On Wed, 3 Feb 2016 13:55:50 -0500 Steven Rostedt <rost...@goodmis.org> wrote:
> # grep dl /proc/sched_debug > dl_rq[0]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[1]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[2]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[3]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[4]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[5]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[6]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > dl_rq[7]: > .dl_nr_running : 0 > .dl_bw->bw : 996147 > .dl_bw->total_bw : -104857 > > They all went negative! > > Not good, but we can recover... Even though we can recover, I'm betting we can easily overcommit deadline tasks here. It probably wouldn't be too hard to come up with a test case that does so. -- Steve
