.2. Can you bisect which change fixed it for you? (Note that you'll
have to reverse 'good' and 'bad' for the bisection, as git bisect can only
handle good -> bad)