On Fri, 14 Aug 2015 16:44:31 +0200, Tim Daneliuk <tun...@tundraware.com>
wrote:
On 08/14/2015 08:35 AM, Ronald Klop wrote:
Does the /dev/md99 device exist now? Otherwise something went wrong
when you tried adding swap. Try swapon -a without the -q.
Yes, the device exists and yes, swapon claims is is in use:
swapon -a
swapon: md99 on /usr/swap0: Device already in use
But swapinfo doesn't know about it, if it is:
swapinfo
Device 1K-blocks Used Avail Capacity
/dev/gpt/swapfs 1048576 500300 548276 48%
I don't know whether this is just an artifact of how swapinfo reports
things,
but the system acts like it's not seeing the additional swap when it is
under
heavy load.
The main culprit here, BTW, is clamav which chews through memory like
crazy
as best as I can determine, and this is a VM with only 512M of memory,
hence
the desire to increase swap space.
I tested this on my 11-CURRENT/amd64 laptop and I get this:
# grep swap /etc/fstab
/dev/gpt/swap0 none swap sw 0 0
md99 none swap sw,file=/tmp/test 0 0
# dd if=/dev/zero of=/tmp/test bs=1M count=10
# swapon -a
swapon: adding /dev/md99 as swap device
[root@sjakie /tmp]# swapinfo
Device 1K-blocks Used Avail Capacity
/dev/gpt/swap0 4193280 276744 3916536 7%
/dev/md99 10240 0 10240 0%
Total 4203520 276744 3926776 7%
Works ok for me.
Regards,
Ronald.
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