How do you know when a reboot is required after yum update?

[Tom Horsley]

> There have been times though when "things seemed odd"

Yea, in particular all the maze of interlocking gnome daemons
and random gconf changes that may or may not be
made by some update can often leave previously running
components not talking clearly to newly loaded updated
components. You may or may not be able to find enough
ways to restart things to clear up the problems, rebooting
is usually much easier than doing the 6 months of
research to determine which daemon has an impedance
mis-match :-).