[Pkg-libvirt-maintainers] Bug#543970: Bug#543970: libvirt-bin: net-create does not save new network

[Filip Van Raemdonck]

Hi Guido,

On Fri, Aug 28, 2009 at 04:24:08AM +0200, Guido Günther wrote:
> On Thu, Aug 27, 2009 at 10:15:16PM +0200, Filip Van Raemdonck wrote:
> >
> > When running "virsh -c qemu:///system net-create definition.xml", a new
> > virtual network is defined as expected, but the definition of it is not
> > saved into the /etc/libvirt/qemu/networks directory.
> > As a result, a number of things do not work properly, such as marking the
> > new network for autostart.
>
> I can't reproduce this on 0.4.6-10 or 0.7.0. Please attache the network
> xml and the output of:
> 	virsh net-dumpxml <network-name>
> after defining the network.

I've been able to reproduce this on a RHEL5.3 system with the RHEL5.4
virtualization beta packages installed; I'm positive that this bug exists,
is upstream, and is reproducable.

Test sequence on the lenny system I reported from:


mechanix at jotunn:~$ find /etc/libvirt/qemu/networks/ ! -type d
/etc/libvirt/qemu/networks/autostart/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/autostart/sysfs.vlan.xml
/etc/libvirt/qemu/networks/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/sysfs.vlan.xml
mechanix at jotunn:~$ virsh -c qemu:///system net-list
Name                 State      Autostart 
-----------------------------------------
sysfs.ovirt          active     yes       
sysfs.vlan           active     yes       

mechanix at jotunn:~$ cat /tmp/foo 
<network>
  <name>blah</name>
  <forward mode='nat'/>
  <bridge name='virbr2' stp='on' forwardDelay='0' />
  <ip address='10.40.0.1' netmask='255.255.254.0'>
    <dhcp>
      <range start='10.40.1.2' end='10.40.1.253' />
    </dhcp>
  </ip>
</network>

mechanix at jotunn:~$ virsh -c qemu:///system net-create /tmp/foo
Network blah created from /tmp/foo

mechanix at jotunn:~$ virsh -c qemu:///system net-list
Name                 State      Autostart 
-----------------------------------------
blah                 active     no        
sysfs.ovirt          active     yes       
sysfs.vlan           active     yes       

mechanix at jotunn:~$ virsh -c qemu:///system net-dumpxml blah
<network>
  <name>blah</name>
  <uuid>36bec76f-b5ae-948c-4cfd-3fabd83bcf96</uuid>
  <forward mode='nat'/>
  <bridge name='virbr2' stp='on' forwardDelay='0' />
  <ip address='10.40.0.1' netmask='255.255.254.0'>
    <dhcp>
      <range start='10.40.1.2' end='10.40.1.253' />
    </dhcp>
  </ip>
</network>

mechanix at jotunn:~$ find /etc/libvirt/qemu/networks/ ! -type d
/etc/libvirt/qemu/networks/autostart/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/autostart/sysfs.vlan.xml
/etc/libvirt/qemu/networks/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/sysfs.vlan.xml
mechanix at jotunn:~$ virsh -c qemu:///system net-autostart blah
libvir: QEMU error : internal error Failed to create symlink '(null)' to '(null)': Bad address
error: failed to mark network blah as autostarted

mechanix at jotunn:~$ virsh -c qemu:///system net-edit blah
Network blah XML configuration edited.

mechanix at jotunn:~$ find /etc/libvirt/qemu/networks/ ! -type d
/etc/libvirt/qemu/networks/autostart/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/autostart/sysfs.vlan.xml
/etc/libvirt/qemu/networks/blah.xml
/etc/libvirt/qemu/networks/sysfs.ovirt.xml
/etc/libvirt/qemu/networks/sysfs.vlan.xml



Kind regards,

Filip

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My weblog: http://blog.sysfs.net/