On 04/30/2014 05:01 PM, Oleg Bondarev wrote: > Hi, > > Can anyone please help with the following: I have a running instance > with interface > > <interface type='bridge'> > <mac address='fa:16:3e:ba:a4:67'/> > <source bridge='br100/> > <target dev='vnet0'/> > <model type='virtio'/> > <filterref filter='nova-instance-instance-00000001-fa163ebaa467'/> > <alias name='net0'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x03' > function='0x0'/> > </interface> > > what I need is to clear network interface on the instance. I tried > virsh update-device with following xml: > > <interface type='bridge'> > <mac address='fa:16:3e:ba:a4:67'/> > <source bridge='br100/> > <model type='virtio'/> > </interface> > > but this results in the following error: > $ sudo virsh update-device 13 xml.xml --persistent --live --config > error: Failed to update device from xml.xml > error: End of file while reading data: Input/output error > error: Failed to reconnect to the hypervisor > > and libvirt is restarted. Is it possible to clear nw filter at all?
Yes, changing the filterref of the interface of a running domain has been supported since v1.0.1, but you've found a genuine bug! I've reproduced it on my system with the last sources from git, produced a patch to fix it, and posted it to the upstream list: http://www.redhat.com/archives/libvir-list/2014-May/msg00005.html Once this is ACKed and pushed, I'll pull it into the maintenance branches back to 1.0.1. Thanks for reporting this problem!
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