I have uploaded a world to the following URL: http://www.sendspace.com/file/mkrwx9
teleport to 166 7 45 (apologies, it may be -166 7 45) or possibly any Extreme Hills+ M biome and you will experience the game freezing lag every few seconds.
This world was originally generated by 1.7.4 and has always been used on a dedicated server, the lag affects both the client and the server (as the server complains about losing ticks)
There is nothing output to the console, the whole thing freezes up. The last thing displayed in the console will be whatever was displayed prior to the crash.
Perhaps it's my world then.
Additionally, I've now discovered than an ender farm in The End that was built under 14w02c is causing the server to completely lock up if anyone visits it.
Should I attach my game world? if so, please let me know how to go about doing so.
I am beginning to wonder whether the issue I'm seeing is the same as what others are reporting.
What I basically experience are lag zones - places in the game where simply being there causes the game to completely freeze up for several seconds, unfreeze for a few, rinse and repeat. I don't get any crashes, the game just locks up and eats CPU cycles like it's trying to process something.
Whenever I'm in a lag zone, it impacts the server too and causes messages like this:
[07:26:33 WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9710ms behind, skipping 194 tick(s)