On Tue 17-07-18 13:46:43, David Rientjes wrote: > On Tue, 17 Jul 2018, Baoquan He wrote: > > > We can still use 'kernelcore=mirror' or 'movable_node' for the usage > > of hotplug and movable zone. If somebody shows up with a valid usecase > > we can reconsider. > > > > We actively use kernelcore=n%, I had recently added support for the option > in the first place in 4.17. It's certainly not deprecated. > > commit a5c6d6509342785bef53bf9508e1842b303f1878 > Author: David Rientjes <rientjes@xxxxxxxxxx> > Date: Thu Apr 5 16:23:09 2018 -0700 > > mm, page_alloc: extend kernelcore and movablecore for percent What kind of functionality do you need to not depend on this knob? I mean it is a gross hack and you are basically working around fragmentation issues. ZONE_MOVABLE doesn't seem to be a long term solution here IMHO. -- Michal Hocko SUSE Labs
