logger.Error(nil, "Failed to instantly swap NotReadyTaint to UnreachableTaint. Will try again in the next cycle")
			}
		} else if nc.markNodeForTainting(node, v1.ConditionUnknown) {
			logger.V(2).Info("Node is unresponsive. Adding it to the Taint queue", "node", klog.KObj(node), "timeStamp", decisionTimestamp)
		}
	case v1.ConditionTrue:
		removed, err := nc.markNodeAsReachable(ctx, node)
		if err != nil {

  /** All waiting threads. */
  @CheckForNull private volatile Waiter waiters;

  /** Constructor for use by subclasses. */
  protected AbstractFuture() {}

  // Gets and Timed Gets
  //
  // * Be responsive to interruption
  // * Don't create Waiter nodes if you aren't going to park, this helps reduce contention on the
  //   waiters field.
  // * Future completion is defined by when #value becomes non-null/non SetFuture

  /** All waiting threads. */
  @CheckForNull private volatile Waiter waiters;

  /** Constructor for use by subclasses. */
  protected AbstractFuture() {}

  // Gets and Timed Gets
  //
  // * Be responsive to interruption
  // * Don't create Waiter nodes if you aren't going to park, this helps reduce contention on the
  //   waiters field.
  // * Future completion is defined by when #value becomes non-null/non SetFuture

	// rate of 1 MB/ms, this is ~100 µs. Lower values have higher
	// overhead in the scan loop (the scheduler check may perform
	// a syscall, so its overhead is nontrivial). Higher values
	// make the system less responsive to incoming work.
	drainCheckThreshold = 100000

	// pagesPerSpanRoot indicates how many pages to scan from a span root
	// at a time. Used by special root marking.
	//

		if s.shouldStop() {
			break
		}

		// scavengeQuantum is the amount of memory we try to scavenge
		// in one go. A smaller value means the scavenger is more responsive
		// to the scheduler in case of e.g. preemption. A larger value means
		// that the overheads of scavenging are better amortized, so better
		// scavenging throughput.
		//