Description of problem:

succeed creating an volume with wrong elements in xml file and there is no error output

Version-Release number of selected component (if applicable):

qemu-kvm-1.5.3-20.el7.x86_64
libvirt-1.1.1-13.el7.x86_64

How reproducible:

100%

Steps to Reproduce:

1. create an wrong vol xml file

# cat vol.xml 
<volume>
  <name>test-vol</name>
  <source>
  </source>
  <capacity unit='bytes'>1073741824</capacity>
  <allocation unit='bytes'>139264</allocation>
  <target>
    <format type='qcow2'/>
    <compat>1.1</compat>
    <features>
    <lazy_refcounts>on</lazy_refcounts>   
    </features>
  </target>
</volume>

# virt-xml-validate vol.xml storagevol
vol.xml:11: element lazy_refcounts: Relax-NG validity error : Did not expect text in element lazy_refcounts content
vol.xml fails to validate

2. create an volume with the wrong xml file

# virsh vol-create default vol.xml
Vol test-vol created from vol.xml

# qemu-img /var/lib/libvirt/images/test-vol
image: /var/lib/libvirt/images/test-vol
file format: qcow2
virtual size: 1.0G (1073741824 bytes)
disk size: 136K
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: true

Actual results:


Expected results:

in step2, there should be some error info like "not expect text in element lazy_refcounts content" and create volume with failure

Additional info:

<lazy_refcounts>on</lazy_refcounts> should be <lazy_refcounts/>, if want to set lazy refcounts off, just exclude <lazy_refcounts/>