> I'll try Milton's suggestion to pre-allocate the memory early. It seems > that should work as long as nothing else before the hot-plug mem is added > needs a large chunk.
Hello. Geoff-san. Sorry for late response. Could you tell me the value of the following page_size calculation in vmemmap_populate()? I think this page_size may be too big value. ------ int __meminit vmemmap_populate(struct page *start_page, unsigned long nr_pages, int node) : : unsigned long page_size = 1 << mmu_psize_defs[mmu_linear_psize].shift; : ------- In addition, I remember that current add_memory() is designed for only 1 section's addition. (See: memory_probe_store() and sparse_mem_map_populate(). they require only for 1 section's mem_map by specifing PAGES_PER_SECTION.) The 1 section size for normal powerpc box is only 16MB. (IA64 -> 1GB, x86-64 -> 128MB). But, if my understanding is correct, PS3's add_memory() requires all of total memory. I'm afraid something other problems might be hidden in this issue yet. (However, I think Milton-san's suggestion is very desirable. If preallocation of hotadd works on ia64 too, I'm very glad.) Thanks. -- Yasunori Goto -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/