Hi all
I just encountered a problem in libvirt while was trying to attach and
detach a sr-iov vf to my VM
The version of my libvirt is 1.1.1-0ubuntu8.5
I tried to attach the device using following xml
<interface type='hostdev' managed='yes'>
<mac address='5c:01:fd:12:34:58'/>
<source>
<address type='pci' domain='0x0000' bus='0x04' slot='0x01'
function='0x1'/>
</source>
</interface>
When i attached device it worked properly and i managed to ping another
host.
virsh # attach-device t5 1.xml
Device attached successfully
But when i detached it still i had network traffic in my VM but
libvirt (virsh) said that
virsh # detach-device t5 1.xml
Device detached successfully
The next time i tried to attach it libvirt said that
virsh # attach-device t5 1.xml
error: Failed to attach device from 1.xml
error: Requested operation is not valid: PCI device 0000:04:01.1 is in
use by domain t5
I tried it with different VMs and different guest OSs that the same
happend.
The same action was done with another host running libvirt version
Installed: 1.0.2-0ubuntu11.13.04.5~cloud1
Candidate: 1.0.2-0ubuntu11.13.04.5~cloud1
and it worked pretty OK. No problem.
Do you have any idea what is wrong?
More information:
Kernel : 3.8.0-37-generic
/etc/libvirt/qemu.conf : security_driver = "none”
root@compute01:~# ethtool -i eth5
driver: bnx2x
version: 1.78.58
firmware-version: bc 7.4.22 phy 1.34
bus-info: 0000:04:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
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