fixed in attached PR
PR merged
Config a bm sno node with a max-pods of 500, create 420 namespaces, each with one deployment, and one pod with one container each. No workload being applied to the application running in the containers. Don't reproduce this issue, set it as verified.
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 (OpenShift Container Platform 4.8.25 bug fix update), 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-2021:5209