This gets at an important point: the permissions guarding a page of memory are associated with the virtual address used to access that page, not the physical frame that backs the page. Indeed the notion of memory permissions is purely a consideration of virtual memory and does not pertain to physical memory.
10:27, 11 марта 2026Ценности
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While sellers of machines like word processors hyped up the potential boost to productivity – up to 150 percent increase in secretarial output! – most sensible observers saw little prospect of deep and lasting change for secretaries from computerisation. “The variety of the tasks and the social relations on the job have led to little labor displacement, and little is likely in the future,” concluded the National Academies report, comparing secretaries to nurses in their indispensability.
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Fine-grained Working Directory Inheritance Controls