Dear list, I am bulding a VM using libvirt and lxc for linux container. I have an issue with my cgroups settings:
gabx@hortensia ➤➤ ~ # virsh start dahlia error: Failed to start domain dahlia error: internal error: No valid cgroup for machine dahlia My environement: Host : Arch Linux - systemd 208-11, libvirt 1.2.1-4 guest : Arch Linux , machine name : dahlia , /etc/libvirt/lxc/dahlia.xml , mounted in /dahlia My set up so far : - gabx@hortensia ➤➤ ~ % sudo virsh uri [sudo] password for root: lxc:/// - gabx@hortensia ➤➤ ~ # virsh -c lxc:/// list --all Id Name State ------------------------------ ---------------------- - dahlia shut off - custom kernel with user space set gabx@hortensia ➤➤ ~ % zgrep USER_NS /proc/config.gz CONFIG_USER_NS=y - /etc/libvirt/lxc/dahlia.xml $ ls -al -rw------- 1 root root 1.1K Feb 15 12:11 /etc/libvirt/lxc/dahlia.xml $ cat <domain type='lxc'> <name>dahlia</name> <uuid>a34b58db-894f-4f4a-81f0-b13d2d5d7732</uuid> <memory unit='KiB'>409600</memory> <currentMemory unit='KiB'>409600</currentMemory> <vcpu placement='static'>1</vcpu> <resource> <partition>/machine/dahlia</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/bin/init</init> </os> <idmap> <uid start='0' target='1000' count='10'/> <gid start='0' target='1000' count='10'/> </idmap> <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> <interface type='network'> <mac address='52:54:00:89:8f:1a'/> <source network='default'/> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> - fstab : UUID=f69d032f-c80f-4f2e-84cd-d2328a862818 /dahlia ext4 defaults,relatime,discard 0 1 $ ls -al drwxr-xr-x 17 root root 4.0K Feb 11 21:41 dahlia/ - /etc/cgconfig: group dahlia { perm { # who can manage limits admin { uid = 1000; gid = 1004; } # who can add task task { uid = 1000; gid = 1004; } } # create this group in the controllers cpu { } cpuset { } memory { } devices { } freezer { } net_cls { } blkio { } } - /etc/cgrules is the default one, so everything is commented. Maybe shall I edit a line ?? - gabx@hortensia ➤➤ ~ # cat /proc/cgroups #subsys_name hierarchy num_cgroups enabled cpuset 3 5 1 cpu 4 4 1 cpuacct 4 4 1 memory 5 5 1 devices 6 4 1 freezer 7 5 1 net_cls 8 5 1 blkio 9 4 1 - gabx@hortensia ➤➤ ~ % systemctl status machine-dahlia.slice machine-dahlia.slice - dahlia VM slice Loaded: loaded (/etc/systemd/system/machine-dahlia.slice; static) Active: active since Sat 2014-02-15 11:53:01 CET; 15min ago Feb 15 11:53:01 hortensia systemd[1]: Starting dahlia VM slice. Feb 15 11:53:01 hortensia systemd[1]: Created slice dahlia VM slice. My systemd unit file machine-dahlia.slice in /etc/systemd/system. I am able to boot the container this way: # systemd-nspawn -bD /dahlia Apologize for the long post, but I wanted to detail everything. Thank you for help on my cgroups set up. -- google.com/+arnaudgabourygabx