Description of problem: When using Fedora 21 as the Xen dom0, NetworkManager crashes when a domU is started. I guess the time it crashes is the same as the time the domU trys to access the network interface. This problem can cause the system to be disconnected from the network. Version-Release number of selected component (if applicable): kernel-3.17.7-300.fc21.x86_64 xen-4.4.1-9.fc21.x86_64 NetworkManager-0.9.10.0-14.git20140704.fc21.x86_64 How reproducible: Always Steps to Reproduce: 1. Use `xl create -c /etc/xen/any_vm' to start a domU 2. Use `systemctl status NetworkManager' to see that it has crashed Actual results: NetworkManager should work. Expected results: NetworkManager crashes. Additional info:
Created attachment 973547 [details] NetworkManager log in systemd journal
Created attachment 973548 [details] Dom0 dmesg
Created attachment 973549 [details] Xen dmesg
It still crashes when using kernel-3.17.7-300.fc21.x86_64 xen-4.4.1-11.fc21.x86_64 NetworkManager-0.9.10.0-14.git20140704.fc21.x86_64
The problem can be fixed by upgrading NetworkManager to 1.0.0, but it causes gnome-control-center to show warning because of version mismatch.
It is still broken on kernel-3.17.8-300.fc21.x86_64 xen-4.4.1-11.fc21.x86_64 NetworkManager-0.9.10.1-1.2.20150109git.fc21.x86_64
It is still broken on kernel-3.17.8-300.fc21.x86_64 xen-4.4.1-12.fc21.x86_64 NetworkManager-0.9.10.1-2.fc21.x86_64
Is vif2.0 being added to a bridge port by Xen here? For NM devs, I think what's going on is this: nm_device_activate_stage3_ip_config_start() - sets ip4_state=IP_WAIT - sets NM_DEVICE_STATE_IP_CONFIG - the master interface's slave_state_changed() is called - it calls nm_device_enslave_slave() - nm_device_slave_notify_enslave() is called - since the slave is activating it sets ip4_state = IP_DONE - nm_device_activate_stage3_ip_config_start() is called - g_assert (ip4_state == IP_WAIT), which clearly isn't true
Yes, vif2.0 is created and added to an existing bridge by Xen.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
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Fedora 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.