diff --git a/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java b/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
index a2e4044016f..85a8fa0e4fb 100755
--- a/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
+++ b/plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
@@ -289,6 +289,7 @@ ServerResource {
     private int _migrateSpeed;
 
     private long _hvVersion;
+    private long _kernelVersion;
     private KVMHAMonitor _monitor;
     private final String _SSHKEYSPATH = "/root/.ssh";
     private final String _SSHPRVKEYPATH = _SSHKEYSPATH + File.separator
@@ -846,6 +847,10 @@ ServerResource {
         storageProcessor.configure(name, params);
         storageHandler = new StorageSubsystemCommandHandlerBase(storageProcessor);
 
+        String unameKernelVersion = Script.runSimpleBashScript("uname -r");
+        String[] kernelVersions = unameKernelVersion.split("[\\.\\-]");
+        _kernelVersion = Integer.parseInt(kernelVersions[0]) * 1000 * 1000 + Integer.parseInt(kernelVersions[1]) * 1000 + Integer.parseInt(kernelVersions[2]);
+
         return true;
     }
 
@@ -3312,10 +3317,7 @@ ServerResource {
 
             // pass cmdline info to system vms
             if (vmSpec.getType() != VirtualMachine.Type.User) {
-                String unameKernelVersion = Script.runSimpleBashScript("uname -r");
-                String[] kernelVersions = unameKernelVersion.split("[\\.\\-]");
-                long kernelVersion = Integer.parseInt(kernelVersions[0]) * 1000 * 1000 + Integer.parseInt(kernelVersions[1]) * 1000 + Integer.parseInt(kernelVersions[2]);
-                if ((kernelVersion < 2006034) && (conn.getVersion() < 1001000)) { // CLOUDSTACK-2823: try passCmdLine some times if kernel < 2.6.34 and qemu < 1.1.0 on hypervisor (for instance, CentOS 6.4)
+                if ((_kernelVersion < 2006034) && (conn.getVersion() < 1001000)) { // CLOUDSTACK-2823: try passCmdLine some times if kernel < 2.6.34 and qemu < 1.1.0 on hypervisor (for instance, CentOS 6.4)
                     for (int count = 0; count < 10; count ++) {
                         passCmdLine(vmName, vmSpec.getBootArgs());
                         try {