Woke up to this...help ideas?

Code:

2011-04-10 23:57:44 [INFO] Chunk (30, -25) stored at  (27, -27)
2011-04-10 23:57:44 [SEVERE] java.lang.Throwable
2011-04-10 23:57:44 [SEVERE]     at org.bukkit.craftbukkit.util.LongHashtable.get(LongHashtable.java:32)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.ChunkProviderServer.b(ChunkProviderServer.java:112)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.c(World.java:202)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.i(World.java:1442)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.h(World.java:1406)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:359)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.ThreadServerApplication.run(SourceFile:375)
2011-04-10 23:57:44 [INFO] Chunk (30, -25) stored at  (27, -27)
2011-04-10 23:57:44 [INFO] net.minecraft.server.Chunk
2011-04-10 23:57:44 [SEVERE] java.lang.Throwable
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.ChunkProviderServer.b(ChunkProviderServer.java:120)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.c(World.java:202)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.i(World.java:1442)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.World.h(World.java:1406)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:359)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
2011-04-10 23:57:44 [SEVERE]     at net.minecraft.server.ThreadServerApplication.run(SourceFile:375)

From what I can tell it is a world file error but deleting the world and starting fresh did not help the error came right back any thoughts?

Ubuntu Lucid
Opteron x2 2Ghz
2gb

Bukkit build 670

Essentials + Spawn "only"
HeroChat
iConomy + MySQL
World Edit/Gaurd
Permissions + AssignPermissions
Dynmap
Levelcraft
LocalShop
Vanish

 

[ADMIN] Chunkster

 

What happened is your server crashed because loaded chunks are not being released from memory. When the server crashed the currently loaded chunks were not saved appropriately. When the server restarted it started spamming the error you have posted. For more discussion on this topic and why I am making this claim view this post: http://forums.bukkit.org/threads/constant-crash.12308/