On Wed, 2012-12-05 at 12:43 +0000, Ian Campbell wrote: > > It seems like it is applying successfully on only the even numbered > cpus. Is this because the odd and even ones share some execution units > and therefore share microcode updates too? IOW update CPU0 also > updates CPU1 under the hood. I added some debug and it does seem like the odd CPUs have already been updated when we get to them. Ian.