In fairness, what we have right now is 48-bit addressing, not 64-bit.
I've already run into cases of programs figuring that a "64-bit" address space is basically infinite and running out of address space by trying to have tens to hundreds of thousands of 4GB memory mappings (not necessarily backed by RAM).
In fairness, what we have right now is 48-bit addressing, not 64-bit.
I've already run into cases of programs figuring that a "64-bit" address space is basically infinite and running out of address space by trying to have tens to hundreds of thousands of 4GB memory mappings (not necessarily backed by RAM).