Re: [libvirt] [PATCH 3/5] [FIX] macvtap support for libvirt -- qemu support
Ed Swierk <eswierk(a)aristanetworks.com> wrote on 02/12/2010 11:29:59 AM:
On Thu, Feb 11, 2010 at 10:19 AM, Stefan Berger <stefanb(a)us.ibm.com>
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.
How did you shut down the VM in this case? I may not have tried 'virsh
shutdown', but halting from within the VM should clean up properly, or
does this also not work?
Stefan
--Ed
Attachments:
- attachment.html (text/html — 1.5 KB)