On Sat, 23 Apr 2011, James Bottomley wrote: > The boot sequence got a few seconds slower because now all of the loops > over our pfn ranges actually have to skip through the holes (which takes > time for 64GB). On my rp3440, the biggest gap seems to be 265GB: dave@mx3210:~$ cat /proc/iomem 00000000-3fffffff : System RAM 00000000-000009ff : PDC data (Page Zero) 00100000-004acfff : Kernel code 004ad000-00661fff : Kernel data 40000000-4fffffff : IOVA Space 100000000-27fdfffff : System RAM 4040000000-40ffffffff : System RAM Dave -- J. David Anglin dave.anglin@xxxxxxxxxxxxxx National Research Council of Canada (613) 990-0752 (FAX: 952-6602) -- 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>