diff --git a/bluetooth/1.0/default/h4_protocol.cc b/bluetooth/1.0/default/h4_protocol.cc
index 163cc33..df40507 100644
--- a/bluetooth/1.0/default/h4_protocol.cc
+++ b/bluetooth/1.0/default/h4_protocol.cc
@@ -71,8 +71,10 @@
     ssize_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, 1));
     if (bytes_read != 1) {
       if (bytes_read == 0) {
-        LOG_ALWAYS_FATAL("%s: Unexpected EOF reading the packet type!",
-                         __func__);
+        // This is only expected if the UART got closed when shutting down.
+        ALOGE("%s: Unexpected EOF reading the packet type!", __func__);
+        sleep(5);  // Expect to be shut down within 5 seconds.
+        return;
       } else if (bytes_read < 0) {
         LOG_ALWAYS_FATAL("%s: Read packet type error: %s", __func__,
                          strerror(errno));
diff --git a/bluetooth/1.0/default/hci_packetizer.cc b/bluetooth/1.0/default/hci_packetizer.cc
index fde08ac..71f4328 100644
--- a/bluetooth/1.0/default/hci_packetizer.cc
+++ b/bluetooth/1.0/default/hci_packetizer.cc
@@ -56,9 +56,13 @@
       ssize_t bytes_read = TEMP_FAILURE_RETRY(
           read(fd, preamble_ + bytes_read_,
                preamble_size_for_type[packet_type] - bytes_read_));
-      if (bytes_read <= 0) {
-        LOG_ALWAYS_FATAL_IF((bytes_read == 0),
-                            "%s: Unexpected EOF reading the header!", __func__);
+      if (bytes_read == 0) {
+        // This is only expected if the UART got closed when shutting down.
+        ALOGE("%s: Unexpected EOF reading the header!", __func__);
+        sleep(5);  // Expect to be shut down within 5 seconds.
+        return;
+      }
+      if (bytes_read < 0) {
         LOG_ALWAYS_FATAL("%s: Read header error: %s", __func__,
                          strerror(errno));
       }
@@ -80,10 +84,13 @@
           fd,
           packet_.data() + preamble_size_for_type[packet_type] + bytes_read_,
           bytes_remaining_));
-      if (bytes_read <= 0) {
-        LOG_ALWAYS_FATAL_IF((bytes_read == 0),
-                            "%s: Unexpected EOF reading the payload!",
-                            __func__);
+      if (bytes_read == 0) {
+        // This is only expected if the UART got closed when shutting down.
+        ALOGE("%s: Unexpected EOF reading the payload!", __func__);
+        sleep(5);  // Expect to be shut down within 5 seconds.
+        return;
+      }
+      if (bytes_read < 0) {
         LOG_ALWAYS_FATAL("%s: Read payload error: %s", __func__,
                          strerror(errno));
       }
diff --git a/bluetooth/1.0/default/vendor_interface.cc b/bluetooth/1.0/default/vendor_interface.cc
index 6ce2f11..a8f5bb4 100644
--- a/bluetooth/1.0/default/vendor_interface.cc
+++ b/bluetooth/1.0/default/vendor_interface.cc
@@ -49,6 +49,7 @@
 bool recent_activity_flag;
 
 VendorInterface* g_vendor_interface = nullptr;
+std::mutex wakeup_mutex_;
 
 HC_BT_HDR* WrapPacketAndCopy(uint16_t event, const hidl_vec<uint8_t>& data) {
   size_t packet_size = data.size() + sizeof(HC_BT_HDR);
@@ -308,6 +309,7 @@
 }
 
 size_t VendorInterface::Send(uint8_t type, const uint8_t* data, size_t length) {
+  std::unique_lock<std::mutex> lock(wakeup_mutex_);
   recent_activity_flag = true;
 
   if (lpm_wake_deasserted == true) {
@@ -350,6 +352,7 @@
 
 void VendorInterface::OnTimeout() {
   ALOGV("%s", __func__);
+  std::unique_lock<std::mutex> lock(wakeup_mutex_);
   if (recent_activity_flag == false) {
     lpm_wake_deasserted = true;
     bt_vendor_lpm_wake_state_t wakeState = BT_VND_LPM_WAKE_DEASSERT;
diff --git a/compatibility_matrix.26.xml b/compatibility_matrix.1.xml
similarity index 100%
rename from compatibility_matrix.26.xml
rename to compatibility_matrix.1.xml
diff --git a/compatibility_matrix.27.xml b/compatibility_matrix.2.xml
similarity index 100%
rename from compatibility_matrix.27.xml
rename to compatibility_matrix.2.xml
diff --git a/configstore/1.0/default/Android.mk b/configstore/1.0/default/Android.mk
index 8b24031..539741e 100644
--- a/configstore/1.0/default/Android.mk
+++ b/configstore/1.0/default/Android.mk
@@ -3,7 +3,10 @@
 ################################################################################
 include $(CLEAR_VARS)
 LOCAL_MODULE := android.hardware.configstore@1.0-service
+# seccomp is not required for coverage build.
+ifneq ($(NATIVE_COVERAGE),true)
 LOCAL_REQUIRED_MODULES_arm64 := configstore@1.0.policy
+endif
 LOCAL_PROPRIETARY_MODULE := true
 LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_MODULE_RELATIVE_PATH := hw
diff --git a/light/2.0/default/android.hardware.light@2.0-service.rc b/light/2.0/default/android.hardware.light@2.0-service.rc
index c3284c6..fcc6468 100644
--- a/light/2.0/default/android.hardware.light@2.0-service.rc
+++ b/light/2.0/default/android.hardware.light@2.0-service.rc
@@ -1,4 +1,5 @@
 service light-hal-2-0 /vendor/bin/hw/android.hardware.light@2.0-service
+    interface android.hardware.light@2.0::ILight default
     class hal
     user system
     group system
\ No newline at end of file
diff --git a/radio/1.0/vts/functional/radio_hidl_hal_test.cpp b/radio/1.0/vts/functional/radio_hidl_hal_test.cpp
index 27d19cb..e3e7004 100644
--- a/radio/1.0/vts/functional/radio_hidl_hal_test.cpp
+++ b/radio/1.0/vts/functional/radio_hidl_hal_test.cpp
@@ -43,8 +43,6 @@
     EXPECT_EQ(CardState::ABSENT, cardStatus.cardState);
 }
 
-void RadioHidlTest::TearDown() {}
-
 void RadioHidlTest::notify() {
     std::unique_lock<std::mutex> lock(mtx);
     count++;
diff --git a/radio/1.0/vts/functional/radio_hidl_hal_utils_v1_0.h b/radio/1.0/vts/functional/radio_hidl_hal_utils_v1_0.h
index a5e8701..6b95ab0 100644
--- a/radio/1.0/vts/functional/radio_hidl_hal_utils_v1_0.h
+++ b/radio/1.0/vts/functional/radio_hidl_hal_utils_v1_0.h
@@ -521,8 +521,6 @@
    public:
     virtual void SetUp() override;
 
-    virtual void TearDown() override;
-
     /* Used as a mechanism to inform the test about data/event callback */
     void notify();
 
diff --git a/radio/1.1/vts/functional/radio_hidl_hal_test.cpp b/radio/1.1/vts/functional/radio_hidl_hal_test.cpp
index c4bf1cc..488da2d 100644
--- a/radio/1.1/vts/functional/radio_hidl_hal_test.cpp
+++ b/radio/1.1/vts/functional/radio_hidl_hal_test.cpp
@@ -44,8 +44,6 @@
     EXPECT_EQ(CardState::ABSENT, cardStatus.cardState);
 }
 
-void RadioHidlTest_v1_1::TearDown() {}
-
 void RadioHidlTest_v1_1::notify() {
     std::unique_lock<std::mutex> lock(mtx);
     count++;
diff --git a/radio/1.1/vts/functional/radio_hidl_hal_utils_v1_1.h b/radio/1.1/vts/functional/radio_hidl_hal_utils_v1_1.h
index 523b9ba..a081ab9 100644
--- a/radio/1.1/vts/functional/radio_hidl_hal_utils_v1_1.h
+++ b/radio/1.1/vts/functional/radio_hidl_hal_utils_v1_1.h
@@ -544,20 +544,12 @@
    public:
     virtual void SetUp() override;
 
-    virtual void TearDown() override;
-
     /* Used as a mechanism to inform the test about data/event callback */
     void notify();
 
     /* Test code calls this function to wait for response */
     std::cv_status wait(int sec = TIMEOUT_PERIOD);
 
-    /* Used for checking General Errors */
-    bool CheckGeneralError();
-
-    /* Used for checking OEM Errors */
-    bool CheckOEMError();
-
     sp<::android::hardware::radio::V1_1::IRadio> radio_v1_1;
     sp<RadioResponse_v1_1> radioRsp_v1_1;
     sp<RadioIndication_v1_1> radioInd_v1_1;
diff --git a/tests/baz/1.0/IBaz.hal b/tests/baz/1.0/IBaz.hal
index 8c6a9a4..9a9e754 100644
--- a/tests/baz/1.0/IBaz.hal
+++ b/tests/baz/1.0/IBaz.hal
@@ -68,6 +68,10 @@
         bitfield<BitField> bf;
     };
 
+    struct StructWithInterface {
+        int32_t number;
+        IBase dummy;
+    };
     oneway doThis(float param);
 
     doThatAndReturnSomething(int64_t param) generates (int32_t result);
@@ -93,4 +97,6 @@
     size(uint32_t size) generates (uint32_t size);
 
     getNestedStructs() generates(vec<NestedStruct> data);
+
+    haveSomeStructWithInterface(StructWithInterface swi) generates(StructWithInterface swi);
 };
diff --git a/tests/baz/1.0/default/Baz.cpp b/tests/baz/1.0/default/Baz.cpp
index 5ccd87b..e118122 100644
--- a/tests/baz/1.0/default/Baz.cpp
+++ b/tests/baz/1.0/default/Baz.cpp
@@ -394,6 +394,12 @@
     _hidl_cb(result);
     return Void();
 }
+
+Return<void> Baz::haveSomeStructWithInterface(const StructWithInterface& swi,
+                                              haveSomeStructWithInterface_cb _hidl_cb) {
+    _hidl_cb(swi);
+    return Void();
+}
 // Methods from ::android::hidl::base::V1_0::IBase follow.
 
 IBaz* HIDL_FETCH_IBaz(const char* /* name */) {
diff --git a/tests/baz/1.0/default/Baz.h b/tests/baz/1.0/default/Baz.h
index 4443587..c264f47 100644
--- a/tests/baz/1.0/default/Baz.h
+++ b/tests/baz/1.0/default/Baz.h
@@ -91,6 +91,8 @@
     Return<uint32_t> size(uint32_t size) override;
     Return<void> getNestedStructs(getNestedStructs_cb _hidl_cb) override;
 
+    Return<void> haveSomeStructWithInterface(const StructWithInterface& swi,
+                                             haveSomeStructWithInterface_cb _hidl_cb) override;
     // Methods from ::android::hidl::base::V1_0::IBase follow.
  private:
     sp<IBazCallback> mStoredCallback;
diff --git a/tests/memory/1.0/IMemoryTest.hal b/tests/memory/1.0/IMemoryTest.hal
index b20859c..3c4d4f3 100644
--- a/tests/memory/1.0/IMemoryTest.hal
+++ b/tests/memory/1.0/IMemoryTest.hal
@@ -23,6 +23,6 @@
     haveSomeMemory(memory mem) generates(memory mem);
     fillMemory(memory memory_in, uint8_t filler);
     haveSomeMemoryBlock(MemoryBlock blk) generates(MemoryBlock blk);
-    set(memory mem) generates();
+    set(memory mem);
     get()generates(IMemoryToken token);
 };