On Wed, 21 Oct 2015, Michal Hocko wrote: > Because all the WQ workers are stuck somewhere, maybe in the memory > allocation which cannot make any progress and the vmstat update work is > queued behind them. > > At least this is my current understanding. Eww. Maybe need a queue that does not do such evil things as memory allocation? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>