we need volatile too, to avoid the compiler moving load before a barrier
we need volatile too, to avoid the compiler moving load before a barrier

cwyang/h2o,devnexen/h2o,yannick/h2o,deweerdt/h2o,h2o/h2o,cwyang/h2o,h2o/h2o,deweerdt/h2o,devnexen/h2o,h2o/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,deweerdt/h2o,cwyang/h2o,deweerdt/h2o,devnexen/h2o,devnexen/h2o,devnexen/h2o,cwyang/h2o,deweerdt/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,yannick/h2o,yannick/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,yannick/h2o,cwyang/h2o,deweerdt/h2o,deweerdt/h2o,h2o/h2o,cwyang/h2o,deweerdt/h2o,devnexen/h2o,cwyang/h2o,yannick/h2o,yannick/h2o,h2o/h2o,h2o/h2o,deweerdt/h2o,devnexen/h2o