On Wed, Jan 15, 2020 at 04:54:59PM +0100, David Hildenbrand wrote: > > > > And why would 4.9 and 4.4 care about them? > > The crashes can be trigger under 4.9 and 4.4. If we decide that we do > not care, then this series can be dropped. Do we have users of memory hotplug that are somehow stuck at those old versions that can not upgrade? Obviously this didn't work previously for them, so moving to a modern kernel might be a good reason to get this new feature :) thanks, greg k-h