Chunks don't load/genrate
I made a new world and was swimming around with Depth Strider III boots and speed 255. When I got near the chunk boundary they wouldn't load, if after several minutes. F3-a didn't work either, nor did reloging, or lowering/raising render distance.
Environment
System.getProperty('os.name') == 'Linux'
System.getProperty('os.version') == '3.12.17-KAA'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.6.0_31'
System.getProperty('java.vendor') == 'Sun Microsystems Inc.'
System.getProperty('sun.arch.data.model') == '64'
Created Issue:
Chunks don't load/genrate
I made a new world and was swimming around with Depth Strider III boots and speed 255. When I got near the chunk boundary they wouldn't load, if after several minutes. F3-a didn't work either, nor did reloging, or lowering/raising render distance.
Environment
System.getProperty('os.name') == 'Linux'
System.getProperty('os.version') == '3.12.17-KAA'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.6.0_31'
System.getProperty('java.vendor') == 'Sun Microsystems Inc.'
System.getProperty('sun.arch.data.model') == '64'

Your Java version is out of date! Please update your Java to the latest version (1.7.0_65): http://www.java.com/en/download/.
to Mod: See in issue 64445. I have the same, when I use render distance 32. I have Win 8.1 64bit and Java 1.8.011 64bit.
I had the same issue, with java 1.7_65, on Lubuntu Linux 14.04(same core system as Ubuntu). I'm using 14w34b. This issue should be reopened.
This is a duplicate to https://bugs.mojang.com/browse/MC-64376 - Please vote for that issue and hope it gets fixed. I experience exactly the same.