Java Error, crashing me. No idea what it means

Anyone decipher this for me? Using latest beta build of CB.

Code:

2012-05-10 15:18:30 [SEVERE] java.net.SocketException: Connection reset by peer: socket write error
2012-05-10 15:18:30 [INFO] Connection reset
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.socketWrite0(Native Method)
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.socketWrite(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.write(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.BufferedOutputStream.flush(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.DataOutputStream.flush(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.NetworkWriterThread.run(SourceFile:103)
2012-05-10 15:18:30 [SEVERE] java.net.SocketException: Connection reset by peer: socket write error
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.socketWrite0(Native Method)
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.socketWrite(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.net.SocketOutputStream.write(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.BufferedOutputStream.flush(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at java.io.DataOutputStream.flush(Unknown Source)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.NetworkWriterThread.run(SourceFile:103)
2012-05-10 15:18:30 [INFO] Zion165 lost connection: disconnect.endOfStream
2012-05-10 15:18:30 [SEVERE] java.lang.NullPointerException
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.NetServerHandler.sendPacket(NetServerHandler.java:723)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.EntityTrackerEntry.updatePlayer(EntityTrackerEntry.java:235)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.EntityTrackerEntry.scanPlayers(EntityTrackerEntry.java:276)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.EntityTrackerEntry.track(EntityTrackerEntry.java:62)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.EntityTracker.updatePlayers(EntityTracker.java:132)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
2012-05-10 15:18:30 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
2012-05-10 15:18:30 [SEVERE] Unexpected exception
java.lang.NullPointerException
    at net.minecraft.server.NetServerHandler.sendPacket(NetServerHandler.java:723)
    at net.minecraft.server.EntityTrackerEntry.updatePlayer(EntityTrackerEntry.java:235)
    at net.minecraft.server.EntityTrackerEntry.scanPlayers(EntityTrackerEntry.java:276)
    at net.minecraft.server.EntityTrackerEntry.track(EntityTrackerEntry.java:62)
    at net.minecraft.server.EntityTracker.updatePlayers(EntityTracker.java:132)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
2012-05-10 15:19:24 [INFO] Connection reset

 

It crashes your server or your client? For client, I think this is pretty usual. Just Minecraft being all messed up again.

 

Crashing server. Specifically, not bringing it down, but disconnecting users and showing a "read error" in console.

Some more info.

Windows Server 2008
Run on RAMdisk
12 gigs of RAM on server
JDK 7 x64

 

can you post the text in you run.bat

 

From what you've described here:

It looks like the server computer doesn't have fast enough upload/download speed to match with what your users are doing. Sending information from client<->server fast can cause this, and a slow upload/download speed can generate this sort of an error.

 

I cannot see that it is a bandwidth issue at all, as I only had a few people online at the time this happened. And I have been stable with 30 on at a time. I rarely use over 1-2 Mbit/s.

My startup is

Code:

@ECHO OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre7\bin\java.exe" -Xmx6G -Xms6G -jar craftbukkit.jar
PAUSE

 

Remove "-Xms6G', what that does is say startup with 6G, and dont go over 6G.

So by removing that, you say startup as low as you possibly can, but don't go over 6G (it helped me, but I don't think it'll solve the error)

 

Ahh good to know for RAM usage. Still holding out for a fix to original issue though lol its quite annoying!

 

what version of craftbukkit do you have

 

latest beta, #2175