The S4 binary seems to run ok (actually it seems to give quite a boost in hash rate), but the GH/s (5s) field is 0 (the avg field looks right) and the discarded field is really high... p2pool says 1.34THS/s and 5.5% discard rate, and the temperature seemed stable. I've switched back to the original binary for now... it seems like it was running too fast and if the GH/s field isn't working, I'm not sure that I trust the rest of the stats on the miner.
ckolivas (or anyone else), any opinion on running the s4 binary on a c1?
Obviously the architecture is like an S4 then (beaglebone not mips), not an S3.
Fields are different due to random api changes that bitmain felt obliged to do breaking compatibility so it's harmless (but missing).
Huge discards is due to the ridiculous default queue that bitmain set on these devices to 8000 or so. Change it to zero.