[libvirt] tc ingress rule of VM B disappear when reboot VM A

ychen ychen103103 at 163.com
Mon Jul 20 08:43:43 UTC 2015


hi:
when I use openstack devstack to test QOS, wired phenomenon appeared, 
I set qos ingress rule in tapB, but when I reboot tapA, the ingress rule of tapB automatically removed, but the egress rule is still exist.
Test enviroment:
Linux: ubuntu 14.04.1 LTS
kernel: 3.13.0-32-generic
libvirt: 1.2.2
openstack: havana


1. use nova to create vm A and vm B. for the configuration of the libvirt xml, see the last paragraph in the end.
2. use tc cmd to create qos rule for vm A and vm B
   tc qdisc add dev tap3d0d2c4a-0b ingress  //vmA
   tc qdisc add dev tap896d5066-69 ingress //vmB


3. then use cmd 
  "sudo virsh destory 142a08db-6e25-4a03-be13-7073104b0745 "  to first shutdown vm1
  then I see ingress rule of vmB disappeared :(     




configurations:
  vmA:-------------------------------------------


  <domain type='qemu' id='15'>
  <name>instance-00000001</name>
  <uuid>142a08db-6e25-4a03-be13-7073104b0745</uuid>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <sysinfo type='smbios'>
    <system>
      <entry name='manufacturer'>OpenStack Foundation</entry>
      <entry name='product'>OpenStack Nova</entry>
      <entry name='version'>2013.2.3</entry>
      <entry name='serial'>5fd079ed-5bc3-45ed-8de5-8bf9b8533d82</entry>
      <entry name='uuid'>142a08db-6e25-4a03-be13-7073104b0745</entry>
    </system>
  </sysinfo>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
    <smbios mode='sysinfo'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/opt/stack/data/nova/instances/142a08db-6e25-4a03-be13-7073104b0745/disk'/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='bridge'>
      <mac address='fa:16:3e:22:68:6a'/>
      <source bridge='br-int'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='3d0d2c4a-0b72-4f91-b393-413e0c5a335b'/>
      </virtualport>
      <target dev='tap3d0d2c4a-0b'/>
      <model type='virtio'/>
      <driver name='qemu'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='file'>
      <source path='/opt/stack/data/nova/instances/142a08db-6e25-4a03-be13-7073104b0745/console.log'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <serial type='pty'>
      <source path='/dev/pts/31'/>
      <target port='1'/>
      <alias name='serial1'/>
    </serial>
    <console type='file'>
      <source path='/opt/stack/data/nova/instances/142a08db-6e25-4a03-be13-7073104b0745/console.log'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5900' autoport='yes' listen='127.0.0.1' keymap='en-us'>
      <listen type='address' address='127.0.0.1'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
    <label>libvirt-142a08db-6e25-4a03-be13-7073104b0745</label>
    <imagelabel>libvirt-142a08db-6e25-4a03-be13-7073104b0745</imagelabel>
  </seclabel>
</domain>


 vmB:-------------------------------------------
<domain type='qemu' id='13'>
  <name>instance-00000002</name>
  <uuid>fbd69f7b-83f1-45fe-818b-2021d5cb2e61</uuid>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <sysinfo type='smbios'>
    <system>
      <entry name='manufacturer'>OpenStack Foundation</entry>
      <entry name='product'>OpenStack Nova</entry>
      <entry name='version'>2013.2.3</entry>
      <entry name='serial'>5fd079ed-5bc3-45ed-8de5-8bf9b8533d82</entry>
      <entry name='uuid'>fbd69f7b-83f1-45fe-818b-2021d5cb2e61</entry>
    </system>
  </sysinfo>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
    <smbios mode='sysinfo'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/opt/stack/data/nova/instances/fbd69f7b-83f1-45fe-818b-2021d5cb2e61/disk'/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='bridge'>
      <mac address='fa:16:3e:c0:43:88'/>
      <source bridge='br-int'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='896d5066-694d-4f15-9abe-f587439f279b'/>
      </virtualport>
      <target dev='tap896d5066-69'/>
      <model type='virtio'/>
      <driver name='qemu'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='file'>
      <source path='/opt/stack/data/nova/instances/fbd69f7b-83f1-45fe-818b-2021d5cb2e61/console.log'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <serial type='pty'>
      <source path='/dev/pts/32'/>
      <target port='1'/>
      <alias name='serial1'/>
    </serial>
    <console type='file'>
      <source path='/opt/stack/data/nova/instances/fbd69f7b-83f1-45fe-818b-2021d5cb2e61/console.log'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5901' autoport='yes' listen='127.0.0.1' keymap='en-us'>
      <listen type='address' address='127.0.0.1'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
    <label>libvirt-fbd69f7b-83f1-45fe-818b-2021d5cb2e61</label>
    <imagelabel>libvirt-fbd69f7b-83f1-45fe-818b-2021d5cb2e61</imagelabel>
  </seclabel>
</domain>

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