PF works on 6.0_RC2 despite error messages

[Pongthep Kulkrisada <ptkrisada%gmail.com@localhost>]

Hi All,

After cvs and built from 5.1_STABLE to 6.2_RC2,
I remained PF configuration unchanged.
And I checked that PF works very well.
But recently I've just noticed PF warning messages during boot.

-----------------------------------------------------------
Setting tty flags.
pfctl: DIOCSETSTATUSIF
...
Enabling pf firewall.
pfctl: DIOCSETSTATUSIF
/etc/rc.d/pf exited with code 1
...
Starting pflogd.
...
The following components reported failures:
        /etc/rc.d/pf
See /var/run/rc.log for more information.
-----------------------------------------------------------

Related /var/run/log
-----------------------------------------------------------
...
[running /etc/rc.d/pf_boot]
pfctl: DIOCSETSTATUSIF
...
[running /etc/rc.d/npf]
[running /etc/rc.d/pf]
Enabling pf firewall.
pfctl: DIOCSETSTATUSIF
/etc/rc.d/pf exited with code 1
...
[running /etc/rc.d/pflogd]
Starting pflogd.
-----------------------------------------------------------
(Note that I do not use npf, although it runs.)

Even if I have such warnings.
But PF still works fine. I can check if it is running.

root@netbsd:~# ps ax | grep pf
221 ?     Is   0:00.03 pflogd: [priv]
291 ?     S    0:00.98 pflogd: [running] -s 116 -i pflog0 -f /var/log/pflog (pf
667 ttyE0 R+   0:00.00 grep pf

/dev/pf is there.
I can still disable, enable, reload filtering rules.
I can also do ``/etc/rc.d/pf restart'' or whatever without any problems.
With exactly the same configuration, there is only a warning on 5.1_STABLE i.e.
pfctl: DIOCSETSTATUSIF that happens twice when booting 5.1_STABLE.
(I think, one from pf_boot and another from pf.)

Why are such warnings displayed, without any actual effects?
Any comments are highly appreciated.

Partial /etc/rc.conf
-----------------------------------------------------------
lkm=YES
pf=YES
pf_rules="/etc/pf.conf"
pflogd=YES
-----------------------------------------------------------

Partial /etc/lkm.conf
-----------------------------------------------------------
/usr/lkm/pf.o   -               -               -               -               
BEFORENET
-----------------------------------------------------------

root@netbsd:~# uname -a
NetBSD netbsd.localdomain 6.0_RC2 NetBSD 6.0_RC2 (GENERIC) #0: Wed Sep 19 
19:46:32 ICT 2012  
root@netbsd.localdomain:/usr/obj/sys/arch/i386/compile/GENERIC i386

Thanks,
-- 
Pongthep Kulkrisada
 
"UNIX is basically a simple operating system,
but you have to be a genius to understand the simplicity."
-- Dennis M. Ritchie