On Wed, 26 Jul 2006 16:33:45 +0200, Franck Bui-Huu <vagabon.xyz@xxxxxxxxx> wrote: > I don't think that's correct to mark them as "reserved". Basicaly > "reserved" means that it belongs to the kernel (code or data), these > holes are not and we will end up to have wrong value as you pointed > out. > > Having quick look at sparsemem code, I don't think that it expects > to have holes inside a section, do it ? If so you probably have to > fix up your section size... Yes, for such small holes, sparsemem and flatmem is same. We can use smaller section size to save more memory, but I suppose it will be a bit slower. > > Talking about nr_kernel_pages (calculated by zones_size[] and > > zones_holes[]) and num_physpages, these values are used to determine > > sizes of some kernel data structures, it would be better to set more > > precise value for them. > > > > While large holes in a section wastes some memory, make the section > > size customizable might be a good idea. Anyone? ;-) > > > > hey, you are working in this area, aren't you ? ;) Well, not actively now since I'm comfort with 256MB section size :-) --- Atsushi Nemoto
