| 11. | "' PaX "'is a patch for the Linux kernel that implements least privilege protections for memory pages.
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| 12. | Physical memory pages are " colored " so that pages with different " colors " have different positions in CPU cache memory.
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| 13. | However, on the 80386, with its paged memory management unit it is possible to protect individual memory pages against writing.
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| 14. | Otherwise the key in the PSD had to match the lock in the access register in order to reference the memory page.
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| 15. | However, it can open two memory pages at once, which simulates the dual-port nature of other video RAM technologies.
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| 16. | Below is the extendible hashing algorithm in Python, with the disc block / memory page association, caching and consistency issues removed.
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| 17. | The operating system intercepts the page fault, loads the required memory page, and the application continues as if no fault had occurred.
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| 18. | While not directly linked, Kernel-based Virtual Machine ( KVM ) can use KSM to merge memory pages occupied by virtual machines.
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| 19. | The mapping in the upper and lower half of the memory space is to the same physical memory page, and so does not double RAM usage.
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| 20. | To understand the problem, consider a CPU with a 1 MB physically indexed direct-mapped level-2 cache and 4 KB virtual memory pages.
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