Swap Questions
Warren Block
wblock at wonkity.com
Fri Aug 14 17:40:05 UTC 2015
On Fri, 14 Aug 2015, Tim Daneliuk wrote:
> I just built a 10.2 machine on a cloud-based VPS (Digital Ocean) that has
> 512M of memory and 1G of swap partition. I am seeing a ton of errors like
> this:
>
> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(10): failed
> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(14): failed
> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(11): failed
> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(6): failed
> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(7): failed
> Aug 14 00:01:22 myhost last message repeated 2 times
>
>
> So, I added this to fstab (after creating /usr/swap0):
>
> md99 none swap sw,file=/usr/swap0 0 0
>
> And then did this:
>
> swapon -aq
>
>
> But, when I do a swapinfo, all I can see is the "disk" swap partition
> that comes standard with the VPS:
>
>
> Device 1K-blocks Used Avail Capacity
> /dev/gpt/swapfs 1048576 456572 592004 44%
Add the -L (late) option to swapon. How this works might differ between
10-Release, 10-Stable, and 11.
Incidentally, md99 does not have to be literal, it's just meant to get
the md device number up out of the way of common interactive usage of
mdconfig.
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