Create virtual machine failed using virDomainCreateXML

[netsurfed <zhuohaofan@xxxxxxx>]

Hi all, 

When I created a virtual machine using virDomainCreateXML, with virtualport type was openvswitch, and virtual machine creation failed. The error message is:

internal error: Child process (/sbin/tc filter add dev vnet110 parent ffff: protocol all u32 match u32 0 0 police rate 0kbps burst 0kb mtu 64kb drop flowid :1) unexpected exit status 2: RTNETLINK answers: Invalid argument

The Domain XML file the <interface> section like this:

<interface type='bridge'>
 <mac address='52:54:00:71:b1:b6'/>
 <source bridge='ovsbr'/>
 <virtualport type='openvswitch'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>

I looked at the system log and it looked like an ovs port problem:

4560 Jan 22 17:43:33 ubuntu-24 ovs-vsctl: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --if-exists del-port vnet110 -- add-port lcs_br_1 vnet110 -- set Interface vnet110 "external-     ids:attached-mac=\"52:54:00:21:63:25\"" -- set Interface vnet110 "external-ids:iface-id=\"d0e5c770-6f03-4703-b107-3b074f989b06\"" -- set Interface vnet110 "external-ids:vm-id=\"1c79066e-     46a2-4fa0-984c-a88a7fffcd2b\"" -- set Interface vnet110 external-ids:iface-status=active
4561 Jan 22 17:43:33 ubuntu-24 kernel: [29028.418651] device vnet110 entered promiscuous mode
4562 Jan 22 17:43:33 ubuntu-24 libvirtd[4307]: 2018-01-22 09:43:33.507+0000: 4310: error : virCommandWait:2572 : internal error: Child process (/sbin/tc filter add dev vnet110 parent ffff: pr     otocol all u32 match u32 0 0 police rate 0kbps burst 0kb mtu 64kb drop flowid :1) unexpected exit status 2: RTNETLINK answers: Invalid argument
4563 Jan 22 17:43:33 ubuntu-24 libvirtd[4307]: We have an error talking to the kernel
4564 Jan 22 17:43:33 ubuntu-24 kernel: [29028.454028] device vnet110 left promiscuous mode
4565 Jan 22 17:43:33 ubuntu-24 ovs-vsctl: ovs|00001|vsctl|INFO|Called as ovs-vsctl --timeout=5 -- --if-exists del-port vnet110

However, when I use "tc" to manage "vnet*" of an existing virtual machine, it still returns the same error.
root@ubuntu-24:~# /sbin/tc filter add dev vnet83 parent ffff: protocol all u32 match u32 0 0 police rate 0kbps burst 0kb mtu 64kb drop flowid :1
RTNETLINK answers: Invalid argument
We have an error talking to the kernel


Is there any reason for this problem? Thank you very much.

Below some information about my machine:
libvirt version: 3.4.0
ovs_version: "2.8.90"
root@ubuntu-24:~# uname -a
Linux ubuntu-24 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

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