* Yinghai Lu <yhlu.kernel@gmail.com> wrote:yeah - 64-bit is different here and it's not affected by the problem because there SECTION_SIZE_BITS is 27 (==128 MB chunks), MAX_PHYSADDR_BITS is 40 (== 1 TB) - giving 8192 section map entries. Once larger than 1 TB 64-bit x86 systems are created MAX_PHYSADDR_BITS needs to be increased. The only downside of the current setup on 64-bit is that it wastes 128K of RAM on the majority of systems. We could perhaps try a shift of 28, which halves the footprint to 64K of RAM, and which still is good enough to allow the PCI aperture to remain a hole on most systems. It would also compress the data-cache footprint of the sparse memory maps. (without having to use sparsemem-extreme indirection) Ingo --
| David Miller | [GIT]: Networking |
| Andi Kleen | Please pull ACPI updates |
| Greg Kroah-Hartman | [PATCH 002/196] Chinese: rephrase English introduction in HOWTO |
| Fred . | Please add ZFS support (from GPL sources) |
git: | |
| Theodore Ts'o | Any objectsions to enhancing git-log to show tags/branch heads? |
| Alex R.M. Turner | Re: Problem with a push |
| Sebastian Schuberth | git on Cygwin: Not a valid object name HEAD |
| Dan Farina | backup or mirror a repository |
| Theo de Raadt | That whole "Linux stealing our code" thing |
| Jeff Ross | U320 Drive on U160 controller? |
| Richard Stallman | Real men don't attack straw men |
| Bertram Scharpf | First install: Grub doesn't find partitions |
| Jim Winstead Jr. | Re: Root Disk/Book Disk Compatibility |
| Desmond A. Kirkpatrick | ATI GUP bug with Linux 'tickler' |
| erc | HARDWARE COMPATIBILITY LIST |
| L.G. Ted Stern | Psfrag.sty in TeX, ext2fs |
