Hello, thanks for your attention. I would like to kindly request support/advice/feedback about an issue that I am having with the Virtual Machine Manager and OpenVSwitch.
I am deploying 7 Virtual Machines (Virtual Machine Manager 1.4.1, CentOS 7) and need to connect them to an OpenVSwitch (2.5.2) bridge for SDN purposes. I installed OVS without any complications following this guide: https://gist.github.com/umardx/a31bf6a13600a55c0d07d4ca33133834 Later on, I created an OVS bridge with 7 ports, each one for my 7 VMs, following this very clear tutorial: https://www.youtube.com/watch?v=rYW7kQRyUvA At the moment I Power On any of the 7 VMs I get the following error: *Error starting domain: error creating macvtap interface macvtap0@vport5 (52:54:00:55:18:e7): Device or resource busyTraceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 88, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/asyncjob.py", line 124, in tmpcb callback(*args, **kwargs) File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 83, in newfn ret = fn(self, *args, **kwargs) File "/usr/share/virt-manager/virtManager/domain.py", line 1489, in startup self._backend.create() File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1039, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)libvirtError: error creating macvtap interface macvtap0@vport5 (52:54:00:55:18:e7): Device or resource busy* I've tried cloning the VMs thinking that adding the network interface later after creating the VM was the problem but the error continues to show up. In addition I restarted the OVS service and the result is the same. Thanks in advance for your attention, I apologize if this is not the correct channel to escalate this error, and would appreciate that you point me where I should direct it to. Kind Regards, Sebastian
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