Hello, Akira, I pushed out some additions to the glossary, but the entry for "RCU Read-Side Critical Section" is proving a challenge. It is a hierarchical entry under "Critical section", but contains "RCU" which should be capitalized. I tried a number of things, perhaps most notably "\IXGalth{RCU Read-Side}{Critical Section}{RCU Read-Side}", but no joy. Could you please tell me what trick I am missing? Thanx, Paul