During runtime when a program asks for a memory block (say, by malloc()), its provided with a block of virtual addresses, say 0x10000000 to 0x1000A00 (for 32 bit). During the execution, other processes are incorporated into the main memory and pages 0x10000000-0x100000A0 are paged out. After some time, the program requests the page 0x10000000. Its incorporated back into the main memory (at the cost of some other page) but its assigned a new virtual address, but the program is oblivious of the new virtual address assigned to it and references the it using 0x10000000. How is this problem resolved ? Does it proceed in any other way ?
daudiam
-6
Junior Poster
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