@@ -569,7 +569,7 @@ func NewDaemon(config *Config, registryService registry.Service, containerdRemot

 	// Plugin system initialization should happen before restore. Do not change order.

 	d.pluginManager, err = plugin.NewManager(plugin.ManagerConfig{

 		Root:               filepath.Join(config.Root, "plugins"),

-		ExecRoot:           "/run/docker/plugins", // possibly needs fixing

+		ExecRoot:           getPluginExecRoot(config.Root),

 		Store:              d.PluginStore,

 		Executor:           containerdRemote,

 		RegistryService:    registryService,

@@ -12,6 +12,14 @@ import (

 	"github.com/docker/docker/pkg/mount"

 )

+// On Linux, plugins use a static path for storing execution state,

+// instead of deriving path from daemon's exec-root. This is because

+// plugin socket files are created here and they cannot exceed max

+// path length of 108 bytes.

+func getPluginExecRoot(root string) string {

+	return "/run/docker/plugins"

+}

+

 func (daemon *Daemon) cleanupMountsByID(id string) error {

 	logrus.Debugf("Cleaning up old mountid %s: start.", id)

 	f, err := os.Open("/proc/self/mountinfo")

@@ -3,6 +3,7 @@ package daemon

 import (

 	"fmt"

 	"os"

+	"path/filepath"

 	"strings"

 	"github.com/Microsoft/hcsshim"

@@ -37,6 +38,11 @@ const (

 	windowsMinCPUCount   = 1

 )

+// Windows has no concept of an execution state directory. So use config.Root here.

+func getPluginExecRoot(root string) string {

+	return filepath.Join(root, "plugins")

+}

+

 func getBlkioWeightDevices(config *containertypes.HostConfig) ([]blkiodev.WeightDevice, error) {

 	return nil, nil

 }