if client == nil {
				return errPeerNotReachable
			}
			return client.LoadServiceAccount(ctx, accessKey)
		}, idx, *client.host)
	}
	return ng.Wait()
}

// BackgroundHealStatus - returns background heal status of all peers
func (sys *NotificationSys) BackgroundHealStatus(ctx context.Context) ([]madmin.BgHealState, []NotificationPeerErr) {
	ng := WithNPeers(len(sys.peerClients))

// on the span set.
func (b *spanSet) reset() {
	head, tail := b.index.load().split()
	if head < tail {
		print("head = ", head, ", tail = ", tail, "\n")
		throw("attempt to clear non-empty span set")
	}
	top := head / spanSetBlockEntries
	if uintptr(top) < b.spineLen.Load() {
		// If the head catches up to the tail and the set is empty,
		// we may not clean up the block containing the head and tail

	}
	for {
		old := atomic.Load64((*uint64)(head))
		node.next = old
		if atomic.Cas64((*uint64)(head), old, new) {
			break
		}
	}
}

func (head *lfstack) pop() unsafe.Pointer {
	for {
		old := atomic.Load64((*uint64)(head))
		if old == 0 {
			return nil
		}
		node := lfstackUnpack(old)
		next := atomic.Load64(&node.next)
		if atomic.Cas64((*uint64)(head), old, next) {
			return unsafe.Pointer(node)
		}

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	heap[len(heap)-1].ev.time = 21
	heapUpdate(heap, len(heap)-1)
	checkHeap(t, heap)
	if heap[len(heap)-1].ev.time != 21 {
		t.Fatalf("heap update failed, expected %d as heap min: %s", 21, heapDebugString(heap))
	}

	// Update the last element to be smaller.
	heap[len(heap)-1].ev.time = 7
	heapUpdate(heap, len(heap)-1)
	checkHeap(t, heap)
	if heap[len(heap)-1].ev.time == 21 {

	type X struct {
		buf     [1]byte
		nextbuf []byte
		next    *X
	}
	var head *X
	for i := 0; i < 10; i++ {
		p := &X{}
		p.buf[0] = 42
		p.next = head
		if head != nil {
			p.nextbuf = head.buf[:]
		}
		head = p
		runtime.GC()
	}
	for p := head; p != nil; p = p.next {
		if p.buf[0] != 42 {
			t.Fatal("corrupted heap")
		}
	}
}

func TestGcRescan(t *testing.T) {
	type X struct {

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	return true
}

// mProf_NextCycle publishes the next heap profile cycle and creates a
// fresh heap profile cycle. This operation is fast and can be done
// during STW. The caller must call mProf_Flush before calling
// mProf_NextCycle again.
//
// This is called by mark termination during STW so allocations and
// frees after the world is started again count towards a new heap
// profiling cycle.
func mProf_NextCycle() {

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