Comment 4 for bug 1153280

I see the following error messages in q-dhcp log:
http://logs.openstack.org/22415/16/check/gate-tempest-devstack-vm-quantum/12557/logs/screen-q-dhcp.txt.gz

2013-03-06 22:31:47.287 20495 DEBUG quantum.agent.linux.utils [-] Running command: ['sudo', '/usr/local/bin/quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ip', 'netns', 'exec', 'qdhcp-1353ae8e-9f40-4555-a389-ca2495493250', 'ip', '-o', 'link', 'show', 'tapc4349aa6-21'] execute /opt/stack/new/quantum/quantum/agent/linux/utils.py:42
2013-03-06 22:31:47.510 20495 DEBUG quantum.agent.linux.utils [-]
Command: ['sudo', '/usr/local/bin/quantum-rootwrap', '/etc/quantum/rootwrap.conf', 'ip', 'netns', 'exec', 'qdhcp-1353ae8e-9f40-4555-a389-ca2495493250', 'ip', '-o', 'link', 'show', 'tapc4349aa6-21']
Exit code: 1

I wonder whether this is related also to these two:
https://bugs.launchpad.net/quantum/+bug/1080846
https://bugs.launchpad.net/nova/+bug/1152893