title: openstack error : virNetSocketReadWire:1806 : End of file while reading data: Input/output error
body: <p>In compute node of OPenstack environment, I added to bridge and restarted network, but the network can't be up.</p>
  <p>ovs-vsctl add-br br-eno1</p>
  <p>ovs-vsctl add-port br-eno1 eno1</p>
  <p>systemctl restart network.service</p>
  <p>In the log, I can find the following errors:</p>
  <p>Jul 09 12:58:46 sh-compute-c7k4-bay06 kvm[3000]: 1 guest now active</p>
  <p>Jul 09 12:58:46 sh-compute-c7k4-bay06 kvm[3001]: 0 guests now active</p>
  <p>Jul 09 12:58:47 sh-compute-c7k4-bay06 libvirtd[7510]: 2020-07-09 04:58:47.118+0000: 7510: error
  virNetSocketReadWire:1806 : End of f</p>
  <p>Jul 09 12:58:47 sh-compute-c7k4-bay06 systemd[1]: openstack-nova-compute.service holdoff time over,
  scheduling restart.</p>
  <p>Jul 09 12:58:47 sh-compute-c7k4-bay06 systemd[1]: Stopped OpenStack Nova Compute Server.</p>
  <p>-- Subject: Unit openstack-nova-compute.service has finished shutting down</p>
  <p>-- Defined-By: systemd</p>
  <p>-- Support: <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="nofollow noreferrer">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a></p>
  <p>--</p>
  <p>-- Unit openstack-nova-compute.service has finished shutting down.</p>
  <p>Jul 09 12:58:47 sh-compute-c7k4-bay06 systemd[1]: Starting OpenStack Nova Compute Server...</p>
  <p>-- Subject: Unit openstack-nova-compute.service has begun start-up</p>
  <p>-- Defined-By: systemd</p>
  <p>-- Support: <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="nofollow noreferrer">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a></p>
  <p>--</p>
  <p>-- Unit openstack-nova-compute.service has begun starting up.</p>
  <p>Jul 09 12:58:49 sh-compute-c7k4-bay06 systemd[1]: Started OpenStack Nova Compute Server.</p>
  <p>-- Subject: Unit openstack-nova-compute.service has finished start-up</p>
  <p>-- Defined-By: systemd</p>
  <h2>-- Support: <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="nofollow noreferrer">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a></h2>
  <h2>-- Unit openstack-nova-compute.service has finished starting up.</h2>
  <p>-- The start-up result is done.</p>