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by yuhong 5184 days ago
It has nothing to do with PAE, but 3G/1G split I think is default on Linux.
1 comments

That does not address the 512MB of virtual address problem, which is not an issue with PAE.
Yes it is because PAE doesn't change the address space of processes. PAE let's you use more physical memory, the address space of each process is still the same, because 2^32 is still 2^32 with PAE.