On Mon, 13 Jun 2016 15:06:47 +0200 Peter Zijlstra <[email protected]> wrote:
> On Mon, Jun 13, 2016 at 01:22:30PM +0200, Heiko Carstens wrote: > > Yes, and actually we are all virt/LPAR always, so this is unfortunately not > > very easy to do. And yes, I do agree that for the 1:1 case it most likely > > would make sense, however we don't have any run-time guarantee to stay 1:1. > > One option would be to make it a boot option; such that the > administrator has to set it. At that point, if the admin creates > multiple LPARs its on him. Unfortunately not good enough. The LPAR code tries to optimize the layout at the time a partition is activated. The landscape of already running partitions can change at this point. To get around this you would have to activate *all* partitions first and then start the operating systems in a second step. And then there is concurrent repair which will move things around if a piece of memory goes bad. This happens rarely though. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.
