When I try to start mediatomb it fails. I see this in dmesg

[...]
[916349.374331] init: mediatomb main process ended, respawning
[916349.394462] init: mediatomb main process (880) terminated with status 1
[916349.394512] init: mediatomb main process ended, respawning
[916349.414598] init: mediatomb main process (882) terminated with status 1
[916349.414647] init: mediatomb respawning too fast, stopped

My current /etc/init/mediatomb.conf looks like this.

description "MediaTomb UPnP media server"
author      "Daniel van Vugt <vanvugt in launchpad>"

start on (local-filesystems and net-device-up IFACE!=lo)
stop on runlevel [!2345]
respawn

env CONFIGXML=/etc/mediatomb/config.xml
env LOGFILE=/var/log/mediatomb.log
env DEFAULT=/etc/default/mediatomb

script
    [ -r $DEFAULT ] && . $DEFAULT
    [ ! $USER ] && USER=root
    [ ! $GROUP ] && GROUP=$USER
    if [ -n "$INTERFACE" ]; then
        INTERFACE_ARG="-e $INTERFACE"
        $ROUTE_ADD $INTERFACE
    fi
    exec mediatomb \
        -c $CONFIGXML \
        -u $USER \
        -g $GROUP \
        -l $LOGFILE \
        $INTERFACE_ARG \
        $OPTIONS
end script

post-stop script
    [ -r $DEFAULT ] && . $DEFAULT
    if [ -n "$INTERFACE" ]; then
        $ROUTE_DEL $INTERFACE
    fi
end script