Origin PR: https://github.com/openshift/origin/pull/19028
verify on v3.10.0-0.46.0 //Step to verify (cpu-cfs-quota=false + with limits) 1. Create a pod without limits 2. rsh into pod run 'dd if=/dev/zero of=/dev/null' 3. In another terminal rsh into pod and run 'while true; do sleep 4; ps aux|grep dd ; done' The cpu usage is about 99% for one core. 4. The the host which the pod running, using `htop` to watch the cpu usage. one of the four cpu core usage is about 99%. sh-4.2# while true; do sleep 4; ps aux|grep dd |grep -v grep; done root 151 135 0.0 4348 344 ? R+ 08:04 0:01 dd if=/dev/zero of=/dev/null root 151 107 0.0 4348 344 ? R+ 08:04 0:05 dd if=/dev/zero of=/dev/null root 151 103 0.0 4348 344 ? R+ 08:04 0:09 dd if=/dev/zero of=/dev/null root 151 102 0.0 4348 344 ? R+ 08:04 0:13 dd if=/dev/zero of=/dev/null root 151 102 0.0 4348 344 ? R+ 08:04 0:17 dd if=/dev/zero of=/dev/null root 151 101 0.0 4348 344 ? R+ 08:04 0:21 dd if=/dev/zero of=/dev/null root 151 101 0.0 4348 344 ? R+ 08:04 0:25 dd if=/dev/zero of=/dev/null root 151 101 0.0 4348 344 ? R+ 08:04 0:29 dd if=/dev/zero of=/dev/null root 151 101 0.0 4348 344 ? R+ 08:04 0:33 dd if=/dev/zero of=/dev/null root 151 101 0.0 4348 344 ? R+ 08:04 0:37 dd if=/dev/zero of=/dev/null root 151 100 0.0 4348 344 ? R+ 08:04 0:41 dd if=/dev/zero of=/dev/null root 151 100 0.0 4348 344 ? R+ 08:04 0:45 dd if=/dev/zero of=/dev/null
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:1816