Index: /trunk/src/VBox/Devices/PC/DevIoApic.cpp
===================================================================
--- /trunk/src/VBox/Devices/PC/DevIoApic.cpp	(revision 84665)
+++ /trunk/src/VBox/Devices/PC/DevIoApic.cpp	(revision 84666)
@@ -432,5 +432,4 @@
      * See Intel spec. 10.11.2 "Message Data Register Format".
      */
-    memset(pIntr, 0, sizeof(*pIntr));
     pIntr->u8Dest         = pMsi->MsiAddr.n.u8DestId;
     pIntr->u8DestMode     = pMsi->MsiAddr.n.u1DestMode;
@@ -451,5 +450,4 @@
 DECLINLINE(void) ioapicGetMsiFromApicIntr(PCXAPICINTR pIntr, PMSIMSG pMsi)
 {
-    memset(pMsi, 0, sizeof(*pMsi));
     pMsi->MsiAddr.n.u12Addr        = VBOX_MSI_ADDR_BASE >> VBOX_MSI_ADDR_SHIFT;
     pMsi->MsiAddr.n.u8DestId       = pIntr->u8Dest;
@@ -862,4 +860,5 @@
 
     XAPICINTR ApicIntr;
+    RT_ZERO(ApicIntr);
     ioapicGetApicIntrFromMsi(&MsiMsg, &ApicIntr);