Minecraft_Client Version: 1.4.5
Minecraft_Server Version: 1.4.5
Operating System: Mac OS X (x86_64) version 10.7.2
java version "1.6.0_37"
Java(TM) SE Runtime Environment (build 1.6.0_37-b06-434-11M3909)
Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01-434, mixed mode)
After loading of world some of chunks don't loaded. One chunk intersect of rail road. Player run in minecart and stuck in missed chunk, leave minecart also impossible.
Plugins don't installed, server started with 1G ram_size.