--- a/arch/x86/realmode/rm/wakeup_asm.S	2013-05-02 17:20:25.266667541 +0200
+++ b/arch/x86/realmode/rm/wakeup_asm.S	2013-05-02 20:43:40.623334207 +0200
@@ -112,8 +112,8 @@
 
 	btl	$WAKEUP_BEHAVIOR_RESTORE_CR4, %edi
 	jnc	1f
-	movl	pmode_cr4, %eax
-	movl	%eax, %cr4
+	movl	pmode_cr4, %ecx
+	movl	%ecx, %cr4
 1:
 	btl	$WAKEUP_BEHAVIOR_RESTORE_EFER, %edi
 	jnc	1f