Errors at reboot time

[croak]

I just upgraded from a Netgate Hamakua to an SG-4860 with an Intel 130GB mSata SSD.  Both systems are running pfSense 2.2.2.  All appears to be working, except on each reboot I see the following message repeated 10 times on the serial console:

miniupnpd[40859]: sendto(udp_shutdown=-1): Bad file descriptor

I wondered if this might be caused by a bad SSD, so I swapped the SSD for a Samsung SSD and tried again.  Same behavior at reboot.

Anyone know what's causing this?

[cmb]

Just log noise, safe to ignore.

[croak]

OK, many thanks.