On Thu, Jun 30, 2016 at 09:20:04AM +0800, Huanle Han wrote:
hi,
I have a question about interface hotplug.
I attach and detach interface from vm for several times. I find the
pci slot of interface increases in live xml while keep unchanged in
config xml. Here is my test script and result:
Test Script:
#!/bin/bash
VM=ub1504b
print_xml() {
echo "$* : ========inactive==========="
virsh dumpxml --inactive $VM |grep -A 20 "<interface" |grep "mac\|slot"
echo "$* : ======== active==========="
virsh dumpxml $VM |grep -A 20 "<interface" |grep "mac\|slot"
}
print_xml begin_
virsh attach-device --config --live $VM if1.xml
print_xml attach
virsh detach-device --config --live $VM if1.xml
print_xml detach
Result:
begin_ : ========inactive===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
begin_ : ======== active===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
Device attached successfully
attach : ========inactive===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
<mac address='0c:da:11:11:11:11'/>
<address type='pci' domain='0x0000' bus='0x00' slot='*0x0c*'
function='0x0'/>
attach : ======== active===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
<mac address='0c:da:11:11:11:11'/>
<address type='pci' domain='0x0000' bus='0x00' slot='*0x0d*'
function='0x0'/>
Device detached successfully
detach : ========inactive===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
detach : ======== active===========
<mac address='0c:da:41:1e:02:9c'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
When execute the script for more than 1 times, You can see the pci
slot of attached interface in live xml differs from the one in config
xml.
Is this intentional or a bug ? If not a bug, why?
It definitely is a bug. Would you mind creating a new bug in our upstream bugzilla [1] with the details? Thanks a lot. Martin [1] https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Tools
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