On Thu, Oct 22, 2015 at 05:49:22PM +0200, Michal Hocko wrote: > I am confused. What makes rescuer to not run? Nothing seems to be > hogging CPUs, we are just out of workers which are loopin in the > allocator but that is preemptible context. It's concurrency management. Workqueue thinks that the pool is making positive forward progress and doesn't schedule anything else for execution while that work item is burning cpu cycles. Thanks. -- tejun -- 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>