Minecraft server randomly crashes when a chicken jockey spawns from a zombie spawner with a ticking entity error. Also, infinity arrows shot into spiders causes a ticking entity crash as well.
Edit: This also happens with spider jockeys.
Environment
Linux 16.04, i7 6700k @ 4.7ghz, 64gb RAM, 480gb SSD
Duplicated https://bugs.mojang.com/browse/MC-111650