Comment 30 for bug 1656150

I also notice a very high CPU load in the hosts after running /etc/rc.local:

top - 11:00:15 up 6 min, 1 user, load average: 9.88, 4.09, 1.62
Tasks: 369 total, 9 running, 354 sleeping, 0 stopped, 6 zombie
%Cpu(s): 0.1 us, 5.7 sy, 0.0 ni, 94.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 13188960+total, 13057571+free, 746472 used, 567416 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 13023952+avail Mem

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
  884 root 20 0 52032 21652 17148 R 100.0 0.0 2:06.06 systemd-journal
 2235 root 20 0 0 0 0 S 25.9 0.0 0:29.72 kworker/1:2
  270 root 20 0 0 0 0 S 24.3 0.0 0:28.07 kworker/17:1
  272 root 20 0 0 0 0 R 23.9 0.0 0:27.08 kworker/4:1
  273 root 20 0 0 0 0 S 23.9 0.0 0:28.75 kworker/5:1
  267 root 20 0 0 0 0 S 23.3 0.0 0:27.92 kworker/3:1
   45 root 20 0 0 0 0 S 22.9 0.0 0:27.52 kworker/7:0
  235 root 20 0 0 0 0 S 22.3 0.0 0:25.20 kworker/0:2
  266 root 20 0 0 0 0 S 22.3 0.0 0:26.04 kworker/2:1
  274 root 20 0 0 0 0 S 22.3 0.0 0:26.84 kworker/21:1
  260 root 20 0 0 0 0 S 21.6 0.0 0:26.14 kworker/6:1
  276 root 20 0 0 0 0 S 21.3 0.0 0:23.96 kworker/20:1
  314 root 20 0 0 0 0 S 21.3 0.0 0:25.15 kworker/19:1
  316 root 20 0 0 0 0 S 20.6 0.0 0:24.92 kworker/23:1
  315 root 20 0 0 0 0 S 19.9 0.0 0:22.49 kworker/16:1
  275 root 20 0 0 0 0 S 19.6 0.0 0:22.25 kworker/18:1
  326 root 20 0 0 0 0 S 19.3 0.0 0:22.42 kworker/22:1
  233 root 20 0 0 0 0 S 16.9 0.0 0:17.46 kworker/12:1
  183 root 20 0 0 0 0 S 14.6 0.0 0:16.10 kworker/13:1
 1499 root 20 0 0 0 0 S 14.3 0.0 0:16.48 kworker/14:2
  208 root 20 0 0 0 0 S 14.0 0.0 0:16.64 kworker/11:1
  271 root 20 0 0 0 0 S 14.0 0.0 0:16.30 kworker/15:1
  320 root 20 0 0 0 0 S 13.6 0.0 0:14.60 kworker/28:1
  269 root 20 0 0 0 0 S 13.3 0.0 0:15.68 kworker/10:1
  268 root 20 0 0 0 0 S 12.3 0.0 0:14.36 kworker/9:1
  280 root 20 0 0 0 0 S 11.0 0.0 0:13.05 kworker/25:1
  281 root 20 0 0 0 0 S 11.0 0.0 0:12.36 kworker/31:1
  184 root 20 0 0 0 0 S 10.3 0.0 0:30.89 kworker/29:1
  278 root 20 0 0 0 0 S 10.3 0.0 0:12.57 kworker/30:1
  279 root 20 0 0 0 0 S 9.3 0.0 0:12.26 kworker/27:1
  277 root 20 0 0 0 0 S 8.0 0.0 0:09.98 kworker/26:1
  282 root 20 0 0 0 0 S 7.6 0.0 0:09.02 kworker/24:1
    8 root 20 0 0 0 0 S 1.3 0.0 0:01.80 rcu_sched
....