Bug 984026

+++ This bug was initially created as a clone of Bug #983685 +++

If I start a simple bash container with networking, udevadm settle proceeds to hang on the host. This affects other libvirt functions like storage pool listing. If I remove the <interface> XML, settle doesn't hang.

Any recommendations on getting more info is appreciated.


I have this container:

<domain type='lxc'>
  <name>bash</name>
  <uuid>f1a972fc-eefd-4ca2-cc4b-b769cd25cadc</uuid>
  <memory unit='KiB'>65536</memory>
  <currentMemory unit='KiB'>61440</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/bin/sh</init>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/libexec/libvirt_lxc</emulator>
    <interface type='network'>
      <mac address='00:16:3e:ab:9a:cd'/>
      <source network='default'/>
    </interface>
    <console type='pty'>
      <target type='lxc' port='0'/>
    </console>
  </devices>
</domain>


Default network XML is:

<network>
  <name>default</name>
  <uuid>ff473bff-797f-41dd-b3df-f5a67b0a5f20</uuid>
  <forward mode='nat'>
    <nat>
      <port start='1024' end='65535'/>
    </nat>
  </forward>
  <bridge name='virbr0' stp='on' delay='0' />
  <mac address='52:54:00:d1:52:aa'/>
  <ip address='192.168.123.1' netmask='255.255.255.0'>
    <tftp root='/var/lib/tftpboot' />
    <dhcp>
      <range start='192.168.123.2' end='192.168.123.254' />
      <bootp file='pxelinux.0' />
    </dhcp>
  </ip>
</network>



To test, dump the first XML to file, sudo virsh --connect lxc:/// define <vmxml>, sudo virsh --connect lxc:/// start bash, udevadm settle on host.udev

--- Additional comment from Daniel Berrange on 2013-07-12 10:17:20 BST ---

I've seen this before too, but never managed to get to the bottom of it. Will look again & ask systemd folks for opinions.

--- Additional comment from Daniel Berrange on 2013-07-12 14:52:04 BST ---

http://lists.freedesktop.org/archives/systemd-devel/2013-July/011826.html