On Thu, Apr 02, 2020 at 12:19:54PM -0400, Qian Cai wrote: > > > > On Apr 2, 2020, at 11:54 AM, Paul E. McKenney <paulmck@xxxxxxxxxx> wrote: > > > > I do run this combination quite frequently, but only as part of > > rcutorture, which might not be a representative workload. For one thing, > > it has a minimal userspace consisting only of a trivial init program. > > I don't recall having ever seen this. (I have seen one recent complaint > > about an IPI being sent to an offline CPU, but I cannot prove that this > > was not due to RCU bugs that I was chasing at the time.) > > Yes, a trivial init is tough while running systemd should be able to catch it as it will use cgroup. Not planning to add systemd to my rcutorture runs. ;-) Thanx, Paul