Index: /trunk/src/VBox/ValidationKit/utils/fs/FsPerf.cpp
===================================================================
--- /trunk/src/VBox/ValidationKit/utils/fs/FsPerf.cpp	(revision 77006)
+++ /trunk/src/VBox/ValidationKit/utils/fs/FsPerf.cpp	(revision 77007)
@@ -2236,4 +2236,5 @@
 # ifdef RT_OS_WINDOWS
         HANDLE hSection;
+        pbMapping = NULL;
         for (;; cbMapping /= 2)
         {