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memory alignment is aligning variable or user defined variable acc. to processor's memory addressing strategy.
- Anonymous March 02, 2011yes,two processes can have same virtual address.
Semaphores can suffer with priority inversion where as mutex cant. secondly, semaphores can have no deadlock if function is called recursively, but mutex can suffer with deadlock in that case. Thirdly, in multithreaded environment, any thread can signal the semaphore where as in mutex who have taken the lock can only unlock it.
Yes,Malloc gives a memory aligned addresses.
MMU is memory management unit which assign virtual addresses to processes instead of physical addresses and take care of paging concept of processes.