Discussed with smb and jvosburgh, this issue is similar to bug 1570565, some configs are missing for the KVM kernel.
$ grep -e VXLAN -e IPIP ubuntu-*-kvm/debian.kvm/config/config.common.ubuntu ubuntu-bionic-kvm/debian.kvm/config/config.common.ubuntu:# CONFIG_NET_IPIP is not set ubuntu-bionic-kvm/debian.kvm/config/config.common.ubuntu:# CONFIG_VXLAN is not set ubuntu-xenial-kvm/debian.kvm/config/config.common.ubuntu:CONFIG_NET_IPIP=y ubuntu-xenial-kvm/debian.kvm/config/config.common.ubuntu:# CONFIG_VXLAN is not set The fan tunneling uses IPIP or VXLAN, if both of these config were disabled, then this fan stuff is not expected to work and the test should be disabled on the KVM kernel. But the IPIP was enabled on Xenial KVM kernel, we will need to discuss this. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1763323 Title: ubuntu_fan_smoke_test failed on 4.4/4.15 kvm kernel Status in ubuntu-kernel-tests: Confirmed Status in linux package in Ubuntu: Triaged Status in linux-kvm package in Ubuntu: New Status in linux source package in Xenial: Triaged Status in linux-kvm source package in Xenial: New Bug description: The "enable disable fan test" will fail with Xenial KVM kernel Error message: RTNETLINK answers: Operation not supported /usr/sbin/fanctl: ip link add ftun0 type vxlan id 16384000 dev ens4 dstport 0 local 10.246.72.56 fan-map 250.0.0.0/8:10.246.0.0/16 /usr/sbin/fanctl: WARNING: ftun0: failed to configure address translation RTNETLINK answers: Cannot assign requested address iptables v1.6.0: Couldn't load target `fan-egress':No such file or directory Try `iptables -h' or 'iptables --help' for more information. iptables: Bad rule (does a matching rule exist in that chain?). iptables: Bad rule (does a matching rule exist in that chain?). iptables: No chain/target/match by that name. rm: cannot remove '/run/ubuntu-fan/nat-core': No such file or directory /usr/sbin/fanatic: unable to bring fan up, unable to configure ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-1021-kvm 4.4.0-1021.26 ProcVersionSignature: User Name 4.4.0-1021.26-kvm 4.4.117 Uname: Linux 4.4.0-1021-kvm x86_64 ApportVersion: 2.20.1-0ubuntu2.16 Architecture: amd64 Date: Thu Apr 12 10:22:57 2018 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-kvm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1763323/+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
