The kmem enabled memory cgroup cannot be fully released unless all associated kmem_cache are "destroyed"

Solution Verified - Updated -


  • The kernel memory-limited memory-controlled cgroup cannot be released unless the root kmem_cache is explicitly destroyed.

  • While attempting to create a cgroup under the memory resource controller the error cannot allocate memory is returned. For example:

    # mkdir /sys/fs/cgroup/memory/kubepods/burstable/podff4b0b02-34fd-49bb-8cfa-98a81316ab3c: cannot allocate memory


  • Red Hat Enterprise Linux (RHEL) 7

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content