Description of problem: Kubelet's were setting the wrong cgroup memory limit on the kubepods.slice. We need to bump the rhcos version to this version or later to pickup the fix (in 4.5 and 4.4) ref: https://bugzilla.redhat.com/show_bug.cgi?id=1802687
Per https://github.com/openshift/installer/blob/release-4.5/data/data/rhcos.json, rhcos image is bumped to rhcos-44.81.202002241126-0. Trigger a ipi-on-aws install with 4.5.0-0.nightly-2020-03-06-190457, it is using "rhcos-44.81.202002241126-0" as boot image.
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-2020:2409