http://pastebin.com/dQ6Q7dt0
buildcraft-7.1.8

BC is now up to 7.1.11, update and try to reproduce.

Updated. Problem still exists. :(

http://pastebin.com/PwvB7azv

I doubt that's a memory leak. How much memory have you allocated for minecraft?

@psxlover 2GB
java x64

The problem arises if the approach to place with the mechanisms and pipes ... just can not say,client hangs and get this error

@AEnterprise This is repeated for all, even the one allocated more than 4 GB of RAM

this isn't a memory leak at all

[18:00:10] [Client thread/ERROR] [FML/]: There was a critical exception handling a packet on channel BC-CORE
java.lang.OutOfMemoryError: Java heap space

increase the ram (and with that heap size) allocated to MC and it should work, java is just running out of memory

did you try increasing the permagen memory then? that could also trigger this error

@AEnterprise PermGen not work on java 8

You should post your fml.log.
Also make sure you are using a 64-bit Java.

https://www.dropbox.com/s/hyqg1e070mgjo2l/fml-client-latest.log?dl=0

alright eighther java 8 is derping up it's heap size or there is a bug in the BC networking code where it tries to read read data from the message buffer that isn't there

I rolled back to version 7.0.23, and this problem is not there, this is clearly a mistake versions 7.1. *

Alright, I shall look into it.

@AEnterprise permgen space was removed in java 8.

@XFactHD i didn't know he was using java 8, doesn't matter anyways as i suspect there is something wrong with a gate sync package

@AEnterprise no problem, just as an information because you thought that java had derped. 😊

Confirmed has to do with the bots. I noticed after taking a sample while the mod was present there is a process leak that takes about 40 mins to be really visible. Sorry I will attempt to give your greater details. I debug for other modders since I have no coding talent I like to make myself useful! On Another note anyone know where techbrews github is aka the journeymap mod? They have some very clear issues but I am not sure what medium to report them.

I was having the same problem, created new world in single player and it say [shutting down internal server] a fetal error occurred and I minimal down the version and still happens

Okay so this has a massive memory leak feel free to fix it. Let me know when its dealt with.

When you are near with robot, server will begin sending packets, but client can`t read them. And so will continue till memory is run out => crash ^_^

Might be worth attaching a profiler (such as JProfiler or others) and seeing, what's leaking the memory.

@tambry I can't any more. I on the old version and a place where occurred leakage of memory is already forgotten

@Myst1k Well, I was suggesting that for those, who are investigating or looking into fixing the memory leak.

I can take a profile snapshot if it pleases the court :D It may also help if you added a build craft chunk profiler and figure out if it has something do with oil veins as well. I noticed that is when the game becomes unplayable. All a player does is stand in a oil chunk and the game almost just freezes. "Just some suggestions from a guy who knows nothing about coding but everything about investigation and paying attention." :P

Re-open if anything new pops up.