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description of problem:
libvirt should improve the xml format when define a vm have a empty <cpu/>
Version-Release number of selected component (if applicable):
libvirt-1.2.8-16.el7_1.1.x86_64
qemu-kvm-rhev-2.1.2-23.el7_1.1.x86_64
How reproducible:
100%
Steps to Reproduce:
1.edit a vm like this:
# virsh edit test3
...
<cpu>
</cpu>
...
2.check the xml
# virsh dumpxml test3
...
<cpu>
</cpu>
...
Actual results:
libvirt still format a empty <cpu/> and do not show any useful information in it.
Expected results:
if <cpu/> do not contain any special means in it, no need format it in xml, it will waste time to parse it.
if <cpu/> contain some special things, we should show them clearly in the xml.
Additional info:
This has been fixed upstream with the following commit.
commit e4d7ddfdd2220046b8ca9f5e2af3a5d45e962e44
Author: Andrea Bolognani <abologna>
Date: Fri Apr 10 15:09:59 2015 +0200
conf: Don't output <cpu> tag if it contains no information.
The tag is already marked as optional in the schema, so no changes
are needed there.
v1.2.14-107-ge4d7ddf
Verify this bug with libvirt-1.2.16-1.el7.x86_64:
1 . add a empty cpu element in guest xml:
# virsh edit test4
...
<cpu>
</cpu>
...
2. recheck the xml after edit:
# virsh dumpxml test4 |grep "<cpu>"
# echo $?
1
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2202.html