- Use volatile with PagesLocked and MdlAddress. Fixes bug #3674.

- For safety may have to declare all variable used in except this way.

svn path=/trunk/; revision=38077

reactos/ntoskrnl/mm/virtual.c

@@ -65,9 +65,9 @@ MiDoMappedCopy(IN PEPROCESS SourceProcess,
     PMDL Mdl = (PMDL)MdlBuffer;
     SIZE_T TotalSize, CurrentSize, RemainingSize;
     volatile BOOLEAN FailedInProbe = FALSE, FailedInMapping = FALSE, FailedInMoving;
-    BOOLEAN PagesLocked;
+    volatile BOOLEAN PagesLocked;
     PVOID CurrentAddress = SourceAddress, CurrentTargetAddress = TargetAddress;
-    PVOID MdlAddress;
+    volatile PVOID MdlAddress;
     KAPC_STATE ApcState;
     BOOLEAN HaveBadAddress;
     ULONG_PTR BadAddress;