Solved direwolf20 5.1.0/5.1.1

[Fij]

Hi guys
as the title says i have problem with the direwolf 5.1.x modpack

I'm having a dedicated server in my home running ubuntu server.

my server loads all the mods and seems to be ready to be played on, but im not able to connect (yes i tried with a vannila server to see if I/my brother messed something up in the router and it worked perfectly)

2013-02-21 20:14:07 [WARNING] [IC2] EnergyNet.emitEnergyFrom: ic2.core.block.generator.tileentity.TileEntityReactorChamberElectric@6449d72 is not added to the enet
2013-02-21 20:14:08 [INFO] [Minecraft] /78.72.145.8:56523 lost connection
2013-02-21 20:14:08 [WARNING] [Minecraft] Can't keep up! Did the system time change, or is the server overloaded?
2013-02-21 20:14:12 [INFO] [Minecraft] /78.72.145.8:54793 lost connection
2013-02-21 20:14:25 [WARNING] [Minecraft] Can't keep up! Did the system time change, or is the server overloaded?

i figured that my problem was some cpu problem but then i took a look at my servers cpu/ram usage and found that at that point i was only using like 1,5% of the cpu but 3 gb of ram!

i can't give you a crash report since my server does not crash.

you can see the graph here: http://www.fijworks.net/perf/

edit .oh yea i tried updating java, and im using the newest oracle java

any help is a appriciated

 

[Fij]

bump?

 

[Fij]

ok found my problem. its actually the computercraft which caused my problem
it seems that a program i wrote, blocked the server from processing anything else, even the server logins.
i bet its a rather rare server.

note. i was messing with computercraft modems

edit, i had to rename my program and restart my server for my server to work(was named startup for it to work at all times)