On 10/22/2012 02:29 PM, Eric W. Biederman wrote: >> >> As I said, I thought Fenghua tried that but it didn't work, experimentally. > > Fair enough. You described the problem with clearing bit 8 in a weird > way. > > If the best we can muster are fuzzy memories it may be worth revisiting. > Perhaps it works on enough cpu models to be interesting. > It isn't fuzzy memories... this was done as late as 1-2 months ago. I just don't know the details. Fenghua, could you help fill us in? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.