> The big headache is not 1TB but 64TB which is the maximum physical RAM limit of the Linux kernel / x86-64 architecture. It sounds like you know what you're t

> The big headache is not 1TB but 64TB which is the maximum physical RAM limit of the Linux kernel / x86-64 architecture. It sounds like you know what you're talking about, so I'm sure it was inadvertent that you wrote "physical RAM limit of the Linux kernel". It's primarily the x86-64 architecture and 5-level paging is coming which extends the linear address space to 57 bits (128 PiB) and the physical address space up to 52 bits (4 PiB). Still, one wonders how long it will take for that to be inadequate. https://software.intel.com/sites/default/files/managed/2b/80/5-level_paging_white_paper.pdf https://software.intel.com/sites/default/files/managed/2b/80...