It doesn't look like it's a full retry, atleast not for critical sections. From what I can tell you do three things; A) you can define a critical section whic

It doesn't look like it's a full retry, atleast not for critical sections. From what I can tell you do three things; A) you can define a critical section which must run atomically in respect to the CPU core moves B) if the critical section is interrupted you can define a callback or restart the section (meaning the section can be safely repeated) C) you can define a single operation to commit (ie, updating a pointer) You can certainly build a "retry on failure" method using this, CPU moves are rare so it's unlikely to fail the second time.