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Date:      Fri, 14 Aug 2015 08:15:26 -0500
From:      Tim Daneliuk <tundra@tundraware.com>
To:        FreeBSD Stable Maling List <freebsd-stable@freebsd.org>
Subject:   Swap Questions
Message-ID:  <55CDE9EE.5090603@tundraware.com>

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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%



Two questions:

1) Is this reasonable behavior from  a machine wiht 512M of memory and
   a 1G swap partition?  I am doing things like running clamscan and
   buildworld at the same time. That's why I tried to add space with
   a file.

2) Why doesn't the extra swap disk appear in the hostinfo output.


TIA, 
----------------------------------------------------------------------------
Tim Daneliuk     tundra@tundraware.com
PGP Key:         http://www.tundraware.com/PGP/




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