Hi Paul, As promised, I have a potentially more interesting comment regarding Section 9.5. Throughout this section, from the very first example, the writer uses release semantics, but the readers are not obligated to use acquire semantics, at least on sensible architectures (with apologies to employees of HP nee Compaq nee Digital). If I understand correctly, these relaxed semantics are the result of an address dependency, with the data protected by the RCU critical section residing in a structure whose address is stored by the pointer dereferenced by a reader. The reader cannot consider any data outside of this structure as protected by the critical section. This is a critical point without which the examples won't work reliably. Am I missing something? If not, I think that this point should be emphasized early on, with a link to Section 15.2.3. --Elad
