python-API test in ubuntu_lxc will fail on X-kvm kernel

Bug #1764618 reported by Po-Hsu Lin on 2018-04-17
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Undecided
Unassigned
linux-kvm (Ubuntu)
Undecided
Unassigned

Bug Description

Steps:
  1. Deploy a KVM node with Xenial, install linux-kvm on it
  2. Run the ubutnu_lxc test from autotest-client-tests

Output:
  FAIL: python3: API
  ---
  Using image from local cache
  Unpacking the rootfs

  ---
  You just created an Ubuntu container (release=xenial, arch=amd64, variant=default)

  To enable sshd, run: apt-get install openssh-server

  For security reason, container images ship without user accounts
  and without a root password.

  Use lxc-attach or chroot directly into the rootfs to set a root password
  or create user accounts.
  Getting instance for '785bd96e-41ef-11e8-a707-5254004f0f0f'
  Creating rootfs using 'download', arch=amd64
  Testing the configuration
  Testing the networking
  Starting the container
  Getting the interface names
  Traceback (most recent call last):
    File "/tmp/tmp.jDauiqznXt", line 109, in <module>
      assert(set(container.get_interfaces()) == set(('lo', 'eth0')))
  AssertionError

If you try to intercept the ontainer.get_interfaces() result, you'll see:
('eth0', 'lo', 'sit0')

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: Tue Apr 17 03:46:14 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)

Po-Hsu Lin (cypressyew) wrote :
Po-Hsu Lin (cypressyew) wrote :

ip addr output from the KVM host:

$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:00:4f:0f:0f brd ff:ff:ff:ff:ff:ff
    inet 10.246.72.55/22 brd 10.246.75.255 scope global ens4
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe4f:f0f/64 scope link
       valid_lft forever preferred_lft forever
3: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1
    link/sit 0.0.0.0 brd 0.0.0.0
4: lxcbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:16:3e:00:00:00 brd ff:ff:ff:ff:ff:ff
    inet 10.0.3.1/24 scope global lxcbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::216:3eff:fe00:0/64 scope link
       valid_lft forever preferred_lft forever
86: veth33NLN2@if85: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master lxcbr0 state UP group default qlen 1000
    link/ether fe:c0:8a:bd:42:23 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::fcc0:8aff:febd:4223/64 scope link
       valid_lft forever preferred_lft forever
88: vethMH25TY@if87: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master lxcbr0 state UP group default qlen 1000
    link/ether fe:d8:c8:86:12:a8 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet6 fe80::fcd8:c8ff:fe86:12a8/64 scope link
       valid_lft forever preferred_lft forever
90: veth4J6PQB@if89: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master lxcbr0 state UP group default qlen 1000
    link/ether fe:f5:f0:d6:ba:ac brd ff:ff:ff:ff:ff:ff link-netnsid 2
    inet6 fe80::fcf5:f0ff:fed6:baac/64 scope link
       valid_lft forever preferred_lft forever

description: updated
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