Red Hat Bugzilla – Bug 1468443
VLAN interfaces are not removed correctly in Network Configuration
Last modified: 2017-07-07 06:01 EDT
Description of problem: In the Network settings, if I add VLAN interface, then remove it and then add again with the same id - it doesn't appear in the list. Sometimes anaconda crashes when adding it again. Version-Release number of selected component (if applicable): How reproducible: Impossibility to re-add interface with the same ID - always. Crashes - rare. Steps to Reproduce: 1. In the beginning of RHEL installation, go to Network Settings and add VLAN interface. It appears in the list of interfaces. 2. Remove this interface from the list by clicking "-" button 3. Try to add interface with the same id again. Actual results: The interface doesn't appear in the list. Note that when adding interface again, the old one (which we removed) is still visible in the "parent interface" drop-down box. Sometimes anaconda crashes with "AttributeError: 'NoneType' object has no attribute 'get_iface'". Though this happens rarely, can't reproduce this right now to provide a full traceback. Though it looks to fail in pyanaconda/ui/gui/spokes/network.py at the following line: log.debug("network: GUI, not adding connection %s, already have %s for device %s", uuid, existing_dev_cfg.con_uuid, existing_dev_cfg.device.get_iface()) Expected results: Additional info:
Created attachment 1295189 [details] Removed interface is still visible when choosing a parent for a new one We have added "VLAN connection 1" and then removed it, but when adding a new VLAN interface 'enp0s3.0 (via "VLAN connection 1")' is still somehow available.
Created attachment 1295250 [details] Potential patch This patch makes anaconda work better, but I am not sure if it is perfect - if "dev_cfg" is left from the previous attempt to add the device, then configuration parameters from it will be likely reused for the new attempt to add the same interface.