Move HighWaterMark to the top of the struct in order to fix arm, second time

pkg/controller/controller_utils.go

@@ -219,6 +219,8 @@ type Expectations interface {
 
 // ControlleeExpectations track controllee creates/deletes.
 type ControlleeExpectations struct {
+	// Important: Since these two int64 fields are using sync/atomic, they have to be at the top of the struct due to a bug on 32-bit platforms
+	// See: https://golang.org/pkg/sync/atomic/ for more information
 	add       int64
 	del       int64
 	key       string

pkg/genericapiserver/tunneler.go

@@ -46,14 +46,17 @@ type Tunneler interface {
 }
 
 type SSHTunneler struct {
+	// Important: Since these two int64 fields are using sync/atomic, they have to be at the top of the struct due to a bug on 32-bit platforms
+	// See: https://golang.org/pkg/sync/atomic/ for more information
+	lastSync       int64 // Seconds since Epoch
+	lastSSHKeySync int64 // Seconds since Epoch
+
 	SSHUser        string
 	SSHKeyfile     string
 	InstallSSHKey  InstallSSHKey
 	HealthCheckURL *url.URL
 
 	tunnels        *ssh.SSHTunnelList
-	lastSync       int64 // Seconds since Epoch
-	lastSSHKeySync int64 // Seconds since Epoch
 	lastSyncMetric prometheus.GaugeFunc
 	clock          clock.Clock
 

pkg/storage/cacher.go

@@ -130,6 +130,13 @@ func (i *indexedWatchers) terminateAll(objectType reflect.Type) {
 // Cacher implements storage.Interface (although most of the calls are just
 // delegated to the underlying storage).
 type Cacher struct {
+	// HighWaterMarks for performance debugging.
+	// Important: Since HighWaterMark is using sync/atomic, it has to be at the top of the struct due to a bug on 32-bit platforms
+	// See: https://golang.org/pkg/sync/atomic/ for more information
+	incomingHWM HighWaterMark
+	// Incoming events that should be dispatched to watchers.
+	incoming chan watchCacheEvent
+
 	sync.RWMutex
 
 	// Before accessing the cacher's cache, wait for the ready to be ok.
@@ -164,10 +171,6 @@ type Cacher struct {
 	watcherIdx int
 	watchers   indexedWatchers
 
-	// Incoming events that should be dispatched to watchers.
-	incoming    chan watchCacheEvent
-	incomingHWM HighWaterMark
-
 	// Handling graceful termination.
 	stopLock sync.RWMutex
 	stopped  bool