I have 6 GB, but i can only allocate 1,5 GB, and im using Sphax x64, thats why, but 1,5 GB is the highest I can allocate, before I used to allocate 4 Gigs.
Launcher/pack Version:0.5.4.7
Operating System: Windows 7 Home Premium
Version of Java: 64 Bits
Description of Problem: Minecraft freezes after I launch the game or after i join a server, it takes some time before i freeze online, i may get 30 secs if im lucky.
Error Messages:None, game just freezes and tells me that Java doesnt respond.
Link to pastebin of log: http://pastebin.com/iZkdmMjW