Index: /trunk/src/VBox/VMM/VMMR3/PDMAsyncCompletion.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMR3/PDMAsyncCompletion.cpp	(revision 43598)
+++ /trunk/src/VBox/VMM/VMMR3/PDMAsyncCompletion.cpp	(revision 43599)
@@ -945,4 +945,6 @@
     else if (cbReq & ((size_t)_4K - 1))
         STAM_REL_COUNTER_INC(&pEndpoint->StatReqsUnaligned4K);
+    else if (cbReq & ((size_t)_8K - 1))
+        STAM_REL_COUNTER_INC(&pEndpoint->StatReqsUnaligned8K);
 }
 
@@ -1206,4 +1208,13 @@
                              "Number of requests which size is not aligned to 4KB",
                              "/PDM/AsyncCompletion/File/%s/ReqsUnaligned4K",
+                             RTPathFilename(pEndpoint->pszUri));
+    }
+
+    if (RT_SUCCESS(rc))
+    {
+        rc = STAMR3RegisterF(pVM, &pEndpoint->StatReqsUnaligned8K, STAMTYPE_COUNTER,
+                             STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES,
+                             "Number of requests which size is not aligned to 8KB",
+                             "/PDM/AsyncCompletion/File/%s/ReqsUnaligned8K",
                              RTPathFilename(pEndpoint->pszUri));
     }
@@ -1250,4 +1261,5 @@
     STAMR3Deregister(pVM, &pEndpoint->StatReqsUnaligned512);
     STAMR3Deregister(pVM, &pEndpoint->StatReqsUnaligned4K);
+    STAMR3Deregister(pVM, &pEndpoint->StatReqsUnaligned8K);
 }
 
Index: /trunk/src/VBox/VMM/include/PDMAsyncCompletionInternal.h
===================================================================
--- /trunk/src/VBox/VMM/include/PDMAsyncCompletionInternal.h	(revision 43598)
+++ /trunk/src/VBox/VMM/include/PDMAsyncCompletionInternal.h	(revision 43599)
@@ -228,4 +228,5 @@
     STAMCOUNTER                                 StatReqsUnaligned512;
     STAMCOUNTER                                 StatReqsUnaligned4K;
+    STAMCOUNTER                                 StatReqsUnaligned8K;
     /** @} */
     /** @name Request completion time statistics.