> It is worth experimenting with but the big question would be, > if it still avoids the very expensive "memmap_init_zone" and > it's sub-functions using huge expanses of memory. I'll do some > experimenting as soon as I can. Our 32TB system is being > brought back to 16TB (we found a number of problems as we > get closer and closer to the 64TB limit), but that's still > a significant size. According to Intel SDM, CPU could support 52bits physical addressing. So how linux kernel will handle it? as we only have 48bits virtual addressing. Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html