[Haskell-cafe] Software Transactional Memory and LWN

Hi, Browsing LWN, I ran across this comment: http://lwn.net/Articles/336039/ The author makes a bunch of unsubstantiated claims about STM, namely that all implementations use locking under the hood, and that STM can live- and deadlock. I've seen a lot of similar sentiments in other places as well (comp.arch springs to mind). Now, I'm no expert on STM, but I was pretty sure these are incorrect, and I certainly had the impression that Haskell's STM guarantees some progress - which it couldn't in a deadlock situation. Am I wrong? -k -- If I haven't seen further, it is by standing in the footprints of giants