On Sun, 02 Apr 2017 06:28:41 +0200 Mike Galbraith <efa...@gmx.de> wrote:
> Livelock can be triggered by setting kworkers to SCHED_FIFO, then > suspend/resume.. you come back from sleepy-land with a spinning > kworker. For whatever reason, I can only do that with an enterprise > like config, my standard config refuses to play, but no matter, it's > "Typical broken usage". > > (yield() should be rendered dead) The kernel is not normally built to have kworkers run at SCHED_FIFO. The user has do some action to alter the process priorities. I classify this as user error. We don't support killing kworker threads either.
