Change:
return nil } <ins> // validate PV/PVC, create and verify writer pod, delete PVC and PV. Ensure // all of these steps were successful. Return the pv and pvc to reflect that // these resources have been retrieved again (Get). // Note: the pv and pvc are returned back to the It() caller so that the //   AfterEach func can delete these objects if they are not nil. func completeTest(f *framework.Framework, c *client.Client, ns string, pv *api.PersistentVolume, pvc *api.PersistentVolumeClaim) (*api.PersistentVolume, *api.PersistentVolumeClaim, error) { // 1. verify that the PV and PVC have binded correctly By("Validating the PV-PVC binding") pv, pvc, err := waitAndValidatePVandPVC(c, ns, pv, pvc) if err != nil { return pv, pvc, err } // 2. create the nfs writer pod, test if the write was successful, //    then delete the pod and verify that it was deleted By("Checking pod has write access to PersistentVolume") if err = createWaitAndDeletePod(f, c, ns, pvc.Name); err != nil { return pv, pvc, err } // 3. delete the PVC before deleting PV, wait for PV to be "Available" By("Deleting the PVC to invoke the recycler") pv, pvc, err = deletePVCandValidatePV(c, ns, pvc, pv) if err != nil { return pv, pvc, err } // 4. cleanup by deleting the pv By("Deleting the PV") if pv, err = deletePersistentVolume(c, pv); err != nil { return pv, pvc, err } return pv, pvc, nil } </ins> var _ = framework.KubeDescribe("PersistentVolumes", func() { // global vars for the It() tests below

Discussion:
Context: NodeSwap feature gate was recently . Currently, as per , swap is only supported with cgroup v2 - cgroup v1 is no longer supported. For this reason, we decided to fail kubelet if NodeSwap feature gate is enabled and the node runs with cgroup v1. This would help prevent any surprises for the user by failing as soon as possible. This effort is being implemented in this PR: The problem: Currently, swap jobs are running with cgroup v1. Swap tests were in a way that they first check on which environment they're being run (e.g. which cgroup version? is NodeSwap FG enabled? Which swapBehavior is defined? etc) and then expect the right behavior to take place. With v1, the tests expect the containers to be defined without swap access. While the tests pass, they are much less valuable, since all they check is that swap is disabled for v1 workloads. The tests would be much more valuable if they would run with v2, therefore actually ensure that proper swap limitations are configured. In addition, is dependent on these changes, since as of now the jobs immediately fail with this PR since kubelet fails on an environment with cgroup v1 and swap enabled. What needs to change: [x] CRI-O swap related jobs should be defined to run with cgroup v2 (e.g. ) [x] containerd swap related jobs should be defined to run with cgroup v2 (e.g. ). Future work: In the future, we might consider introducing more jobs to check swap. Ideally, both and would be tested, perhaps by periodic jobs.
This issue is currently awaiting triage. If a SIG or subproject determines this is a relevant issue, they will accept it by applying the label and provide further guidance. The label can be by org members by writing in a comment. <detailsInstructions for interacting with me using PR comments are available . If you have questions or suggestions related to my behavior, please file an issue against the repository. </details
/sig node
/sig testing
/reopen
Reopened this issue. <detailsIn response to : /reopen Instructions for interacting with me using PR comments are available . If you have questions or suggestions related to my behavior, please file an issue against the repository. </details