diff --git a/pkg/hostman/guestman/qemu-kvm.go b/pkg/hostman/guestman/qemu-kvm.go
index 240a5ffca5..874964bdfb 100644
--- a/pkg/hostman/guestman/qemu-kvm.go
+++ b/pkg/hostman/guestman/qemu-kvm.go
@@ -1712,7 +1712,7 @@ func (s *SKVMGuestInstance) pyLauncherPath() string {
 }
 
 func (s *SKVMGuestInstance) scriptStart(ctx context.Context) error {
-	output, err := procutils.NewRemoteCommandAsFarAsPossible("python2", s.pyLauncherPath()).Output()
+	output, err := procutils.NewRemoteCommandAsFarAsPossible("python", s.pyLauncherPath()).Output()
 	if err != nil {
 		return fmt.Errorf("Start VM Failed %s %s", output, err)
 	}
diff --git a/pkg/hostman/guestman/qemu-kvmhelper.go b/pkg/hostman/guestman/qemu-kvmhelper.go
index d585e080e0..ee3eeaac2e 100644
--- a/pkg/hostman/guestman/qemu-kvmhelper.go
+++ b/pkg/hostman/guestman/qemu-kvmhelper.go
@@ -63,8 +63,7 @@ const (
 	DISK_DRIVER_SATA   = qemu.DISK_DRIVER_SATA
 )
 
-const guestLauncher = `
-#!/usr/bin/env python
+const guestLauncher = `#!/usr/bin/env python
 import sys
 import os
 import time
@@ -111,7 +110,7 @@ else:
         logfd = os.open('%s', os.O_RDWR|os.O_CREAT|os.O_APPEND)
         os.dup2(logfd, 1)
         os.dup2(logfd, 2)
-        os.write(logfd, '%%s Run command: %%s\n' %% (time.strftime('%%Y-%%m-%%d %%H:%%M:%%S', time.localtime()), cmd))
+        os.write(logfd, str.encode('%%s Run command: %%s\n' %% (time.strftime('%%Y-%%m-%%d %%H:%%M:%%S', time.localtime()), cmd)))
         os.close(logfd)
 
         if os.execv(cmd[0], cmd) < 0:
diff --git a/pkg/util/cgrouputils/cgrouputils.go b/pkg/util/cgrouputils/cgrouputils.go
index a4dc7cd5c9..a68b0dc636 100644
--- a/pkg/util/cgrouputils/cgrouputils.go
+++ b/pkg/util/cgrouputils/cgrouputils.go
@@ -380,10 +380,14 @@ func (c *CGroupTask) init() bool {
 	re := regexp.MustCompile(`\s+`)
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
+		// #subsys_name    hierarchy       num_cgroups     enabled
 		line := scanner.Text()
 		if line[0] != '#' {
 			parts := re.Split(line, -1)
 			module := parts[0]
+			if parts[3] == "0" { // disabled
+				continue
+			}
 			if !ModuleIsMounted(module) {
 				moduleDir := path.Join(cgroupsPath, module)
 				if !fileutils2.Exists(moduleDir) {