[Bug 1524339] [NEW] virsh failure to start lxc container - internal error: Unable to find 'cpuacct' cgroups controller mount

[Larry Michel]

Public bug reported:

Seeing  libvirt error  while trying to deploy instances in OpenStack deployment: 
"error: internal error: Unable to find 'cpuacct' cgroups controller mount".

This is recreatable for kilo and liberty.


The cloud version for kilo is root at lambert:~# dpkg -l|grep virt
ii  libvirt-bin                         1.2.12-0ubuntu14.2~cloud0             amd64        programs f
or the libvirt library
ii  libvirt0                            1.2.12-0ubuntu14.2~cloud0             amd64        library fo
r interfacing with different virtualization systems

And I was also able to recreate with liberty version:

root at lambert:/etc/apt/sources.list.d# apt-cache policy libvirt-bin
libvirt-bin:
  Installed: 1.2.16-2ubuntu11~cloud0
  Candidate: 1.2.16-2ubuntu11~cloud0
  Version table:
 *** 1.2.16-2ubuntu11~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-updates/liberty/main amd64 Packages
        100 /var/lib/dpkg/status
     1.2.2-0ubuntu13.1.14 0
        500 http://archive.ubuntu.com//ubuntu/ trusty-updates/main amd64 Packages
     1.2.2-0ubuntu13.1.7 0
        500 http://archive.ubuntu.com//ubuntu/ trusty-security/main amd64 Packages
     1.2.2-0ubuntu13 0
        500 http://archive.ubuntu.com//ubuntu/ trusty/main amd64 Packages


When I tried on a system  with 1.2.2-0ubuntu13.1.7, there was no issue starting the container.

If this is an issue with the version in the cloud archives, when was it
fixed and when does  the fix makes it to the kilo and liberty cloud
archives?

Below is the error on the nova-compute node with actual instance xml and
I also recreated with a basic container:

root at lambert:~# virsh -c lxc:/// dumpxml instance-00000001
<domain type='lxc'>
  <name>instance-00000001</name>
  <uuid>9d5ecebb-f387-4eb7-b337-c1a47589094b</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
      <nova:package version="2015.1.2"/>
      <nova:name>guestOS-test-lxc-precise_0</nova:name>
      <nova:creationTime>2015-12-09 11:12:13</nova:creationTime>
      <nova:flavor name="m1.small">
        <nova:memory>2048</nova:memory>
        <nova:disk>20</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>0</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="2abcabaf56fd41fc8378498c11a85f47">admin</nova:user>
        <nova:project uuid="93afe3cf82d940618c1450936feaed85">admin</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="6950412f-2fb4-4a8e-93b3-e0b5dc7a2c3d"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>2097152</memory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/sbin/init</init>
    <cmdline>console=tty0 console=ttyS0 console=ttyAMA0</cmdline>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/lib/libvirt/libvirt_lxc</emulator>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/var/lib/nova/instances/9d5ecebb-f387-4eb7-b337-c1a47589094b/rootfs'/>
      <target dir='/'/>
    </filesystem>
    <interface type='bridge'>
      <mac address='fa:16:3e:d8:cc:72'/>
      <source bridge='qbr1962ef4b-ee'/>
      <target dev='tap1962ef4b-ee'/>
    </interface>
    <console type='pty'>                                                                                                                                                                           [583/1825]
      <target type='lxc' port='0'/>
    </console>
  </devices>
</domain>

root at lambert:~# virsh -c lxc:/// start instance-00000001                                             
error: Failed to start domain instance-00000001
error: internal error: Unable to find 'cpuacct' cgroups controller mount

root at lambert:~# virsh -c lxc:/// dumpxml myinstance
<domain type='lxc'>
  <name>myinstance</name>
  <uuid>704269a9-d9ae-49eb-ae5e-1222fd703872</uuid>
  <memory unit='KiB'>102400</memory>
  <currentMemory unit='KiB'>102400</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/bin/sh</init>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/lib/libvirt/libvirt_lxc</emulator>
    <console type='pty'>
      <target type='lxc' port='0'/>
    </console>
  </devices>
</domain>

root at lambert:~# virsh -c lxc:/// start myinstance
error: Failed to start domain myinstance
error: internal error: Unable to find 'cpuacct' cgroups controller mount

** Affects: cloud-archive
     Importance: Undecided
         Status: New

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: oil

** Also affects: cloud-archive
   Importance: Undecided
       Status: New

** Summary changed:

- Failure to start lxc container - internal error: Unable to find 'cpuacct' cgroups controller mount
+ virsh failure to start lxc container - internal error: Unable to find 'cpuacct' cgroups controller mount

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https://bugs.launchpad.net/bugs/1524339

Title:
  virsh failure to start lxc container - internal error: Unable to find
  'cpuacct' cgroups controller mount

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