diff --git a/audio/6.0/IStream.hal b/audio/6.0/IStream.hal
index 1f62017..d7d3c84 100644
--- a/audio/6.0/IStream.hal
+++ b/audio/6.0/IStream.hal
@@ -277,7 +277,7 @@
      * @return retval OK in case the success.
      *                NOT_SUPPORTED on non mmap mode streams
      *                NOT_INITIALIZED in case of memory allocation error
-     *                INVALID_ARGUMENTS if the requested buffer size is too large
+     *                INVALID_ARGUMENTS if the requested buffer size is invalid
      *                INVALID_STATE if called out of sequence
      * @return info    a MmapBufferInfo struct containing information on the MMMAP buffer created.
      */
diff --git a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
index 30f8a7a..7e931ff 100644
--- a/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/all-versions/vts/functional/6.0/AudioPrimaryHidlHalTest.cpp
@@ -100,7 +100,8 @@
                             special = true;
                         }
                         if ((flags & AUDIO_OUTPUT_FLAG_DIRECT) &&
-                            !(flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC)) {
+                            !(flags &
+                              (AUDIO_OUTPUT_FLAG_HW_AV_SYNC | AUDIO_OUTPUT_FLAG_MMAP_NOIRQ))) {
                             result.emplace_back(device, config,
                                                 AudioOutputFlag(AUDIO_OUTPUT_FLAG_DIRECT));
                             special = true;
diff --git a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
index 88494f5..6fc9339 100644
--- a/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
+++ b/audio/core/all-versions/vts/functional/AudioPrimaryHidlHalTest.h
@@ -1203,19 +1203,17 @@
         waitForStreamDestruction())
 // clang-format on
 
-static void testCreateTooBigMmapBuffer(IStream* stream) {
-    MmapBufferInfo info;
-    Result res;
-    // Assume that int max is a value too big to be allocated
-    // This is true currently with a 32bit media server, but might not when it
-    // will run in 64 bit
-    auto minSizeFrames = std::numeric_limits<int32_t>::max();
-    ASSERT_OK(stream->createMmapBuffer(minSizeFrames, returnIn(res, info)));
-    ASSERT_RESULT(invalidArgsOrNotSupported, res);
+static void testMmapBufferOfInvalidSize(IStream* stream) {
+    for (int32_t value : {-1, 0, std::numeric_limits<int32_t>::max()}) {
+        MmapBufferInfo info;
+        Result res;
+        EXPECT_OK(stream->createMmapBuffer(value, returnIn(res, info)));
+        EXPECT_RESULT(invalidArgsOrNotSupported, res) << "value=" << value;
+    }
 }
 
-TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer too big should fail",
-               testCreateTooBigMmapBuffer(stream.get()))
+TEST_IO_STREAM(CreateTooBigMmapBuffer, "Create mmap buffer of invalid size must fail",
+               testMmapBufferOfInvalidSize(stream.get()))
 
 static void testGetMmapPositionOfNonMmapedStream(IStream* stream) {
     Result res;