qmail-smtpd /w rblsmtpd causing load avg 9/9/9

[Robert Wojciechowski Jr.]

Hello,

I am using qmail from tcpserver, with the line:

echo -n "(qmail-smtpd via tcpserver) "
    supervise /var/qmail/supervise/tcpserver-qmail-smtpd \
        /usr/local/bin/tcpserver -c 10 -u $QMAILDUID -g $NOFILESGID \
        -x /etc/tcprules.d/qmail-smtpd.cdb \
        0 smtp \
        /usr/local/bin/rblsmtpd -rrbl.maps.vix.com \
        /usr/local/bin/rblsmtpd -rdul.maps.vix.com \
        /var/qmail/bin/qmail-smtpd 2>&1 &


Everything seems fine, and the machine is humming along, until I notice a
load average of 9/9/9!  I was tracing it down, but ps, top, etc did not show
ANYTHING using CPU time.. but what I did notice from 'ps ax' was:

24408  ?  S    0:00 /usr/local/bin/rblsmtpd -rrbl.maps.vix.com
/usr/local/bin/r
. (3 more)
24431  ?  D    0:00 /usr/local/bin/rblsmtpd -rdul.maps.vix.com
/var/qmail/bin/q
24432  ?  D    0:00 /usr/local/bin/rblsmtpd -rdul.maps.vix.com
/var/qmail/bin/q
24434  ?  D    0:00 /usr/local/bin/rblsmtpd -rrbl.maps.vix.com
/usr/local/bin/r
. (2 more)
24453  ?  D    0:00 /usr/local/bin/rblsmtpd -rrbl.maps.vix.com
/usr/local/bin/r

I killed these, and my load avg went back down.  What caused this?

Thanks,

Robert