Improve process creation and cleaning

process/unknown.go

@@ -9,8 +9,18 @@ var (
 		ParentPid: -1,
 		Name:      "Unknown Processes",
 	}
+
+	// OSProcess is used to represent the Kernel.
+	OSProcess = &Process{
+		UserID:    0,
+		UserName:  "Kernel",
+		Pid:       0,
+		ParentPid: 0,
+		Name:      "Operating System",
+	}
 )
 
 func init() {
 	UnknownProcess.Save()
+	OSProcess.Save()
 }