On Fri, Oct 07, 2016 at 03:38:23PM -0400, Joseph Salisbury wrote: > Hello Peter, > > A kernel bug report was opened against Ubuntu [0]. After a kernel > bisect, it was found that reverting the following commit resolved this bug: > > commit 3d30544f02120b884bba2a9466c87dba980e3be5 > Author: Peter Zijlstra <pet...@infradead.org> > Date: Tue Jun 21 14:27:50 2016 +0200 > > sched/fair: Apply more PELT fixes
That commit doesn't revert cleanly, did you take out more? > The regression was introduced as of v4.8-rc1. The bug can be reproduced > on an X1 Carbon with the following: > stress -c $your_total_cpu_cores > > I was hoping to get your feedback, since you are the patch author. Do > you think gathering any additional data will help diagnose this issue, > or would it be best to submit a revert request? I'll try and have a look asap, but I'm traveling next week so it might a tad slower than normal. If you could provide a /proc/sched_debug dump while the thing is running that'd might be useful. Thanks!
