Re: [Lhms-devel] [RFC] fix for hot-add enabled SRAT/BIOS and numa KVA areas

Dave Hansen
2004-11-17T17:12:22Z

On Tue, 2004-11-16 at 18:37, keith wrote:
> The numa KVA code used the node_start and node_end values (obtained
> from the above memory ranges) to make it's lowmem reservations. The
> problem is that the lowmem area reserved is quite large. It reserves
> the entire a lmem_map large enough for 0x1000000 address space. I don't
> feel this is a great use of lowmem on my system :)

It does seem silly to waste all of that lowmem for memory that *might*
be there, but what do you plan to do for contiguous address space (for
mem_map) once the memory addition occurs? We've always talked about
having to preallocate mem_map space on 32-bit platforms and by your
patch it appears that this isn't what you want to do.

-- Dave