On Thu, Feb 11, 2010 at 10:19 AM, Stefan Berger <stefanb@xxxxxxxxxx> wrote: > This part adds support for qemu making a macvtap tap device available > via file descriptor passed to qemu command line. This also attempts to > tear down the macvtap device when a VM terminates. This includes support > for attachment and detachment to/from running VM. In qemudShutdownVMDaemon(), calling delMacvtapByMACAddress() before virKillProcess() doesn't work. delMacvtapByMACAddress() tries to be polite and not delete the macvtap interface if it appears to be owned by someone else, but in this case it's our own qemu still holding the tap fd open: libvirtd: 16:10:04.836: error : openTap:567 : cannot open macvtap tap device /dev/tap63: Device or resource busy When the qemu process does finally stop, the macvtap interface is still around. --Ed -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list