winbind frequently gives deamon.err in /var/log/messages

Issue

While server reboots, winbind gives the following messages in /var/log/messages. What does those messages mean?

# grep winbindd /var/log/messages
localhost daemon.err: winbindd[PID]: [2013/08/xx 12:00:29.xxxxx,  0] winbindd/winbindd_cache.c:3110(initialize_winbindd_cache)
localhost daemon.err: winbindd[PID]: initialize_winbindd_cache: clearing cache and re-creating with version number 2