diff --git a/components/engine/daemon/cluster/convert/network.go b/components/engine/daemon/cluster/convert/network.go
index 44f5f56466..34660fc4ff 100644
--- a/components/engine/daemon/cluster/convert/network.go
+++ b/components/engine/daemon/cluster/convert/network.go
@@ -140,13 +140,13 @@ func swarmPortConfigToAPIPortConfig(portConfig *swarmapi.PortConfig) types.PortC
 func BasicNetworkFromGRPC(n swarmapi.Network) basictypes.NetworkResource {
 	spec := n.Spec
 	var ipam networktypes.IPAM
-	if spec.IPAM != nil {
-		if spec.IPAM.Driver != nil {
-			ipam.Driver = spec.IPAM.Driver.Name
-			ipam.Options = spec.IPAM.Driver.Options
+	if n.IPAM != nil {
+		if n.IPAM.Driver != nil {
+			ipam.Driver = n.IPAM.Driver.Name
+			ipam.Options = n.IPAM.Driver.Options
 		}
-		ipam.Config = make([]networktypes.IPAMConfig, 0, len(spec.IPAM.Configs))
-		for _, ic := range spec.IPAM.Configs {
+		ipam.Config = make([]networktypes.IPAMConfig, 0, len(n.IPAM.Configs))
+		for _, ic := range n.IPAM.Configs {
 			ipamConfig := networktypes.IPAMConfig{
 				Subnet:     ic.Subnet,
 				IPRange:    ic.Range,
diff --git a/components/engine/daemon/graphdriver/overlay/overlay.go b/components/engine/daemon/graphdriver/overlay/overlay.go
index 2e0bec5bc4..6932e4df81 100644
--- a/components/engine/daemon/graphdriver/overlay/overlay.go
+++ b/components/engine/daemon/graphdriver/overlay/overlay.go
@@ -12,6 +12,7 @@ import (
 	"path"
 	"path/filepath"
 	"strconv"
+	"strings"
 
 	"github.com/docker/docker/daemon/graphdriver"
 	"github.com/docker/docker/daemon/graphdriver/copy"
@@ -22,6 +23,7 @@ import (
 	"github.com/docker/docker/pkg/idtools"
 	"github.com/docker/docker/pkg/locker"
 	"github.com/docker/docker/pkg/mount"
+	"github.com/docker/docker/pkg/parsers"
 	"github.com/docker/docker/pkg/system"
 	"github.com/opencontainers/selinux/go-selinux/label"
 	"github.com/sirupsen/logrus"
@@ -95,6 +97,8 @@ func (d *naiveDiffDriverWithApply) ApplyDiff(id, parent string, diff io.Reader)
 // of that. This means all child images share file (but not directory)
 // data with the parent.
 
+type overlayOptions struct{}
+
 // Driver contains information about the home directory and the list of active mounts that are created using this driver.
 type Driver struct {
 	home          string
@@ -115,6 +119,10 @@ func init() {
 // If an overlay filesystem is not supported over an existing filesystem then
 // error graphdriver.ErrIncompatibleFS is returned.
 func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {
+	_, err := parseOptions(options)
+	if err != nil {
+		return nil, err
+	}
 
 	if err := supportsOverlay(); err != nil {
 		return nil, graphdriver.ErrNotSupported
@@ -176,6 +184,22 @@ func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (grap
 	return NaiveDiffDriverWithApply(d, uidMaps, gidMaps), nil
 }
 
+func parseOptions(options []string) (*overlayOptions, error) {
+	o := &overlayOptions{}
+	for _, option := range options {
+		key, _, err := parsers.ParseKeyValueOpt(option)
+		if err != nil {
+			return nil, err
+		}
+		key = strings.ToLower(key)
+		switch key {
+		default:
+			return nil, fmt.Errorf("overlay: unknown option %s", key)
+		}
+	}
+	return o, nil
+}
+
 func supportsOverlay() error {
 	// We can try to modprobe overlay first before looking at
 	// proc/filesystems for when overlay is supported
diff --git a/components/engine/daemon/logger/copier.go b/components/engine/daemon/logger/copier.go
index ae86777f33..e24272fa6d 100644
--- a/components/engine/daemon/logger/copier.go
+++ b/components/engine/daemon/logger/copier.go
@@ -81,6 +81,7 @@ func (c *Copier) copySrc(name string, src io.Reader) {
 				read, err := src.Read(buf[n:upto])
 				if err != nil {
 					if err != io.EOF {
+						logReadsFailedCount.Inc(1)
 						logrus.Errorf("Error scanning log stream: %s", err)
 						return
 					}
@@ -120,6 +121,7 @@ func (c *Copier) copySrc(name string, src io.Reader) {
 					}
 
 					if logErr := c.dst.Log(msg); logErr != nil {
+						logWritesFailedCount.Inc(1)
 						logrus.Errorf("Failed to log msg %q for logger %s: %s", msg.Line, c.dst.Name(), logErr)
 					}
 				}
@@ -143,6 +145,7 @@ func (c *Copier) copySrc(name string, src io.Reader) {
 						partialid = stringid.GenerateRandomID()
 						ordinal = 1
 						firstPartial = false
+						totalPartialLogs.Inc(1)
 					} else {
 						msg.Timestamp = partialTS
 					}
@@ -151,6 +154,7 @@ func (c *Copier) copySrc(name string, src io.Reader) {
 					hasMorePartial = true
 
 					if logErr := c.dst.Log(msg); logErr != nil {
+						logWritesFailedCount.Inc(1)
 						logrus.Errorf("Failed to log msg %q for logger %s: %s", msg.Line, c.dst.Name(), logErr)
 					}
 					p = 0
diff --git a/components/engine/daemon/logger/metrics.go b/components/engine/daemon/logger/metrics.go
new file mode 100644
index 0000000000..b7dfd38ec2
--- /dev/null
+++ b/components/engine/daemon/logger/metrics.go
@@ -0,0 +1,21 @@
+package logger // import "github.com/docker/docker/daemon/logger"
+
+import (
+	"github.com/docker/go-metrics"
+)
+
+var (
+	logWritesFailedCount metrics.Counter
+	logReadsFailedCount  metrics.Counter
+	totalPartialLogs     metrics.Counter
+)
+
+func init() {
+	loggerMetrics := metrics.NewNamespace("logger", "", nil)
+
+	logWritesFailedCount = loggerMetrics.NewCounter("log_write_operations_failed", "Number of log write operations that failed")
+	logReadsFailedCount = loggerMetrics.NewCounter("log_read_operations_failed", "Number of log reads from container stdio that failed")
+	totalPartialLogs = loggerMetrics.NewCounter("log_entries_size_greater_than_buffer", "Number of log entries which are larger than the log buffer")
+
+	metrics.Register(loggerMetrics)
+}
diff --git a/components/engine/daemon/oci_linux.go b/components/engine/daemon/oci_linux.go
index 766701a416..49ba0e13c3 100644
--- a/components/engine/daemon/oci_linux.go
+++ b/components/engine/daemon/oci_linux.go
@@ -527,7 +527,7 @@ func setMounts(daemon *Daemon, s *specs.Spec, c *container.Container, mounts []c
 	//  - /dev/shm, in case IpcMode is none.
 	// While at it, also
 	//  - set size for /dev/shm from shmsize.
-	var defaultMounts []specs.Mount
+	defaultMounts := s.Mounts[:0]
 	_, mountDev := userMounts["/dev"]
 	for _, m := range s.Mounts {
 		if _, ok := userMounts[m.Destination]; ok {
diff --git a/components/engine/integration/network/inspect_test.go b/components/engine/integration/network/inspect_test.go
index b728da9d23..e88d739fd9 100644
--- a/components/engine/integration/network/inspect_test.go
+++ b/components/engine/integration/network/inspect_test.go
@@ -162,9 +162,19 @@ func noTasks(client client.ServiceAPIClient) func(log poll.LogT) poll.Result {
 // Check to see if Service and Tasks info are part of the inspect verbose response
 func validNetworkVerbose(network types.NetworkResource, service string, instances uint64) bool {
 	if service, ok := network.Services[service]; ok {
-		if len(service.Tasks) == int(instances) {
-			return true
+		if len(service.Tasks) != int(instances) {
+			return false
 		}
 	}
-	return false
+
+	if network.IPAM.Config == nil {
+		return false
+	}
+
+	for _, cfg := range network.IPAM.Config {
+		if cfg.Gateway == "" || cfg.Subnet == "" {
+			return false
+		}
+	}
+	return true
 }
diff --git a/components/engine/internal/test/daemon/plugin.go b/components/engine/internal/test/daemon/plugin.go
index fad9727161..9a7cc345ea 100644
--- a/components/engine/internal/test/daemon/plugin.go
+++ b/components/engine/internal/test/daemon/plugin.go
@@ -38,7 +38,7 @@ func (d *Daemon) PluginIsNotPresent(name string) func(poll.LogT) poll.Result {
 		if err != nil {
 			return poll.Error(err)
 		}
-		return poll.Continue("plugin %q exists")
+		return poll.Continue("plugin %q exists", name)
 	})
 }