Nima Fatemi:
I'm curious to see if there are any openwrt users here and if by any chance any of you is running a relay or a bridge on it.
There are not many OpenWRT relays since on majority of OpenWRT devices there is no enough memory (like 32-64MB RAM). Thus tor daemon runs out of memory while parsing consensus. See this discussion [1].
[1] https://lists.torproject.org/pipermail/tor-dev/2016-May/010973.html -- Ivan Markin