Hey Christian, On Tue, 2016-12-20 at 12:29 +0100, Christian Ehrhardt wrote: > 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 I couldn't reproduce here with openSUSE Tumbleweed and libvirt 2.5 packages. > - your expertise on the case itself. It seems that you'll need to check what's going on in virCgroupDetect(). > 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> The emulator should be removed from the config for portability purpose: the libvirt_lxc path may vary from a distro / arch to another and libvirt's lxc driver is able to auto-add it. -- Cedric -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
