Created attachment 799420 [details]
Kernel traces

While trying to run on 'podman run -d -p 8080:80 nextcloud' on openSUSE Kubic
20190304 I get the following error:
  ERRO[0007] Error adding network: failed to list chains: running 
  [/usr/sbin/iptables -t nat -S --wait]: exit status -1:  
  ERRO[0007] Error while adding pod to CNI network "podman": failed to list 
  chains: running [/usr/sbin/iptables -t nat -S --wait]: exit status -1:  
  error configuring network namespace for container 
  9f79ee1fec9ed4878b0944c35c0e93868ab22cc79847185aaf793cf228b30207: failed to 
  list chains: running [/usr/sbin/iptables -t nat -S --wait]: exit status -1:

And the kernel traces in attachment.

This error does not always happen.