On Wed, 16 Aug 2017 15:07:25 -0400 Waiman Long <longman@xxxxxxxxxx> wrote: > I am thinking about maybe letting a RT task to sleep a tiny amount of > time instead of calling schedule(). Hopefully, that will allow a > lower-priority task to make forward progress. That is actually one of the ugly hacks we have in the PREEMPT_RT patch (and one of the things we need to fix before getting it to mainline). A simple msleep(1). -- Steve