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when a process is created using fork(). what is shared
between parent process and child process.
1.Heap 2. stack 3. shared memory segments 4. I/O handles
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Answer Posted / pradeep
this is correct but partially. there is something called COW(copy on write). stack is not copied until one of them(parent or child) tries to write into it. if the child immediately calls exec then there is not need to copy the stack at all. As practically in most of the cases child process does an exec call, this unnecessary copy of huge stack is avoided by delaying it till its written into.
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