On Tue, Mar 10, 2015 at 11:31:17AM -0400, Brian Rak wrote:
> After we upgraded to 1.2.12, we've been having issues with libvirt... it
> complains that our formerly valid guest definitions are now invalid:
Yeah, w/ 1.2.12, I've noticed similar XML validation errors. E.g. the
XML fragment in the below email worked with 1.2.11, but failed with git
as noted:
http://www.redhat.com/archives/libvir-list/2015-February/msg00958.html
Issue in the above case: 'virtio-mmio' address type was missing from
the RNG schemas
which was fixed in (1.2.13):
http://www.redhat.com/archives/libvir-list/2015-February/msg01022.html
-- [PATCH for 1.2.13] schema: Add virtio-mmio address type into RNG
--
/kashyap
> error: Failed to start domain XXXX
> error: internal error: Cannot instantiate filter due to unresolvable
> variables or unavailable list elements: DHCPSERVER
>
> We looked into this, and found that it's the XML validation that's failing:
>
> # xmllint --noout --relaxng "/share/libvirt/schemas/domain.rng" XXXX.xml
> --recover
> Relax-NG validity error : Extra element devices in interleave
> test.xml:1: element domain: Relax-NG validity error : Element domain failed
> to validate content
> test.xml fails to validate
>
> And, a minimal domain XML to reproduce it (this won't boot, but it shows the
> issue):
>
> <domain type='kvm' id='65'>
> <name>XXXX</name>
> <uuid>b602b5f2-b9d7-43bd-a949-acc7eeeb9f8f</uuid>
> <memory unit='KiB'>1048576</memory>
> <devices>
> <interface type='bridge'>
> <filterref filter='myfilter'>
> <parameter name='CTRL_IP_LEARNING' value='none'/>
> <parameter name='DHCPSERVER' value='104.156.226.10'/>
> <parameter name='IP' value='104.207.129.11'/>
> <parameter name='IP6_ADDR' value='2001:19f0:300:2102::'/>
> <parameter name='IP6_MASK' value='64'/>
> </filterref>
> </interface>
> </devices>
> </domain>
>
> The cause seems to be having multiple parameters in a <filterref> block.
>
> We applied the following patch to fix it:
>
> diff -ur src_clean/docs/schemas/domaincommon.rng
> src/docs/schemas/domaincommon.rng
> --- src_clean/docs/schemas/domaincommon.rng 2015-01-23
> 06:46:24.000000000 -0500
> +++ src/docs/schemas/domaincommon.rng 2015-03-10 11:30:42.057441342 -0400
> @@ -4468,6 +4468,7 @@
> <data type="NCName"/>
> </attribute>
> <optional>
> + <zeroOrMore>
> <element name="parameter">
> <attribute name="name">
> <ref name="filter-param-name"/>
> @@ -4476,6 +4477,7 @@
> <ref name="filter-param-value"/>
> </attribute>
> </element>
> + </zeroOrMore>
> </optional>
> </define>
>
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