So as it stands, it does not work at all. I will continue to check another machine, and see if I can get something working.
On the MacBookAir3,1 the situation is somewhat better.The first three tree positions result in zero failures and 10 reads per second. The fourth yields zero failues and 11 reads per second, within the margin of similarity.
So, the patch appears to have no apparent effect on the 3,1 series. Now onto fixing the 1,1 behavior. Henrik
