svenvogel commented on issue #3278: systemvm: new qemu-guest-agent based 
patching for KVM
URL: https://github.com/apache/cloudstack/pull/3278#issuecomment-513379975
 
 
   @wido @GabrielBrascher that would be great! we can help by looking in the 
error and support but at the moment we dont see where the error comes from. 
what we see is that it has something to do with the qemu agent and the first 
connectivity check from the host to the VM. i will post here if i finde 
something.
   
   ```xml
   <channel type='unix'>
   <source mode='bind' path='/var/lib/libvirt/qemu/r-1710-VM.agent'/>
   <target type='virtio' name='r-1710-VM.vport'/>
   <alias name='channel0'/>
   <address type='virtio-serial' controller='0' bus='0' port='1'/>
   </channel>
   <channel type='unix'>
   <source mode='bind' 
path='/var/lib/libvirt/qemu/r-1710-VM.org.qemu.guest_agent.0'/>
   <target type='virtio' name='org.qemu.guest_agent.0'/>
   <alias name='channel1'/>
   <address type='virtio-serial' controller='0' bus='0' port='2'/>
   </channel>
   ```
   we found on any cases (not all) that got two channels. another thing is we 
use since we know ".org.qemu.guest_agent.0" and not ".vport". maybe there is a 
problem.
   
   you wrote about a similar issue. was it an issue with QEMU 2.12?

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