Hi,
--
I found an issue in libvirt related to libvirt-lxc, but fail to find the root cause.
The TL;DR is: libvirt-lxc guests get killed on libvirt restart due to "internal error: No valid cgroup for machine"
It was able to reproduce libvirt 1.3.1, 2.4 and 2.5 as packages in Ubuntu and Debian.
I wanted to ask for two things:
- wider coverage where this does reproduce
- your expertise on the case itself.
Steps to reproduce:
1. Spawn new KVM Guest of your choice
2. install test dependencies
$ apt-get install libvirt-daemon-system libvirt-clients libxml2-utils
# or package managers / package names of your chosen os
3. run the following sequence as root
export LIBVIRT_DEFAULT_URI=lxc:///
cat << EOF > /tmp/smoke-lxc.xml
<domain type='lxc'>
<name>sl</name>
<memory unit='KiB'>256000</memory>
<currentMemory unit='KiB'>256000</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type>exe</type>
<init>/bin/bash</init>
</os>
<features>
<privnet/>
</features>
<clock offset='utc'/>
<devices>
<emulator>/usr/lib/libvirt/libvirt_lxc</emulator>
<filesystem type='mount' accessmode='passthrough'>
<source dir='/'/>
<target dir='/'/>
</filesystem>
<console type='pty'>
<target type='lxc' port='0'/>
</console>
</devices>
</domain>
EOF
virsh define /tmp/smoke-lxc.xml
virsh start sl
virsh list --all
# is running now
/etc/init.d/libvirtd restart
virsh list --all
# is no more running, but it should
Way more background and detail can be found at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=848317
Christian Ehrhardt
Software Engineer, Ubuntu Server
Canonical Ltd
-- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
