On Thu, 21 Apr 2011, Christoph Lameter wrote: > In 32 bit configurations some architectures (like x86) provide nodes > that have only high memory. Slab allocators only handle normal memory. > SLAB operates in a kind of degraded mode in that case by falling back for > each allocation to the nodes that have normal memory. > Let's do this: - parisc: James has already queued "parisc: set memory ranges in N_NORMAL_MEMORY when onlined" for 2.6.39, so all he needs now is to merge a hybrid of the Kconfig changes requiring CONFIG_NUMA for CONFIG_DISCONTIGMEM from KOSAKI-san and myself which also fix the compile issues, - generic code: we pull check_for_regular_memory() out from under CONFIG_HIGHMEM so that N_NORMAL_MEMORY gets set appropriately for all callers of free_area_init_nodes() from paging_init(); this fixes ia64 and mips, - alpha, m32r, m68k: push the changes to those individual architectures that I proposed earlier that set N_NORMAL_MEMORY for DISCONTINGMEM when memory regions have memory; KOSAKI-san says a couple of these architectures may be orphaned so hopefully Andrew can pick them up in -mm. I'll reply to this email with the parisc Kconfig changes for James, the generic change to check_for_regular_memory() for Andrew, and the arch-specific changes to the appropriate maintainers and email lists (but may need to go through -mm if they aren't picked up). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>