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Re: [libvirt-users] Undefined interfaces?



On 04/18/2011 01:12 PM, Alex wrote:
Hi,
I have a working fc14 install with a few virtual interfaces set up,
and just noticed the following in messages:

Apr 18 13:07:43 fc14 libvirtd: 13:07:43.155: error :
interfaceGetXMLDesc:355 : internal error could not get interface XML
description (netcf: NETLINK socket operation failed - couldn't find
ifindex for interface `br0:0`)
Apr 18 13:07:43 fc14 libvirtd: 13:07:43.165: error :
interfaceGetXMLDesc:355 : internal error could not get interface XML
description (netcf: NETLINK socket operation failed - couldn't find
ifindex for interface `eth0:0`)
Apr 18 13:07:43 fc14 libvirtd: 13:07:43.175: error :
interfaceGetXMLDesc:355 : internal error could not get interface XML
description (netcf: NETLINK socket operation failed - couldn't find
ifindex for interface `eth1:0`)
Apr 18 13:07:43 fc14 libvirtd: 13:07:43.185: error :
interfaceGetXMLDesc:355 : internal error could not get interface XML
description (netcf: NETLINK socket operation failed - couldn't find
ifindex for interface `eth1:1`)

I see several references that indicate this may be a bug. Or have I
configured something wrong?

I'm assuming that you're running virt-manager, otherwise interfaceGetXMLDesc wouldn't be getting called so much. There could be some strange interaction between netlink and interfaces with ":" in the name. I'm just packing up to leave on a 5 day trip, though, and don't have time to investigate right now, but there are some things you can look at:

1) try running "virsh iface-list --all", then "virsh iface-dumpxml --inactive <name>" where <name> is the name of each interface displayed in the iface-list command. See which are successful.

2) also try "virsh iface-dumpxml <name>" (ie withough the --inactive) for each.

3) send the results of the above, as well as the output of "ifconfig -a"

4) also the output of "ls /etc/sysconfig/network-scripts/ifcfg-* | while read f; do echo =====; echo $f; cat $f; done"

Something from that could help in reproducing the problem.

I have some interfaces configured to be a bridge and others are
configured as a regular network, with the guests being masqueraded.
It's certainly possible I've configured something incorrectly.

I'm not sure what information to provide to help troubleshoot this.
Any information would be greatly appreciated.

Thanks,
Alex

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