ABA problem

English Etymology ABA represents the change in value of a memory location from A to B and back to A. Noun - en computing In multithreaded computing, a case in which a program erroneously considers the equality of a variable at two times to mean it has never changed in between. en Understanding and Effectively Preventing the ABA Problem in Descriptor-Based Lock-Free Designs Damian Dechev; Peter Pirkelbauer; Bjarne Stroustrup 2010 ISORC 2010 - 2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing The ABA problem is a fundamental problem to many CAS-based nonblocking designs. Further reading