This bug is missing log files that will aid in diagnosing the problem. >From a terminal window please run:
apport-collect 1504154 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1504154 Title: OVS with GRE tunnels no longer works Status in linux package in Ubuntu: Incomplete Bug description: I have OpenStack environment with OVS with GRE tunnels between Compute nodes. All nodes OpenStack nodes have: Description: Ubuntu 14.04.2 LTS Release: 14.04 After upgrading kernel from 3.13.0-45 to 3.13.0-46 on one Compute node OpenStack networking on this node no longer works. It also does not work on any newer version up to 3.13.0-65. Everything looks OK, bridges and ports are configured in OVS, but there is no communication - VMs can't receive network configuration from DHCP agent running on another server. The same is with 3.16 kernel: Last working version is 3.16.0-30. With version 3.16.0-31and newer up to 3.16.0-50 network communication does not work. I analyzed changes included in 3.13.0-46 and 3.16.0-31 and both have the same change regarding GRE: * gre: fix the inner mac header in nbma tunnel xmit path Maybe this is the reason? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1504154/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp