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Solution in silicon?Solution in silicon?Posted Jul 18, 2003 1:54 UTC (Fri) by tjc (subscriber, #137)In reply to: Solution in silicon? by melauer Parent article: 64GB on 32-bit systems I'm pretty sure the problem is that 32-bit x86 CPUs can only address 4GB of memory [snip] IIRC, the P2 (and up) chop 32-bit addressing into 12 bits for a 4K page, 10 bits for the "inner" page table, and 10 bits for the "outer" page table. I don't know the details, though, living further down the food chain as an application programer. :-) I don't follow the kernel lists at all (unless there's a spectacular flame war happening ;-), but has an inverted page table been discussed? Is this possible on a P[234]? That would take a performance hit right off the top, but at least it solves the huge page table problem.
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