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by bregma
522 days ago
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So if I have an empty page table 0x00000001 can be referenced as a valid address? Memory mapping on all hardware with which I am familiar (which is not a small integer) is done by pages. If you have to fault on one address in a page (eg. zero page, stack canaries, heap guards) you have to fault on every single address in that page. But "memory is cheap". Until it's not. |
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