swap_pager complaints but not using swap

[Dieter]

AMD64  FreeBSD 7.0  2 GiB main memory

My console says:

login: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 22, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 22, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 22, size: 4096
swap_pager: indefinite wait buffer: bufobj: 0, blkno: 22, size: 4096

pstat -sk
Device          1K-blocks     Used    Avail Capacity
/dev/ad6s10       4590208       96  4590112     0%

Wow, using a whole 96K of swap.  I don't see any disk related
complaints in dmesg.

Is this something to worry about?