I don't want to present this topic; I merely noticed the problem. I nominate Jens Axboe and Michael Hocko as session leaders. See the thread here: https://lore.kernel.org/linux-mm/20190923111900.GH15392@xxxxxxxxxxxxxxxxxxxxxx/ Summary: Congestion is broken and has been for years, and everybody's system is sleeping waiting for congestion that will never clear. A good outcome for this meeting would be: - MM defines what information they want from the block stack. - Block stack commits to giving them that information.