// Issue #27731.
						if isEAGAIN(err) {
							return
						}
						fmt.Printf("iteration %d: %v\n", j, err)
						os.Exit(1)
					}
				}(j)
				signal.Stop(c2)
			}
		}()
	}
	wg.Wait()

	fmt.Println("OK")
}

// isEAGAIN reports whether err is an EAGAIN error from a process execution.
func isEAGAIN(err error) bool {
	if p, ok := err.(*fs.PathError); ok {