--- xnu/xnu-792.17.14/iokit/Kernel/IOStartIOKit.cpp
+++ xnu/xnu-792.22.5/iokit/Kernel/IOStartIOKit.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -43,6 +43,7 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>
+#include <IOKit/pwr_mgt/IOPMinformeeList.h>
 
 #include <IOKit/assert.h>
 
@@ -51,6 +52,7 @@
 extern "C" {
 
 extern void OSlibkernInit (void);
+extern void ml_hpet_cfg(uint32_t, uint32_t);
 
 #include <kern/clock.h>
 
@@ -65,6 +67,7 @@
 #ifndef i386
 	IOService::waitForService(
 		IOService::resourceMatching("IONVRAM"), &t );
+
 #endif
 
     clock_initialize_calendar();
@@ -156,6 +159,9 @@
     IOUserClient::initialize();
     IOMemoryDescriptor::initialize();
 
+    // Initializes IOPMinformeeList class-wide shared lock
+    IOPMinformeeList::getSharedRecursiveLock();
+
     obj = OSString::withCString( version );
     assert( obj );
     if( obj ) {