[libvirt-users] domain schema fails to validate sysinfo element

Michal Privoznik mprivozn at redhat.com
Thu Oct 13 01:08:28 UTC 2016

On 13.10.2016 02:55, mordenkainen wrote:
> I'm puzzled why virt-xml-checker rejects minimal config xml if it includes sysinfo element:
> <domain type='kvm'>
>   <name>example</name>
>   <sysinfo>
>   </sysinfo>
> </domain>
> with the following error:
> Relax-NG validity error : Extra element sysinfo in interleave
> minimal.xml:3: element sysinfo: Relax-NG validity error : Element domain failed to validate content
> minimal.xml fails to validate

Sigh. I wish libxml2 would report more sane error messages. But if we
stretch it enough it can make sense. Just a little. Basically, this
error message says, the problem is with sysinfo element. So opening up
our RNG schema (docs/schemas/domaincommon.rng) you can search for
conditions we put onto the element:

  <define name="sysinfo">
    <element name="sysinfo">
      <attribute name="type">

So, the element <sysinfo/> MUST have attribute named 'type' with value
'smbios'. Therefore if I fix your small XML:

<domain type='kvm'>
  <sysinfo type='smbios'>

it validates just fine.


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