Hi Rishikesh, On Tue, Oct 13, 2009 at 3:09 PM, Rishikesh <risrajak@xxxxxxxxxxxxxxxxxx> wrote: > Rishikesh wrote: > Cgroup config file & controllers mount shows like this : > [root@mhs21a ~]# cat /proc/mounts | grep cgroup > cgroup /cgroups/cpu cgroup rw,relatime,cpu 0 0 > cgroup /cgroups/cpuacct cgroup rw,relatime,cpuacct 0 0 > cgroup /cgroups/memory cgroup rw,relatime,memory 0 0 AFAIW, libvirt requires "device" subsystem of cgroups as well. Without it, an assistant subprocess of libvirtd will die soon. >> virsh # start vm1 >> error: Failed to start domain vm1 >> error: Failed to read pid file /var/run/libvirt/lxc/vm1.pid: No such file >> or directory This error looks that happens to me. ozaki-r -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list