Comment 1 for bug 1822591

I can reproduce this on current devstack:
stack 20640 2.1 0.6 466476 108520 ? Ss 10:23 7:32 /usr/bin/python /usr/bin/neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini
root 23941 0.0 0.0 272332 5632 ? S 10:23 0:00 \_ sudo /usr/bin/neutron-rootwrap-daemon /etc/neutron/rootwrap.conf
root 23944 0.0 0.1 467628 22496 ? Sl 10:23 0:01 \_ /usr/bin/python /usr/bin/neutron-rootwrap-daemon /etc/neutron/rootwrap.conf

After killing process 23944:

stack 20640 2.1 0.6 466476 108520 ? Ss 10:23 7:32 /usr/bin/python /usr/bin/neutron-dhcp-agent --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/dhcp_agent.ini
root 23941 0.0 0.0 0 0 ? Z 10:23 0:00 \_ [sudo] <defunct>

Was this working before? Thinking at when it may got broken