Description:

The "virtlockd.service" unit installed by libvirt has an invalid ExecStart entry:

ExecStart=@sbindir@/virtlockd

This should be a full path to the virtlockd executable:

ExecStart=/usr/sbin/virtlockd

Additionally, this unit file has no [Install] section so it cannot be enabled, nor does the [Unit] section set any dependencies vs. libvirtd. So the unit file should probably look something like:

[Unit]
Description=Virtual machine lock manager
Requires=virtlockd.socket
After=syslog.target
Before=libvirtd.service

[Service]
EnvironmentFile=-/etc/sysconfig/virtlockd
ExecStart=@sbindir@/virtlockd
ExecReload=/bin/kill -HUP $MAINPID
# Loosing the locks is a really bad thing that will
# cause the machine to be fenced (rebooted), so make
# sure we discourage OOM killer
OOMScoreAdjust=-900

[Install]
WantedBy=multi-user.target

Additional info:
* package version(s)

libvirt 1.0.1-1