Index: /trunk/src/VBox/VMM/VMMR0/TRPMR0A.asm
===================================================================
--- /trunk/src/VBox/VMM/VMMR0/TRPMR0A.asm	(revision 399)
+++ /trunk/src/VBox/VMM/VMMR0/TRPMR0A.asm	(revision 400)
@@ -64,5 +64,6 @@
     pushfd                              ; RFLAGS
     and     dword [rsp], ~X86_EFL_IF
-    push    cs                          ; CS
+    mov     ax, cs
+    push    rax                         ; CS
     mov     rax, .return                ; RIP
     push    rax