On Tue, 14 Jun 2011 03:43:47 -0700 (PDT) Hugh Dickins <hughd@xxxxxxxxxx> wrote: > In an i386 kernel this limits its information (type and page offset) > to 30 bits: given 32 "types" of swapfile and 4kB pagesize, that's > a maximum swapfile size of 128GB. Which is less than the 512GB we > previously allowed with X86_PAE (where the swap entry can occupy the > entire upper 32 bits of a pte_t), but not a new limitation on 32-bit > without PAE; and there's not a new limitation on 64-bit (where swap > filesize is already limited to 16TB by a 32-bit page offset). hm. > Thirty > areas of 128GB is probably still enough swap for a 64GB 32-bit machine. What if it was only one area? 128GB is close enough to 64GB (or, more realistically, 32GB) to be significant. For the people out there who are using a single 200GB swap partition and actually needed that much, what happens? swapon fails? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. 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>