On Sat, Apr 20, 2019 at 12:27:23AM +0900, Akira Yokosawa wrote: > Hi Paul, > > You might have already noticed, but your fix of Figure 9.7 has > made Quick Quiz 9.20 pointless. And there remains another use of > WRITE_ONCE() in Figure 9.8 and its discussion in the text. I do have several areas half-done, don't I? I fixed this with your Reported-by, thank you! Thanx, Paul