Spot on! The script qemu-ifup was indeed the cause of the problem. It's a dummy script that only does "exit 0" and it was apparently needed in the past with old versions of libvirt. I see examples on the net where it is used to configure interfaces with shell commands. I don't need it.
I see that everything works fine without the <script path="/opt/oa/etc/qemu-ifup"/> line, for vhostuser and ethernet interfaces. Are there any side effects or can I safely remove that line? Thanks again! Riccardo On 22 February 2018 at 20:55, Laine Stump <la...@redhat.com> wrote: > [...] > > <interface type="vhostuser"> > > <script path="/opt/oa/etc/qemu-ifup"/> > > ^^^^^^^^^^^^^^^^ Why do you have this line? > > Spo> $ virsh create vm.xml > > error: Failed to create domain from vm.xml > > error: unsupported configuration: scripts are not supported on > > interfaces of type vhostuser > > This error message tells you exactly what is wrong. The <script> element > is only supported for interfaces of type='ethernet' - these are > interfaces for which a tap device is created, but it's not connected to > anything; the purpose of the script is to connect the tap to device to > [something user-defined]. Other types of interface (e.g. vhost-user) > should have enough intelligence built into the code to perform all > necessary setup. > > Do you actually have something in this qemu-ifup file? > > > > > > > > The logs from libvirtd.log say: > > 2018-02-22 09:18:24.982+0000: 2033: warning : > > qemuProcessStartWarnShmem:4539 : Detected vhost-user interface without > > any shared memory, the interface might not be operational > > 2018-02-22 09:18:24.982+0000: 2033: error : qemuBuildHostNetStr:3894 : > > unsupported configuration: scripts are not supported on interfaces of > > type vhostuser > > > > The logs from qemu simply say: > > 2018-02-22 09:26:15.857+0000: shutting down, reason=failed > > > > And finally, ovs-vswitchd.log: > > 2018-02-22T09:18:24.715Z|00328|dpdk|INFO|VHOST_CONFIG: vhost-user > > client: socket created, fd: 51 > > 2018-02-22T09:18:24.716Z|00329|netdev_dpdk|INFO|vHost User device '0.vm' > > created in 'client' mode, using client socket '/opt/oa/vhost/0.vm.sock' > > 2018-02-22T09:18:24.718Z|00330|dpdk|WARN|VHOST_CONFIG: failed to connect > > to /opt/oa/vhost/0.vm.sock: No such file or directory > > 2018-02-22T09:18:24.718Z|00331|dpdk|INFO|VHOST_CONFIG: > > /opt/oa/vhost/0.vm.sock: reconnecting... > > 2018-02-22T09:18:24.718Z|00332|bridge|INFO|bridge switch1: added > > interface 0.vm on port 5 > > > > > > Am I missing something on the openvswitch or on the libvirt side? > > > > It looks like openvswitch can't find /opt/oa/vhost/0.vm.sock, but isn't > > either openvswitch or libvirt in charge of creating it? > > Then, I'm not too sure about the error messages in libvirtd.log... > > > > My software versions are: libvirt 3.10.0, qemu 2.10.2, openvswitch 2.8.1 > > and DPDK 17.11. > > > > Thanks a lot! > > > > Riccardo > > > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users@redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > >
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