SystemTap on Fedora
yum install systemtap kernel-devel yum --enablerepo=fedora-debuginfo --enablerepo=updates-debuginfo install kernel-debuginfo
Note that kernel-debug is a different package: it is a variant of the base kernel that compiles in internal kernel checks like lockdep. It's good stuff, but not necessary for systemtap. If you do want to run it with systemtap, then you'll need the kernel-debug-devel and kernel-debug-debuginfo packages.