On Mon, Oct 7, 2019 at 12:49 PM Tony Luck <tony.luck@xxxxxxxxx> wrote: > > If PSR.ac is set, we trap. If it isn't set, then model specific > (though all implementations will > trap for an unaligned access that crosses a 4K boundary). Ok. At that point, setting AC unconditionally is the better model just to get test coverage for "it will trap occasionally anyway". Odd "almost-but-not-quite x86" both in naming and in behavior (AC was a no-op in kernel-mode until SMAP). > Your patch does make all the messages go away. > > Tested-by: Tony Luck <tony.luck@xxxxxxxxx> Ok, I'll commit it, and we'll see what Al can come up with that might be a bigger cleanup. Linus