I'm trying to put together a modpack but I keep getting this log spam (it also appears to crash my game frequently), it appears to be to do with world saving and it these same lines of text appear multiple times a second, they are as follows:
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] net.minecraft.world.MinecraftException: The save is being accessed from another location, aborting
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.storage.SaveHandler.func_75762_c(SaveHandler.java:101)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.World.func_72906_B(World.java:4078)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_75816_a(AnvilChunkLoader.java:120)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.gen.ChunkProviderServer.func_73242_b(ChunkProviderServer.java:232)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.gen.ChunkProviderServer.func_73156_b(ChunkProviderServer.java:329)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:181)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:657)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
[13:54:35 INFO]: Client> 2013-10-30 13:54:35 [iNFO] [sTDERR] at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
If anyone can help, it would be very much appreciated, I can't tell if this is a Forge bug or a bug in a mod I have installed.
Here's the full log (have fun reading that!) (It's over 500kb so I can't put it on pastebin): https://drive.google.com/file/d/0B3-RxJa-bmqAUGJoR3lfNDMwc0E/edit?usp=sharing
Note: This happens with both the recommended version of forge and the latest version. I'm using MC 1.6.4