Re: [libvirt-users] vhost-net requested but could not be initialized

On 24 July 2014 15:52, Daniel P. Berrange <berrange(a)redhat.com&gt; wrote: > On Thu, Jul 24, 2014 at 03:48:06PM +0500, Asadullah Hussain wrote: > > Let me clarify my question, I am using unmodified stock qemu (1.4.0) and > > only the location of vhost file descriptor is different from default (I > > don't remove the default /dev/vhost-net directory) > > > > The VHOST file descriptor is present in "/dev/vhost-0" directory > instead of > > the default "/dev/vhost-net". When I try to give vhostfd in the XML I > get a > > different error: > > Well I suggest you make your system use the expected device > name for /dev/vhost-net. Just as libvirt only targets mainline > QEMU, we only target mainline kernel / standard device layout > > ​I was able to change my device name to /dev/vhost-net but still I get the error, the error itself isn't telling much about the problem: 2014-07-24 10:41:35.970+0000: 3183: error : qemuMonitorOpenUnix:293 : failed to connect to monitor socket: No such process 2014-07-24 10:41:35.970+0000: 3183: error : qemuProcessWaitForMonitor:1806 : internal error process exited while connecting to monitor: qemu-system-x86_64: -netdev type=tap,id=net1,script=no,downscript=no,ifname=port4,vhost=on: vhost-net requested but could not be initialized qemu-system-x86_64: -netdev type=tap,id=net1,script=no, downscript=no,ifname=port4,vhost=on: Device 'tap' could not be initialized ​ > Regards, > Daniel > -- > |: http://berrange.com -o- > http://www.flickr.com/photos/dberrange/ :| > |: http://libvirt.org -o- > http://virt-manager.org :| > |: http://autobuild.org -o- > http://search.cpan.org/~danberr/ :| > |: http://entangle-photo.org -o- > http://live.gnome.org/gtk-vnc :| > -- Cheers, Asadullah Hussain