Indeed, while removing custom rendezvous code and switching toYes. It's single CPU compiled with !CONFIG_SMP. I'm compiling w/ this patch right now.
stop_machine, commit 192d8857427d "x86, mtrr: use stop_machine APIs
for doing MTRR rendezvous" completely dropped mtrr setting code on
!CONFIG_SMP.
Anders, if your kernel didn't have SMP turned on, can you please
verify the following patch fixes the problem?