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The hazards of 32/64-bit compatibilityThe hazards of 32/64-bit compatibilityPosted Sep 23, 2010 17:06 UTC (Thu) by nelhage (subscriber, #59579)In reply to: The hazards of 32/64-bit compatibility by nix Parent article: The hazards of 32/64-bit compatibility
What is meant is the top ~2 billion (2^31) addresses. That is to say, any address accessible via a 31-bit offset from the top of the kernel address space.
The expression "top 31 bits of kernel address space" is a bit jargony, but I suspect most kernel developers would get what it means without thinking too hard.
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The hazards of 32/64-bit compatibility Posted Oct 3, 2010 23:00 UTC (Sun) by nix (subscriber, #2304) [Link]
I thought I knew what it meant, too, but the more I thought about it the more the meaning slipped away from me.
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