Fork-join_none not working

In reply to hk123:

So something like:


task test_code();
  automatic int i=15;

  fork
    while (i>0) begin
      #5;
      $display("%t: val=%d", $time(), i);
      i--;
    end
    while (i>0) begin
      #5;
      $display("%t: val=%d", $time(), i);
    end
  join
endtask

module top();
  initial begin
    test_code();
  end
endmodule