On Tue, Apr 23, 2019 at 07:49:57PM +0300, Meelis Roos wrote: > > > ia64 (looks complicated ...) > > > > Well as far as I can tell it was not even used 12 or so years ago on > > Itanium when I worked on that stuff. > > My notes tell that on UP ia64 (RX2620), !NUMA was broken with both > SPARSEMEM and DISCONTIGMEM. NUMA+SPARSEMEM or !NUMA worked. Even > NUMA+DISCONTIGMEM worked, that was my config on 2-CPU RX2660. ia64 has a such a huge number of memory model choices. Maybe we need to cut it down to a small set that actually work. That includes fund bits like the 'VIRTUAL_MEM_MAP' option where the comment claims: # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. # VIRTUAL_MEM_MAP has been retained for historical reasons. but it still is selected as the default if sparsemem is not enabled..
