Hi Haomai: in current implement why do not call stack->stop() in asyncmsg::wait(), if so we could join the works. but now the works will be joined in ~CephContext, and when _associated_objs be deleted... we find that map_cache may leak some osdmapref, maybe because the works still work when OSD destruct... regards! -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html