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Hardware interview practice

Reason about fork join_none and wait fork

EasySystemVerilogSystemVerilog

One parent process launches three child threads with fork...join_none and later executes wait fork. What happens?

Choose one

Answer choices

  1. A. The parent continues at join_none, then wait fork blocks until all outstanding children spawned by that parent finish.
  2. B. The parent blocks at join_none until one child finishes.
  3. C. join_none kills every child as soon as the parent reaches the next statement.
  4. D. The parent continues at join_none, then wait fork returns when the first child finishes.