diff --git a/base/logging.cpp b/base/logging.cpp
index a868706..f42b996 100644
--- a/base/logging.cpp
+++ b/base/logging.cpp
@@ -340,18 +340,18 @@
 
   int lg_id = LogIdTolog_id_t(id);
 
-  char log_message[1024];
+  char log_message_with_file[4068];  // LOGGER_ENTRY_MAX_PAYLOAD, not available in the NDK.
   if (priority == ANDROID_LOG_FATAL && file != nullptr) {
-    snprintf(log_message, sizeof(log_message), "%s:%u] %s", file, line, message);
-  } else {
-    snprintf(log_message, sizeof(log_message), "%s", message);
+    snprintf(log_message_with_file, sizeof(log_message_with_file), "%s:%u] %s", file, line,
+             message);
+    message = log_message_with_file;
   }
 
   static auto& liblog_functions = GetLibLogFunctions();
   if (liblog_functions) {
     __android_logger_data logger_data = {sizeof(__android_logger_data),     lg_id, priority, tag,
                                          static_cast<const char*>(nullptr), 0};
-    liblog_functions->__android_log_logd_logger(&logger_data, log_message);
+    liblog_functions->__android_log_logd_logger(&logger_data, message);
   } else {
     __android_log_buf_print(lg_id, priority, tag, "%s", message);
   }
diff --git a/bootstat/bootstat.cpp b/bootstat/bootstat.cpp
index d08a59f..6409db0 100644
--- a/bootstat/bootstat.cpp
+++ b/bootstat/bootstat.cpp
@@ -312,6 +312,11 @@
     {"reboot,unknown[0-9]*", 183},
     {"reboot,longkey,.*", 184},
     {"reboot,boringssl-self-check-failed", 185},
+    {"reboot,userspace_failed,shutdown_aborted", 186},
+    {"reboot,userspace_failed,watchdog_triggered", 187},
+    {"reboot,userspace_failed,watchdog_fork", 188},
+    {"reboot,userspace_failed,*", 189},
+    {"reboot,mount_userdata_failed", 190},
 };
 
 // Converts a string value representing the reason the system booted to an
diff --git a/fs_mgr/fs_mgr.cpp b/fs_mgr/fs_mgr.cpp
index 9180a06..b27126b 100644
--- a/fs_mgr/fs_mgr.cpp
+++ b/fs_mgr/fs_mgr.cpp
@@ -887,7 +887,7 @@
 }
 
 static bool should_use_metadata_encryption(const FstabEntry& entry) {
-    return !entry.key_dir.empty() &&
+    return !entry.metadata_key_dir.empty() &&
            (entry.fs_mgr_flags.file_encryption || entry.fs_mgr_flags.force_fde_or_fbe);
 }
 
@@ -1159,7 +1159,7 @@
 static void WrapUserdataIfNeeded(FstabEntry* entry, const std::string& actual_block_device = {}) {
     const auto& block_device =
             actual_block_device.empty() ? entry->blk_device : actual_block_device;
-    if (entry->mount_point != "/data" || !entry->key_dir.empty() ||
+    if (entry->mount_point != "/data" || !entry->metadata_key_dir.empty() ||
         android::base::StartsWith(block_device, "/dev/block/dm-")) {
         return;
     }
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index 9697a4c..ad878f2 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -276,7 +276,7 @@
             entry->vbmeta_partition = arg;
         } else if (StartsWith(flag, "keydirectory=")) {
             // The metadata flag is followed by an = and the directory for the keys.
-            entry->key_dir = arg;
+            entry->metadata_key_dir = arg;
         } else if (StartsWith(flag, "sysfs_path=")) {
             // The path to trigger device gc by idle-maint of vold.
             entry->sysfs_path = arg;
@@ -591,8 +591,8 @@
         userdata.blk_device = "userdata_gsi";
         userdata.fs_mgr_flags.logical = true;
         userdata.fs_mgr_flags.formattable = true;
-        if (!userdata.key_dir.empty()) {
-            userdata.key_dir += "/gsi";
+        if (!userdata.metadata_key_dir.empty()) {
+            userdata.metadata_key_dir += "/gsi";
         }
     } else {
         userdata = BuildDsuUserdataFstabEntry();
diff --git a/fs_mgr/include_fstab/fstab/fstab.h b/fs_mgr/include_fstab/fstab/fstab.h
index 80deaef..a6e6e09 100644
--- a/fs_mgr/include_fstab/fstab/fstab.h
+++ b/fs_mgr/include_fstab/fstab/fstab.h
@@ -37,7 +37,7 @@
     unsigned long flags = 0;
     std::string fs_options;
     std::string key_loc;
-    std::string key_dir;
+    std::string metadata_key_dir;
     off64_t length = 0;
     std::string label;
     int partnum = -1;
diff --git a/fs_mgr/libdm/dm_target.cpp b/fs_mgr/libdm/dm_target.cpp
index 65f6e12..ea54029 100644
--- a/fs_mgr/libdm/dm_target.cpp
+++ b/fs_mgr/libdm/dm_target.cpp
@@ -244,8 +244,20 @@
 }
 
 std::string DmTargetDefaultKey::GetParameterString() const {
-    return cipher_ + " " + key_ + " " + blockdev_ + " " + std::to_string(start_sector_) +
-           (set_dun_ ? " 1 set_dun" : "");
+    std::vector<std::string> argv;
+    argv.emplace_back(cipher_);
+    argv.emplace_back(key_);
+    argv.emplace_back(blockdev_);
+    argv.push_back(std::to_string(start_sector_));
+    std::vector<std::string> extra_argv;
+    if (set_dun_) {
+        extra_argv.emplace_back("set_dun");
+    }
+    if (!extra_argv.empty()) {
+        argv.emplace_back(std::to_string(extra_argv.size()));
+        argv.insert(argv.end(), extra_argv.begin(), extra_argv.end());
+    }
+    return android::base::Join(argv, " ");
 }
 
 }  // namespace dm
diff --git a/fs_mgr/libsnapshot/snapshot_metadata_updater_test.cpp b/fs_mgr/libsnapshot/snapshot_metadata_updater_test.cpp
index 337be4f..5530e59 100644
--- a/fs_mgr/libsnapshot/snapshot_metadata_updater_test.cpp
+++ b/fs_mgr/libsnapshot/snapshot_metadata_updater_test.cpp
@@ -19,6 +19,7 @@
 #include <memory>
 #include <string>
 
+#include <android-base/properties.h>
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <liblp/builder.h>
@@ -42,6 +43,10 @@
 
 class SnapshotMetadataUpdaterTest : public ::testing::TestWithParam<uint32_t> {
   public:
+    SnapshotMetadataUpdaterTest() {
+        is_virtual_ab_ = android::base::GetBoolProperty("ro.virtual_ab.enabled", false);
+    }
+
     void SetUp() override {
         target_slot_ = GetParam();
         target_suffix_ = SlotSuffixForSlotNumber(target_slot_);
@@ -122,6 +127,7 @@
                                   << ".";
     }
 
+    bool is_virtual_ab_;
     std::unique_ptr<MetadataBuilder> builder_;
     uint32_t target_slot_;
     std::string target_suffix_;
diff --git a/fs_mgr/libsnapshot/snapshot_test.cpp b/fs_mgr/libsnapshot/snapshot_test.cpp
index 7de37db..634e0b4 100644
--- a/fs_mgr/libsnapshot/snapshot_test.cpp
+++ b/fs_mgr/libsnapshot/snapshot_test.cpp
@@ -78,7 +78,9 @@
 
 class SnapshotTest : public ::testing::Test {
   public:
-    SnapshotTest() : dm_(DeviceMapper::Instance()) {}
+    SnapshotTest() : dm_(DeviceMapper::Instance()) {
+        is_virtual_ab_ = android::base::GetBoolProperty("ro.virtual_ab.enabled", false);
+    }
 
     // This is exposed for main.
     void Cleanup() {
@@ -88,6 +90,8 @@
 
   protected:
     void SetUp() override {
+        if (!is_virtual_ab_) GTEST_SKIP() << "Test for Virtual A/B devices only";
+
         SnapshotTestPropertyFetcher::SetUp();
         InitializeState();
         CleanupTestArtifacts();
@@ -97,6 +101,8 @@
     }
 
     void TearDown() override {
+        if (!is_virtual_ab_) return;
+
         lock_ = nullptr;
 
         CleanupTestArtifacts();
@@ -329,6 +335,7 @@
         return AssertionSuccess();
     }
 
+    bool is_virtual_ab_;
     DeviceMapper& dm_;
     std::unique_ptr<SnapshotManager::LockedFile> lock_;
     android::fiemap::IImageManager* image_manager_ = nullptr;
@@ -754,6 +761,8 @@
 class SnapshotUpdateTest : public SnapshotTest {
   public:
     void SetUp() override {
+        if (!is_virtual_ab_) GTEST_SKIP() << "Test for Virtual A/B devices only";
+
         SnapshotTest::SetUp();
         Cleanup();
 
@@ -813,6 +822,8 @@
         }
     }
     void TearDown() override {
+        if (!is_virtual_ab_) return;
+
         Cleanup();
         SnapshotTest::TearDown();
     }
@@ -1625,6 +1636,8 @@
 };
 
 TEST_P(FlashAfterUpdateTest, FlashSlotAfterUpdate) {
+    if (!is_virtual_ab_) GTEST_SKIP() << "Test for Virtual A/B devices only";
+
     // OTA client blindly unmaps all partitions that are possibly mapped.
     for (const auto& name : {"sys_b", "vnd_b", "prd_b"}) {
         ASSERT_TRUE(sm->UnmapUpdateSnapshot(name));
@@ -1718,13 +1731,17 @@
 // Test behavior of ImageManager::Create on low space scenario. These tests assumes image manager
 // uses /data as backup device.
 class ImageManagerTest : public SnapshotTest, public WithParamInterface<uint64_t> {
-  public:
+  protected:
     void SetUp() override {
+        if (!is_virtual_ab_) GTEST_SKIP() << "Test for Virtual A/B devices only";
+
         SnapshotTest::SetUp();
         userdata_ = std::make_unique<LowSpaceUserdata>();
         ASSERT_TRUE(userdata_->Init(GetParam()));
     }
     void TearDown() override {
+        if (!is_virtual_ab_) return;
+
         EXPECT_TRUE(!image_manager_->BackingImageExists(kImageName) ||
                     image_manager_->DeleteBackingImage(kImageName));
     }
diff --git a/fs_mgr/tests/fs_mgr_test.cpp b/fs_mgr/tests/fs_mgr_test.cpp
index c5adea6..709be59 100644
--- a/fs_mgr/tests/fs_mgr_test.cpp
+++ b/fs_mgr/tests/fs_mgr_test.cpp
@@ -413,7 +413,7 @@
         EXPECT_TRUE(CompareFlags(flags, entry->fs_mgr_flags));
     }
     EXPECT_EQ("", entry->key_loc);
-    EXPECT_EQ("", entry->key_dir);
+    EXPECT_EQ("", entry->metadata_key_dir);
     EXPECT_EQ(0, entry->length);
     EXPECT_EQ("", entry->label);
     EXPECT_EQ(-1, entry->partnum);
@@ -440,7 +440,7 @@
         EXPECT_TRUE(CompareFlags(flags, entry->fs_mgr_flags));
     }
     EXPECT_EQ("", entry->key_loc);
-    EXPECT_EQ("", entry->key_dir);
+    EXPECT_EQ("", entry->metadata_key_dir);
     EXPECT_EQ(0, entry->length);
     EXPECT_EQ("", entry->label);
     EXPECT_EQ(-1, entry->partnum);
@@ -892,7 +892,7 @@
     FstabEntry::FsMgrFlags flags = {};
     EXPECT_TRUE(CompareFlags(flags, entry->fs_mgr_flags));
 
-    EXPECT_EQ("/dir/key", entry->key_dir);
+    EXPECT_EQ("/dir/key", entry->metadata_key_dir);
 }
 
 TEST(fs_mgr, ReadFstabFromFile_FsMgrOptions_SysfsPath) {
diff --git a/init/builtins.cpp b/init/builtins.cpp
index c877590..742e089 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -1123,6 +1123,7 @@
     auto reboot_reason = vdc_arg + "_failed";
     if (android::sysprop::InitProperties::userspace_reboot_in_progress().value_or(false)) {
         should_reboot_into_recovery = false;
+        reboot_reason = "userspace_failed," + vdc_arg;
     }
 
     auto reboot = [reboot_reason, should_reboot_into_recovery](const std::string& message) {
@@ -1159,7 +1160,7 @@
     }
     // TODO(b/135984674): check that fstab contains /data.
     if (auto rc = fs_mgr_remount_userdata_into_checkpointing(&fstab); rc < 0) {
-        trigger_shutdown("reboot,mount-userdata-failed");
+        trigger_shutdown("reboot,mount_userdata_failed");
     }
     if (auto result = queue_fs_event(initial_mount_fstab_return_code, true); !result) {
         return Error() << "queue_fs_event() failed: " << result.error();
diff --git a/init/reboot.cpp b/init/reboot.cpp
index 8c90714..8b239fe 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -737,7 +737,7 @@
     auto guard = android::base::make_scope_guard([] {
         // Leave shutdown so that we can handle a full reboot.
         LeaveShutdown();
-        trigger_shutdown("reboot,abort-userspace-reboot");
+        trigger_shutdown("reboot,userspace_failed,shutdown_aborted");
     });
     // Triggering userspace-reboot-requested will result in a bunch of setprop
     // actions. We should make sure, that all of them are propagated before
@@ -831,7 +831,7 @@
     if (!WaitForProperty("sys.boot_completed", "1", timeout)) {
         LOG(ERROR) << "Failed to boot in " << timeout.count() << "ms. Switching to full reboot";
         // In this case device is in a boot loop. Only way to recover is to do dirty reboot.
-        RebootSystem(ANDROID_RB_RESTART2, "userspace-reboot-watchdog-triggered");
+        RebootSystem(ANDROID_RB_RESTART2, "userspace_failed,watchdog_triggered");
     }
     LOG(INFO) << "Device booted, stopping userspace reboot watchdog";
 }
@@ -847,7 +847,7 @@
     if (pid < 0) {
         PLOG(ERROR) << "Failed to fork process for userspace reboot watchdog. Switching to full "
                     << "reboot";
-        trigger_shutdown("reboot,userspace-reboot-failed-to-fork");
+        trigger_shutdown("reboot,userspace_failed,watchdog_fork");
         return;
     }
     if (pid == 0) {
diff --git a/liblog/include/log/log_main.h b/liblog/include/log/log_main.h
index 64791c2..1bd1c8a 100644
--- a/liblog/include/log/log_main.h
+++ b/liblog/include/log/log_main.h
@@ -56,7 +56,7 @@
 /*
  * Use __VA_ARGS__ if running a static analyzer,
  * to avoid warnings of unused variables in __VA_ARGS__.
- * Use contexpr function in C++ mode, so these macros can be used
+ * Use constexpr function in C++ mode, so these macros can be used
  * in other constexpr functions without warning.
  */
 #ifdef __clang_analyzer__
@@ -131,10 +131,10 @@
  * is -inverted- from the normal assert() semantics.
  */
 #ifndef LOG_ALWAYS_FATAL_IF
-#define LOG_ALWAYS_FATAL_IF(cond, ...)                              \
-  ((__predict_false(cond))                                          \
-       ? ((void)android_printAssert(#cond, LOG_TAG, ##__VA_ARGS__)) \
-       : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define LOG_ALWAYS_FATAL_IF(cond, ...)                                                    \
+  ((__predict_false(cond)) ? (__FAKE_USE_VA_ARGS(__VA_ARGS__),                            \
+                              ((void)android_printAssert(#cond, LOG_TAG, ##__VA_ARGS__))) \
+                           : ((void)0))
 #endif
 
 #ifndef LOG_ALWAYS_FATAL
@@ -213,9 +213,10 @@
 #if LOG_NDEBUG
 #define ALOGV_IF(cond, ...) __FAKE_USE_VA_ARGS(__VA_ARGS__)
 #else
-#define ALOGV_IF(cond, ...)                                                  \
-  ((__predict_false(cond)) ? ((void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
-                           : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define ALOGV_IF(cond, ...)                                                               \
+  ((__predict_false(cond))                                                                \
+       ? (__FAKE_USE_VA_ARGS(__VA_ARGS__), (void)ALOG(LOG_VERBOSE, LOG_TAG, __VA_ARGS__)) \
+       : ((void)0))
 #endif
 #endif
 
@@ -227,9 +228,10 @@
 #endif
 
 #ifndef ALOGD_IF
-#define ALOGD_IF(cond, ...)                                                \
-  ((__predict_false(cond)) ? ((void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
-                           : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define ALOGD_IF(cond, ...)                                                             \
+  ((__predict_false(cond))                                                              \
+       ? (__FAKE_USE_VA_ARGS(__VA_ARGS__), (void)ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)) \
+       : ((void)0))
 #endif
 
 /*
@@ -240,9 +242,10 @@
 #endif
 
 #ifndef ALOGI_IF
-#define ALOGI_IF(cond, ...)                                               \
-  ((__predict_false(cond)) ? ((void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
-                           : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define ALOGI_IF(cond, ...)                                                            \
+  ((__predict_false(cond))                                                             \
+       ? (__FAKE_USE_VA_ARGS(__VA_ARGS__), (void)ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)) \
+       : ((void)0))
 #endif
 
 /*
@@ -253,9 +256,10 @@
 #endif
 
 #ifndef ALOGW_IF
-#define ALOGW_IF(cond, ...)                                               \
-  ((__predict_false(cond)) ? ((void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
-                           : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define ALOGW_IF(cond, ...)                                                            \
+  ((__predict_false(cond))                                                             \
+       ? (__FAKE_USE_VA_ARGS(__VA_ARGS__), (void)ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)) \
+       : ((void)0))
 #endif
 
 /*
@@ -266,9 +270,10 @@
 #endif
 
 #ifndef ALOGE_IF
-#define ALOGE_IF(cond, ...)                                                \
-  ((__predict_false(cond)) ? ((void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
-                           : __FAKE_USE_VA_ARGS(__VA_ARGS__))
+#define ALOGE_IF(cond, ...)                                                             \
+  ((__predict_false(cond))                                                              \
+       ? (__FAKE_USE_VA_ARGS(__VA_ARGS__), (void)ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)) \
+       : ((void)0))
 #endif
 
 /* --------------------------------------------------------------------- */
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 5f4b8c3..20fb071 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -32,6 +32,10 @@
     # cgroup for system_server and surfaceflinger
     mkdir /dev/memcg/system 0550 system system
 
+    # symlink the Android specific /dev/tun to Linux expected /dev/net/tun
+    mkdir /dev/net 0755 root root
+    symlink ../tun /dev/net/tun
+
     # set RLIMIT_NICE to allow priorities from 19 to -20
     setrlimit nice 40 40
 
@@ -69,6 +73,19 @@
     mkdir /dev/boringssl 0755 root root
     mkdir /dev/boringssl/selftest 0755 root root
 
+    # Mount binderfs
+    mkdir /dev/binderfs
+    mount binder binder /dev/binderfs stats=global
+    chmod 0755 /dev/binderfs
+
+    symlink /dev/binderfs/binder /dev/binder
+    symlink /dev/binderfs/hwbinder /dev/hwbinder
+    symlink /dev/binderfs/vndbinder /dev/vndbinder
+
+    chmod 0666 /dev/binderfs/hwbinder
+    chmod 0666 /dev/binderfs/binder
+    chmod 0666 /dev/binderfs/vndbinder
+
 # Run boringssl self test for each ABI so that later processes can skip it. http://b/139348610
 on early-init && property:ro.product.cpu.abilist32=*
     exec_start boringssl_self_test32