warning: total configured swap (8960911 pages) exceeds maximum recommended amount (8243200 pages).
rwmaillists at googlemail.com
Thu Oct 17 15:26:20 UTC 2013
On Thu, 17 Oct 2013 15:04:50 +0100 (BST)
Anton Shterenlikht wrote:
> I'm using a 72gb swap disk.
> I've 10gb RAM
> I get this warning:
> warning: total configured swap (8960911 pages) exceeds maximum
> recommended amount (8243200 pages). warning: increase kern.maxswzone
> or reduce amount of swap.
> What is max. recommended amount based on?
> What is the danger of exceeding it?
> How should I increase kern.maxswzone?
> # sysctl kern.maxswzone
> kern.maxswzone: 0
> Do I set it to the total swap size?
> Where is kern.maxswzone described?
$ sysctl -d kern.maxswzone
kern.maxswzone: Maximum memory for swap metadata
see also loader(8)
However setting kern.maxswzone can only be used to reduce the metadata size below the default, not increase it.
n = cnt.v_page_count / 2;
if (maxswzone && n > maxswzone / sizeof(struct swblock))
n = maxswzone / sizeof(struct swblock);
n2 = n;
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