does DRDT deal with atomic_ops(3C)?
The DRDT tutorial says (Section 6.1.1):
The Data-Race Detection Tool can recognize most standard synchronization APIs and constructs provided by OpenMP, POSIX threads, and Solaris threads. However, the tool cannot recognize roll-your-own style synchronizations, and may report false data-races if such synchronizations are used. For example, the tool cannot recognize implementation of locks using CAS instructions, post and wait operations using busy-waits, etc.
So the question is, does DRDT automatically recognize atomic_ops(3C) operations?
It's worth revising the tutorial to establish the answer explicitly, one way or the other.
And if the answer is no, then a worked-out example of using the rdt_notify_...() functions
around such an operation would be useful.
Similarly, any interaction with membar_ops(3C) routines should be described.

