Thanks. I was about to ask if the minimum java requirements are listed anywhere. Previous releases have been fine under 6.
I've upgraded to oracle/sun 1.7.0_17 and things have been stable for a few hours.
I failed to mention this in the original report, but CPU utilization is also very high in this release and continues to be so under 1.7.0_17. I see 40-50% CPU on one 3Ghz i7 950 core with 2 players, and 100% for three or more. At some point (usually a few hours play) block breaking lag is very bad, does not recover even when players leave, and I'm forced to restart the minecraft server.
I will attach crash dumps if the seg faults continue.
So... what are the chances this is working as designed? To be honest, I find this really useful as is. It allows you to place custom mobs and not worry about them despawning or wandering off until it spots a player. Very useful for custom and adventure maps.
Just confirming that 14w34b fixes this. Thanks for the fix!