Page Size Extension

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1	Want processes to co-exist Issues in sharing physical memory • Protection - A bug in one process can corrupt memory in another - Must somehow prevent process A from trashing B’s memory Add to Reading List Source URL: www.scs.stanford.edu Language: English - Date: 2010-01-28 18:33:49 Computer memory Central processing unit X86 architecture Translation lookaside buffer Memory management unit Page table Page Size Extension X86 memory segmentation Paging Memory management Computer architecture Virtual memory
2	Multiprogramming on physical memory • Makes it hard to allocate space contiguously - Convenient for stack, large data structures, etc. • Need fault isolation between processes - (Even Microsoft now seems to believe t Add to Reading List Source URL: www.scs.stanford.edu Language: English - Date: 2006-10-19 16:57:14 Computing Page table Page Size Extension Control register Page Paging Pointer X86 memory segmentation Memory management unit Virtual memory Computer architecture Computer memory