diff --git a/fastboot/README.md b/fastboot/README.md
index 63db5c3..55583eb 100644
--- a/fastboot/README.md
+++ b/fastboot/README.md
@@ -165,6 +165,28 @@
                        using the new bootloader.
 
 
+## Flashing Logic
+
+Fastboot binary will follow directions listed out fastboot-info.txt
+build artifact for fastboot flashall && fastboot update comamnds.
+This build artifact will live inside of ANDROID_PRODUCT_OUT &&
+target_files_package && updatepackage.
+
+
+The currently defined commands are:
+
+    flash %s           Flash a given partition. Optional arguments include
+                       --slot-other, {filename_path}, --apply-vbmeta
+
+    reboot %s          Reboot to either bootloader or fastbootd
+
+    update-super       Updates the super partition
+
+    if-wipe            Conditionally run some other functionality if
+                       wipe is specified
+
+    erase %s           Erase a given partition (can only be used in conjunction)
+                       with if-wipe -> eg. if-wipe erase cache
 
 ## Client Variables
 
diff --git a/fs_mgr/libfs_avb/avb_ops.cpp b/fs_mgr/libfs_avb/avb_ops.cpp
index a119bfc..cc19776 100644
--- a/fs_mgr/libfs_avb/avb_ops.cpp
+++ b/fs_mgr/libfs_avb/avb_ops.cpp
@@ -108,8 +108,8 @@
 // Converts a partition name (with ab_suffix) to the corresponding mount point.
 // e.g., "system_a" => "/system",
 // e.g., "vendor_a" => "/vendor",
-static std::string DeriveMountPoint(const std::string& partition_name) {
-    const std::string ab_suffix = fs_mgr_get_slot_suffix();
+static std::string DeriveMountPoint(const std::string& partition_name,
+                                    const std::string& ab_suffix) {
     std::string mount_point(partition_name);
     auto found = partition_name.rfind(ab_suffix);
     if (found != std::string::npos) {
@@ -119,7 +119,7 @@
     return "/" + mount_point;
 }
 
-FsManagerAvbOps::FsManagerAvbOps() {
+FsManagerAvbOps::FsManagerAvbOps(const std::string& slot_suffix) {
     // We only need to provide the implementation of read_from_partition()
     // operation since that's all what is being used by the avb_slot_verify().
     // Other I/O operations are only required in bootloader but not in
@@ -135,6 +135,11 @@
 
     // Sets user_data for GetInstanceFromAvbOps() to convert it back to FsManagerAvbOps.
     avb_ops_.user_data = this;
+
+    slot_suffix_ = slot_suffix;
+    if (slot_suffix_.empty()) {
+        slot_suffix_ = fs_mgr_get_slot_suffix();
+    }
 }
 
 // Given a partition name (with ab_suffix), e.g., system_a, returns the corresponding
@@ -149,7 +154,7 @@
         return "";
     }
 
-    const auto mount_point = DeriveMountPoint(partition_name);
+    const auto mount_point = DeriveMountPoint(partition_name, slot_suffix_);
     if (mount_point.empty()) return "";
 
     auto fstab_entry = GetEntryForMountPoint(&fstab_, mount_point);
diff --git a/fs_mgr/libfs_avb/avb_ops.h b/fs_mgr/libfs_avb/avb_ops.h
index 12686a6..709091e 100644
--- a/fs_mgr/libfs_avb/avb_ops.h
+++ b/fs_mgr/libfs_avb/avb_ops.h
@@ -48,7 +48,7 @@
 //
 class FsManagerAvbOps {
   public:
-    FsManagerAvbOps();
+    explicit FsManagerAvbOps(const std::string& slot_suffix = {});
 
     static FsManagerAvbOps* GetInstanceFromAvbOps(AvbOps* ops) {
         return reinterpret_cast<FsManagerAvbOps*>(ops->user_data);
@@ -66,6 +66,7 @@
     std::string GetPartitionPath(const char* partition_name);
     AvbOps avb_ops_;
     Fstab fstab_;
+    std::string slot_suffix_;
 };
 
 }  // namespace fs_mgr
diff --git a/fs_mgr/libfs_avb/fs_avb.cpp b/fs_mgr/libfs_avb/fs_avb.cpp
index a288876..fb22423 100644
--- a/fs_mgr/libfs_avb/fs_avb.cpp
+++ b/fs_mgr/libfs_avb/fs_avb.cpp
@@ -182,6 +182,11 @@
 
 // class AvbHandle
 // ---------------
+AvbHandle::AvbHandle() : status_(AvbHandleStatus::kUninitialized) {
+    slot_suffix_ = fs_mgr_get_slot_suffix();
+    other_slot_suffix_ = fs_mgr_get_other_slot_suffix();
+}
+
 AvbUniquePtr AvbHandle::LoadAndVerifyVbmeta(
         const std::string& partition_name, const std::string& ab_suffix,
         const std::string& ab_other_suffix, const std::string& expected_public_key_path,
@@ -194,6 +199,9 @@
         return nullptr;
     }
 
+    avb_handle->slot_suffix_ = ab_suffix;
+    avb_handle->other_slot_suffix_ = ab_other_suffix;
+
     std::string expected_key_blob;
     if (!expected_public_key_path.empty()) {
         if (access(expected_public_key_path.c_str(), F_OK) != 0) {
@@ -373,9 +381,14 @@
     return avb_handle;
 }
 
-AvbUniquePtr AvbHandle::LoadAndVerifyVbmeta() {
+AvbUniquePtr AvbHandle::LoadAndVerifyVbmeta(const std::string& slot_suffix) {
     // Loads inline vbmeta images, starting from /vbmeta.
-    return LoadAndVerifyVbmeta("vbmeta", fs_mgr_get_slot_suffix(), fs_mgr_get_other_slot_suffix(),
+    auto suffix = slot_suffix;
+    if (suffix.empty()) {
+        suffix = fs_mgr_get_slot_suffix();
+    }
+    auto other_suffix = android::fs_mgr::OtherSlotSuffix(suffix);
+    return LoadAndVerifyVbmeta("vbmeta", suffix, other_suffix,
                                {} /* expected_public_key, already checked by bootloader */,
                                HashAlgorithm::kSHA256,
                                IsAvbPermissive(), /* allow_verification_error */
@@ -399,7 +412,7 @@
                                        ? AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR
                                        : AVB_SLOT_VERIFY_FLAGS_NONE;
     AvbSlotVerifyResult verify_result =
-            avb_ops.AvbSlotVerify(fs_mgr_get_slot_suffix(), flags, &avb_handle->vbmeta_images_);
+            avb_ops.AvbSlotVerify(avb_handle->slot_suffix_, flags, &avb_handle->vbmeta_images_);
 
     // Only allow the following verify results:
     //   - AVB_SLOT_VERIFY_RESULT_OK.
@@ -492,7 +505,7 @@
     }
 
     if (!LoadAvbHashtreeToEnableVerity(fstab_entry, wait_for_verity_dev, vbmeta_images_,
-                                       fs_mgr_get_slot_suffix(), fs_mgr_get_other_slot_suffix())) {
+                                       slot_suffix_, other_slot_suffix_)) {
         return AvbHashtreeResult::kFail;
     }
 
@@ -526,8 +539,8 @@
     if (vbmeta_images_.size() < 1) {
         return "";
     }
-    std::string avb_partition_name = DeriveAvbPartitionName(fstab_entry, fs_mgr_get_slot_suffix(),
-                                                            fs_mgr_get_other_slot_suffix());
+    std::string avb_partition_name =
+            DeriveAvbPartitionName(fstab_entry, slot_suffix_, other_slot_suffix_);
     auto avb_prop_name = "com.android.build." + avb_partition_name + ".security_patch";
     return GetAvbPropertyDescriptor(avb_prop_name, vbmeta_images_);
 }
diff --git a/fs_mgr/libfs_avb/include/fs_avb/fs_avb.h b/fs_mgr/libfs_avb/include/fs_avb/fs_avb.h
index 4702e68..924ab24 100644
--- a/fs_mgr/libfs_avb/include/fs_avb/fs_avb.h
+++ b/fs_mgr/libfs_avb/include/fs_avb/fs_avb.h
@@ -83,8 +83,8 @@
     //     is verified and can be trusted.
     //
     // TODO(bowgotsai): remove Open() and switch to LoadAndVerifyVbmeta().
-    static AvbUniquePtr Open();                 // loads inline vbmeta, via libavb.
-    static AvbUniquePtr LoadAndVerifyVbmeta();  // loads inline vbmeta.
+    static AvbUniquePtr Open();  // loads inline vbmeta, via libavb.
+    static AvbUniquePtr LoadAndVerifyVbmeta(const std::string& slot_suffix = {});
 
     // The caller can specify optional preload_avb_key_blobs for public key matching.
     // This is mostly for init to preload AVB keys before chroot into /system.
@@ -137,12 +137,14 @@
     AvbHandle& operator=(AvbHandle&&) noexcept = delete;  // no move assignment
 
   private:
-    AvbHandle() : status_(AvbHandleStatus::kUninitialized) {}
+    AvbHandle();
 
     std::vector<VBMetaData> vbmeta_images_;
     VBMetaInfo vbmeta_info_;  // A summary info for vbmeta_images_.
     AvbHandleStatus status_;
     std::string avb_version_;
+    std::string slot_suffix_;
+    std::string other_slot_suffix_;
 };
 
 }  // namespace fs_mgr
diff --git a/fs_mgr/libfstab/include/fstab/fstab.h b/fs_mgr/libfstab/include/fstab/fstab.h
index 150a47d..09471f0 100644
--- a/fs_mgr/libfstab/include/fstab/fstab.h
+++ b/fs_mgr/libfstab/include/fstab/fstab.h
@@ -145,5 +145,8 @@
 // Otherwise returns false and |*out| is not modified.
 bool GetKernelCmdline(const std::string& key, std::string* out);
 
+// Return the "other" slot for the given slot suffix.
+std::string OtherSlotSuffix(const std::string& suffix);
+
 }  // namespace fs_mgr
 }  // namespace android
diff --git a/fs_mgr/libfstab/slotselect.cpp b/fs_mgr/libfstab/slotselect.cpp
index 97b2ba1..db3f8da 100644
--- a/fs_mgr/libfstab/slotselect.cpp
+++ b/fs_mgr/libfstab/slotselect.cpp
@@ -74,3 +74,13 @@
     }
     return true;
 }
+
+namespace android {
+namespace fs_mgr {
+
+std::string OtherSlotSuffix(const std::string& suffix) {
+    return other_suffix(suffix);
+}
+
+}  // namespace fs_mgr
+}  // namespace android
diff --git a/fs_mgr/libsnapshot/OWNERS b/fs_mgr/libsnapshot/OWNERS
index 1ee4175..c8b1003 100644
--- a/fs_mgr/libsnapshot/OWNERS
+++ b/fs_mgr/libsnapshot/OWNERS
@@ -1,4 +1,4 @@
-# Bug component: 30545
+# Bug component: 1014951
 balsini@google.com
 dvander@google.com
 elsk@google.com
diff --git a/fs_mgr/libsnapshot/include/libsnapshot/cow_compress.h b/fs_mgr/libsnapshot/include/libsnapshot/cow_compress.h
index 97974c4..cf65615 100644
--- a/fs_mgr/libsnapshot/include/libsnapshot/cow_compress.h
+++ b/fs_mgr/libsnapshot/include/libsnapshot/cow_compress.h
@@ -17,7 +17,6 @@
 #pragma once
 
 #include <memory>
-#include <string_view>
 #include "libsnapshot/cow_format.h"
 
 namespace android {
diff --git a/fs_mgr/libsnapshot/libsnapshot_cow/writer_v2.cpp b/fs_mgr/libsnapshot/libsnapshot_cow/writer_v2.cpp
index d3c3d59..ee445a2 100644
--- a/fs_mgr/libsnapshot/libsnapshot_cow/writer_v2.cpp
+++ b/fs_mgr/libsnapshot/libsnapshot_cow/writer_v2.cpp
@@ -174,7 +174,7 @@
         current_data_pos_ = next_data_pos_;
     }
 
-    LOG_INFO << "Batch writes: " << batch_write_ ? "enabled" : "disabled";
+    LOG_INFO << "Batch writes: " << (batch_write_ ? "enabled" : "disabled");
 }
 
 void CowWriterV2::InitWorkers() {
diff --git a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_transitions.cpp b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_transitions.cpp
index 52e4f89..f3e0019 100644
--- a/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_transitions.cpp
+++ b/fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_transitions.cpp
@@ -189,35 +189,32 @@
     cv.notify_all();
 }
 
+static inline bool IsMergeBeginError(MERGE_IO_TRANSITION io_state) {
+    return io_state == MERGE_IO_TRANSITION::READ_AHEAD_FAILURE ||
+           io_state == MERGE_IO_TRANSITION::IO_TERMINATED;
+}
+
 // Invoked by Merge thread - Waits on RA thread to resume merging. Will
 // be waken up RA thread.
 bool SnapshotHandler::WaitForMergeBegin() {
-    {
-        std::unique_lock<std::mutex> lock(lock_);
-        while (!MergeInitiated()) {
-            cv.wait(lock);
+    std::unique_lock<std::mutex> lock(lock_);
 
-            if (io_state_ == MERGE_IO_TRANSITION::READ_AHEAD_FAILURE ||
-                io_state_ == MERGE_IO_TRANSITION::IO_TERMINATED) {
-                SNAP_LOG(ERROR) << "WaitForMergeBegin failed with state: " << io_state_;
-                return false;
-            }
-        }
+    cv.wait(lock, [this]() -> bool { return MergeInitiated() || IsMergeBeginError(io_state_); });
 
-        while (!(io_state_ == MERGE_IO_TRANSITION::MERGE_BEGIN ||
-                 io_state_ == MERGE_IO_TRANSITION::READ_AHEAD_FAILURE ||
-                 io_state_ == MERGE_IO_TRANSITION::IO_TERMINATED)) {
-            cv.wait(lock);
-        }
-
-        if (io_state_ == MERGE_IO_TRANSITION::READ_AHEAD_FAILURE ||
-            io_state_ == MERGE_IO_TRANSITION::IO_TERMINATED) {
-            SNAP_LOG(ERROR) << "WaitForMergeBegin failed with state: " << io_state_;
-            return false;
-        }
-
-        return true;
+    if (IsMergeBeginError(io_state_)) {
+        SNAP_LOG(ERROR) << "WaitForMergeBegin failed with state: " << io_state_;
+        return false;
     }
+
+    cv.wait(lock, [this]() -> bool {
+        return io_state_ == MERGE_IO_TRANSITION::MERGE_BEGIN || IsMergeBeginError(io_state_);
+    });
+
+    if (IsMergeBeginError(io_state_)) {
+        SNAP_LOG(ERROR) << "WaitForMergeBegin failed with state: " << io_state_;
+        return false;
+    }
+    return true;
 }
 
 // Invoked by RA thread - Flushes the RA block to scratch space if necessary
diff --git a/fs_mgr/libsnapshot/tools/Android.bp b/fs_mgr/libsnapshot/tools/Android.bp
new file mode 100644
index 0000000..cfa0cef
--- /dev/null
+++ b/fs_mgr/libsnapshot/tools/Android.bp
@@ -0,0 +1,22 @@
+
+cc_binary {
+    name: "cow_benchmark",
+    host_supported: true,
+    defaults: [
+        "fs_mgr_defaults",
+        "libsnapshot_cow_defaults",
+    ],
+
+    srcs: ["cow_benchmark.cpp"],
+
+    static_libs: [
+        "libsnapshot_cow",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "liblog",
+    ],
+
+    cflags: ["-Werror"],
+}
diff --git a/fs_mgr/libsnapshot/tools/cow_benchmark.cpp b/fs_mgr/libsnapshot/tools/cow_benchmark.cpp
new file mode 100644
index 0000000..da2b879
--- /dev/null
+++ b/fs_mgr/libsnapshot/tools/cow_benchmark.cpp
@@ -0,0 +1,188 @@
+
+#include <memory>
+
+#include <array>
+#include <iostream>
+#include <random>
+
+#include <libsnapshot/cow_compress.h>
+#include <libsnapshot/cow_format.h>
+
+static const uint32_t BLOCK_SZ = 4096;
+static const uint32_t SEED_NUMBER = 10;
+
+namespace android {
+namespace snapshot {
+
+static std::string CompressionToString(CowCompression& compression) {
+    std::string output;
+    switch (compression.algorithm) {
+        case kCowCompressBrotli:
+            output.append("brotli");
+            break;
+        case kCowCompressGz:
+            output.append("gz");
+            break;
+        case kCowCompressLz4:
+            output.append("lz4");
+            break;
+        case kCowCompressZstd:
+            output.append("zstd");
+            break;
+        case kCowCompressNone:
+            return "No Compression";
+    }
+    output.append(" " + std::to_string(compression.compression_level));
+    return output;
+}
+
+void OneShotCompressionTest() {
+    std::cout << "\n-------One Shot Compressor Perf Analysis-------\n";
+
+    std::vector<CowCompression> compression_list = {
+            {kCowCompressLz4, 0},     {kCowCompressBrotli, 1}, {kCowCompressBrotli, 3},
+            {kCowCompressBrotli, 11}, {kCowCompressZstd, 3},   {kCowCompressZstd, 6},
+            {kCowCompressZstd, 9},    {kCowCompressZstd, 22},  {kCowCompressGz, 1},
+            {kCowCompressGz, 3},      {kCowCompressGz, 6},     {kCowCompressGz, 9}};
+    std::vector<std::unique_ptr<ICompressor>> compressors;
+    for (auto i : compression_list) {
+        compressors.emplace_back(ICompressor::Create(i, BLOCK_SZ));
+    }
+
+    // Allocate a buffer of size 8 blocks.
+    std::array<char, 32768> buffer;
+
+    // Generate a random 4k buffer of characters
+    std::default_random_engine gen(SEED_NUMBER);
+    std::uniform_int_distribution<int> distribution(0, 10);
+    for (int i = 0; i < buffer.size(); i++) {
+        buffer[i] = static_cast<char>(distribution(gen));
+    }
+
+    std::vector<std::pair<double, std::string>> latencies;
+    std::vector<std::pair<double, std::string>> ratios;
+
+    for (size_t i = 0; i < compressors.size(); i++) {
+        const auto start = std::chrono::steady_clock::now();
+        std::basic_string<uint8_t> compressed_data =
+                compressors[i]->Compress(buffer.data(), buffer.size());
+        const auto end = std::chrono::steady_clock::now();
+        const auto latency =
+                std::chrono::duration_cast<std::chrono::nanoseconds>(end - start) / 1000.0;
+        const double compression_ratio =
+                static_cast<uint16_t>(compressed_data.size()) * 1.00 / buffer.size();
+
+        std::cout << "Metrics for " << CompressionToString(compression_list[i]) << ": latency -> "
+                  << latency.count() << "ms "
+                  << " compression ratio ->" << compression_ratio << " \n";
+
+        latencies.emplace_back(
+                std::make_pair(latency.count(), CompressionToString(compression_list[i])));
+        ratios.emplace_back(
+                std::make_pair(compression_ratio, CompressionToString(compression_list[i])));
+    }
+
+    int best_speed = 0;
+    int best_ratio = 0;
+
+    for (size_t i = 1; i < latencies.size(); i++) {
+        if (latencies[i].first < latencies[best_speed].first) {
+            best_speed = i;
+        }
+        if (ratios[i].first < ratios[best_ratio].first) {
+            best_ratio = i;
+        }
+    }
+
+    std::cout << "BEST SPEED: " << latencies[best_speed].first << "ms "
+              << latencies[best_speed].second << "\n";
+    std::cout << "BEST RATIO: " << ratios[best_ratio].first << " " << ratios[best_ratio].second
+              << "\n";
+}
+
+void IncrementalCompressionTest() {
+    std::cout << "\n-------Incremental Compressor Perf Analysis-------\n";
+
+    std::vector<CowCompression> compression_list = {
+            {kCowCompressLz4, 0},     {kCowCompressBrotli, 1}, {kCowCompressBrotli, 3},
+            {kCowCompressBrotli, 11}, {kCowCompressZstd, 3},   {kCowCompressZstd, 6},
+            {kCowCompressZstd, 9},    {kCowCompressZstd, 22},  {kCowCompressGz, 1},
+            {kCowCompressGz, 3},      {kCowCompressGz, 6},     {kCowCompressGz, 9}};
+    std::vector<std::unique_ptr<ICompressor>> compressors;
+    for (auto i : compression_list) {
+        compressors.emplace_back(ICompressor::Create(i, BLOCK_SZ));
+    }
+
+    // Allocate a buffer of size 8 blocks.
+    std::array<char, 32768> buffer;
+
+    // Generate a random 4k buffer of characters
+    std::default_random_engine gen(SEED_NUMBER);
+    std::uniform_int_distribution<int> distribution(0, 10);
+    for (int i = 0; i < buffer.size(); i++) {
+        buffer[i] = static_cast<char>(distribution(gen));
+    }
+
+    std::vector<std::pair<double, std::string>> latencies;
+    std::vector<std::pair<double, std::string>> ratios;
+
+    for (size_t i = 0; i < compressors.size(); i++) {
+        std::vector<std::basic_string<uint8_t>> compressed_data_vec;
+        int num_blocks = buffer.size() / BLOCK_SZ;
+        const uint8_t* iter = reinterpret_cast<const uint8_t*>(buffer.data());
+
+        const auto start = std::chrono::steady_clock::now();
+        while (num_blocks > 0) {
+            std::basic_string<uint8_t> compressed_data = compressors[i]->Compress(iter, BLOCK_SZ);
+            compressed_data_vec.emplace_back(compressed_data);
+            num_blocks--;
+            iter += BLOCK_SZ;
+        }
+
+        const auto end = std::chrono::steady_clock::now();
+        const auto latency =
+                std::chrono::duration_cast<std::chrono::nanoseconds>(end - start) / 1000.0;
+
+        size_t size = 0;
+        for (auto& i : compressed_data_vec) {
+            size += i.size();
+        }
+        const double compression_ratio = size * 1.00 / buffer.size();
+
+        std::cout << "Metrics for " << CompressionToString(compression_list[i]) << ": latency -> "
+                  << latency.count() << "ms "
+                  << " compression ratio ->" << compression_ratio << " \n";
+
+        latencies.emplace_back(
+                std::make_pair(latency.count(), CompressionToString(compression_list[i])));
+        ratios.emplace_back(
+                std::make_pair(compression_ratio, CompressionToString(compression_list[i])));
+    }
+
+    int best_speed = 0;
+    int best_ratio = 0;
+
+    for (size_t i = 1; i < latencies.size(); i++) {
+        if (latencies[i].first < latencies[best_speed].first) {
+            best_speed = i;
+        }
+        if (ratios[i].first < ratios[best_ratio].first) {
+            best_ratio = i;
+        }
+    }
+
+    std::cout << "BEST SPEED: " << latencies[best_speed].first << "ms "
+              << latencies[best_speed].second << "\n";
+    std::cout << "BEST RATIO: " << ratios[best_ratio].first << " " << ratios[best_ratio].second
+              << "\n";
+}
+
+}  // namespace snapshot
+}  // namespace android
+
+int main() {
+    android::snapshot::OneShotCompressionTest();
+    android::snapshot::IncrementalCompressionTest();
+
+    return 0;
+}
\ No newline at end of file
diff --git a/init/builtins.cpp b/init/builtins.cpp
index a5b762c..a70e866 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -746,6 +746,7 @@
 static Result<void> do_start(const BuiltinArguments& args) {
     Service* svc = ServiceList::GetInstance().FindService(args[1]);
     if (!svc) return Error() << "service " << args[1] << " not found";
+    errno = 0;
     if (auto result = svc->Start(); !result.ok()) {
         return ErrorIgnoreEnoent() << "Could not start service: " << result.error();
     }
@@ -1304,8 +1305,7 @@
     }
 
     if (!bootstrap) {
-        // Now start delayed services
-        ServiceList::GetInstance().MarkServicesUpdate();
+        ServiceList::GetInstance().StartDelayedServices();
     }
     return {};
 }
diff --git a/init/first_stage_init.cpp b/init/first_stage_init.cpp
index 88300cb..3239eb7 100644
--- a/init/first_stage_init.cpp
+++ b/init/first_stage_init.cpp
@@ -35,6 +35,7 @@
 #include <android-base/chrono_utils.h>
 #include <android-base/file.h>
 #include <android-base/logging.h>
+#include <android-base/stringprintf.h>
 #include <modprobe/modprobe.h>
 #include <private/android_filesystem_config.h>
 
@@ -153,6 +154,15 @@
         Copy(snapuserd, dst);
     }
 }
+
+std::string GetPageSizeSuffix() {
+    static const size_t page_size = sysconf(_SC_PAGE_SIZE);
+    if (page_size <= 4096) {
+        return "";
+    }
+    return android::base::StringPrintf("_%zuk", page_size / 1024);
+}
+
 }  // namespace
 
 std::string GetModuleLoadList(BootMode boot_mode, const std::string& dir_path) {
@@ -201,10 +211,18 @@
     }
     dirent* entry = nullptr;
     std::vector<std::string> module_dirs;
+    const std::string release_specific_module_dir = uts.release + GetPageSizeSuffix();
     while ((entry = readdir(base_dir.get()))) {
         if (entry->d_type != DT_DIR) {
             continue;
         }
+        if (entry->d_name == release_specific_module_dir) {
+            LOG(INFO) << "Release specific kernel module dir " << release_specific_module_dir
+                      << " found, loading modules from here with no fallbacks.";
+            module_dirs.clear();
+            module_dirs.emplace_back(entry->d_name);
+            break;
+        }
         int dir_major = 0, dir_minor = 0;
         if (sscanf(entry->d_name, "%d.%d", &dir_major, &dir_minor) != 2 || dir_major != major ||
             dir_minor != minor) {
@@ -228,6 +246,7 @@
         bool retval = m.LoadListedModules(!want_console);
         modules_loaded = m.GetModuleCount();
         if (modules_loaded > 0) {
+            LOG(INFO) << "Loaded " << modules_loaded << " modules from " << dir_path;
             return retval;
         }
     }
@@ -237,6 +256,7 @@
                                   : m.LoadListedModules(!want_console);
     modules_loaded = m.GetModuleCount();
     if (modules_loaded > 0) {
+        LOG(INFO) << "Loaded " << modules_loaded << " modules from " << MODULE_BASE_DIR;
         return retval;
     }
     return true;
diff --git a/init/service.cpp b/init/service.cpp
index a0b3478..5e900ee 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -420,7 +420,7 @@
         }
     });
 
-    if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) {
+    if (is_updatable() && !IsDefaultMountNamespaceReady()) {
         // Don't delay the service for ExecStart() as the semantic is that
         // the caller might depend on the side effect of the execution.
         return Error() << "Cannot start an updatable service '" << name_
@@ -581,7 +581,7 @@
         }
     });
 
-    if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) {
+    if (is_updatable() && !IsDefaultMountNamespaceReady()) {
         ServiceList::GetInstance().DelayService(*this);
         return Error() << "Cannot start an updatable service '" << name_
                        << "' before configs from APEXes are all loaded. "
diff --git a/init/service.h b/init/service.h
index b858eef..9f09cef 100644
--- a/init/service.h
+++ b/init/service.h
@@ -60,7 +60,7 @@
 #define SVC_GENTLE_KILL 0x2000  // This service should be stopped with SIGTERM instead of SIGKILL
                                 // Will still be SIGKILLed after timeout period of 200 ms
 
-#define NR_SVC_SUPP_GIDS 12    // twelve supplementary groups
+#define NR_SVC_SUPP_GIDS 32    // thirty two supplementary groups
 
 namespace android {
 namespace init {
diff --git a/init/service_list.cpp b/init/service_list.cpp
index 937d82e..1c56e8a 100644
--- a/init/service_list.cpp
+++ b/init/service_list.cpp
@@ -76,10 +76,7 @@
     return post_data_;
 }
 
-void ServiceList::MarkServicesUpdate() {
-    services_update_finished_ = true;
-
-    // start the delayed services
+void ServiceList::StartDelayedServices() {
     for (const auto& name : delayed_service_names_) {
         Service* service = FindService(name);
         if (service == nullptr) {
@@ -94,7 +91,7 @@
 }
 
 void ServiceList::DelayService(const Service& service) {
-    if (services_update_finished_) {
+    if (IsDefaultMountNamespaceReady()) {
         LOG(ERROR) << "Cannot delay the start of service '" << service.name()
                    << "' because all services are already updated. Ignoring.";
         return;
diff --git a/init/service_list.h b/init/service_list.h
index f858bc3..44e8453 100644
--- a/init/service_list.h
+++ b/init/service_list.h
@@ -85,14 +85,10 @@
 
     void MarkPostData();
     bool IsPostData();
-    void MarkServicesUpdate();
-    bool IsServicesUpdated() const { return services_update_finished_; }
     void DelayService(const Service& service);
+    void StartDelayedServices();
 
-    void ResetState() {
-        post_data_ = false;
-        services_update_finished_ = false;
-    }
+    void ResetState() { post_data_ = false; }
 
     auto size() const { return services_.size(); }
 
@@ -100,7 +96,6 @@
     std::vector<std::unique_ptr<Service>> services_;
 
     bool post_data_ = false;
-    bool services_update_finished_ = false;
     std::vector<std::string> delayed_service_names_;
 };
 
diff --git a/libutils/String8.cpp b/libutils/String8.cpp
index 79b7edf..2b72847 100644
--- a/libutils/String8.cpp
+++ b/libutils/String8.cpp
@@ -39,10 +39,6 @@
 
 namespace android {
 
-// Separator used by resource paths. This is not platform dependent contrary
-// to OS_PATH_SEPARATOR.
-#define RES_PATH_SEPARATOR '/'
-
 static inline char* getEmptyString() {
     static SharedBuffer* gEmptyStringBuf = [] {
         SharedBuffer* buf = SharedBuffer::alloc(1);
@@ -582,20 +578,4 @@
     }
 }
 
-String8& String8::convertToResPath()
-{
-#if OS_PATH_SEPARATOR != RES_PATH_SEPARATOR
-    size_t len = length();
-    if (len > 0) {
-        char * buf = lockBuffer(len);
-        for (char * end = buf + len; buf < end; ++buf) {
-            if (*buf == OS_PATH_SEPARATOR)
-                *buf = RES_PATH_SEPARATOR;
-        }
-        unlockBuffer(len);
-    }
-#endif
-    return *this;
-}
-
 }; // namespace android
diff --git a/libutils/String8_fuzz.cpp b/libutils/String8_fuzz.cpp
index 09dcacd..6f7a54f 100644
--- a/libutils/String8_fuzz.cpp
+++ b/libutils/String8_fuzz.cpp
@@ -83,9 +83,6 @@
                     str1->getPathDir();
                 },
                 [](FuzzedDataProvider*, android::String8* str1, android::String8*) -> void {
-                    str1->convertToResPath();
-                },
-                [](FuzzedDataProvider*, android::String8* str1, android::String8*) -> void {
                     std::shared_ptr<android::String8> path_out_str =
                             std::make_shared<android::String8>();
                     str1->walkPath(path_out_str.get());
diff --git a/libutils/abi-dumps/arm64/source-based/libutils.so.lsdump b/libutils/abi-dumps/arm64/source-based/libutils.so.lsdump
index c89af9e..46badde 100644
--- a/libutils/abi-dumps/arm64/source-based/libutils.so.lsdump
+++ b/libutils/abi-dumps/arm64/source-based/libutils.so.lsdump
@@ -725,9 +725,6 @@
    "name" : "_ZN7android7String813appendFormatVEPKcSt9__va_list"
   },
   {
-   "name" : "_ZN7android7String816convertToResPathEv"
-  },
-  {
    "name" : "_ZN7android7String85clearEv"
   },
   {
@@ -6928,19 +6925,6 @@
    "source_file" : "system/core/libutils/include/utils/String8.h"
   },
   {
-   "function_name" : "android::String8::convertToResPath",
-   "linker_set_key" : "_ZN7android7String816convertToResPathEv",
-   "parameters" :
-   [
-    {
-     "is_this_ptr" : true,
-     "referenced_type" : "_ZTIPN7android7String8E"
-    }
-   ],
-   "return_type" : "_ZTIRN7android7String8E",
-   "source_file" : "system/core/libutils/include/utils/String8.h"
-  },
-  {
    "function_name" : "android::String8::clear",
    "linker_set_key" : "_ZN7android7String85clearEv",
    "parameters" :
diff --git a/libutils/abi-dumps/arm_arm64/source-based/libutils.so.lsdump b/libutils/abi-dumps/arm_arm64/source-based/libutils.so.lsdump
index f88da15..219c766 100644
--- a/libutils/abi-dumps/arm_arm64/source-based/libutils.so.lsdump
+++ b/libutils/abi-dumps/arm_arm64/source-based/libutils.so.lsdump
@@ -725,9 +725,6 @@
    "name" : "_ZN7android7String813appendFormatVEPKcSt9__va_list"
   },
   {
-   "name" : "_ZN7android7String816convertToResPathEv"
-  },
-  {
    "name" : "_ZN7android7String85clearEv"
   },
   {
@@ -6924,19 +6921,6 @@
    "source_file" : "system/core/libutils/include/utils/String8.h"
   },
   {
-   "function_name" : "android::String8::convertToResPath",
-   "linker_set_key" : "_ZN7android7String816convertToResPathEv",
-   "parameters" :
-   [
-    {
-     "is_this_ptr" : true,
-     "referenced_type" : "_ZTIPN7android7String8E"
-    }
-   ],
-   "return_type" : "_ZTIRN7android7String8E",
-   "source_file" : "system/core/libutils/include/utils/String8.h"
-  },
-  {
    "function_name" : "android::String8::clear",
    "linker_set_key" : "_ZN7android7String85clearEv",
    "parameters" :
diff --git a/libutils/include/utils/String8.h b/libutils/include/utils/String8.h
index 10eef06..ea25c6a 100644
--- a/libutils/include/utils/String8.h
+++ b/libutils/include/utils/String8.h
@@ -201,15 +201,6 @@
                                              { String8 p(*this); p.appendPath(leaf); return p; }
     String8 appendPathCopy(const String8& leaf) const { return appendPathCopy(leaf.c_str()); }
 
-    /*
-     * Converts all separators in this string to /, the default path separator.
-     *
-     * If the default OS separator is backslash, this converts all
-     * backslashes to slashes, in-place. Otherwise it does nothing.
-     * Returns self.
-     */
-    String8& convertToResPath();
-
 private:
             status_t            real_append(const char* other, size_t numChars);
             char*               find_extension(void) const;
diff --git a/rootdir/Android.bp b/rootdir/Android.bp
index e98733a..c8a3cd6 100644
--- a/rootdir/Android.bp
+++ b/rootdir/Android.bp
@@ -17,12 +17,30 @@
 }
 
 prebuilt_etc {
+    name: "init.boringssl.zygote64_32.rc",
+    src: "init.boringssl.zygote64_32.rc",
+    sub_dir: "init/hw",
+    symlinks: [
+        "init.boringssl.zygote32.rc",
+        "init.boringssl.no_zygote.rc",
+    ],
+}
+
+prebuilt_etc {
+    name: "init.boringssl.zygote64.rc",
+    src: "init.boringssl.zygote64.rc",
+    sub_dir: "init/hw",
+}
+
+prebuilt_etc {
     name: "init.rc",
     src: "init.rc",
     sub_dir: "init/hw",
     required: [
         "fsverity_init",
         "platform-bootclasspath",
+        "init.boringssl.zygote64.rc",
+        "init.boringssl.zygote64_32.rc",
     ],
 }
 
diff --git a/rootdir/init.boringssl.zygote64.rc b/rootdir/init.boringssl.zygote64.rc
new file mode 100644
index 0000000..3f49fea
--- /dev/null
+++ b/rootdir/init.boringssl.zygote64.rc
@@ -0,0 +1,4 @@
+on init && property:ro.product.cpu.abilist64=*
+    exec_start boringssl_self_test64
+on property:apexd.status=ready && property:ro.product.cpu.abilist64=*
+    exec_start boringssl_self_test_apex64
diff --git a/rootdir/init.boringssl.zygote64_32.rc b/rootdir/init.boringssl.zygote64_32.rc
new file mode 100644
index 0000000..c0be42d
--- /dev/null
+++ b/rootdir/init.boringssl.zygote64_32.rc
@@ -0,0 +1,8 @@
+on init && property:ro.product.cpu.abilist32=*
+    exec_start boringssl_self_test32
+on init && property:ro.product.cpu.abilist64=*
+    exec_start boringssl_self_test64
+on property:apexd.status=ready && property:ro.product.cpu.abilist32=*
+    exec_start boringssl_self_test_apex32
+on property:apexd.status=ready && property:ro.product.cpu.abilist64=*
+    exec_start boringssl_self_test_apex64
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 0d31cdc..487e5da 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -459,14 +459,7 @@
     start vndservicemanager
 
 # Run boringssl self test for each ABI.  Any failures trigger reboot to firmware.
-on init && property:ro.product.cpu.abilist32=*
-    exec_start boringssl_self_test32
-on init && property:ro.product.cpu.abilist64=*
-    exec_start boringssl_self_test64
-on property:apexd.status=ready && property:ro.product.cpu.abilist32=*
-    exec_start boringssl_self_test_apex32
-on property:apexd.status=ready && property:ro.product.cpu.abilist64=*
-    exec_start boringssl_self_test_apex64
+import /system/etc/init/hw/init.boringssl.${ro.zygote}.rc
 
 service boringssl_self_test32 /system/bin/boringssl_self_test32
     reboot_on_failure reboot,boringssl-self-check-failed
diff --git a/trusty/utils/coverage-controller/controller.cpp b/trusty/utils/coverage-controller/controller.cpp
index 730c010..0047046 100644
--- a/trusty/utils/coverage-controller/controller.cpp
+++ b/trusty/utils/coverage-controller/controller.cpp
@@ -14,11 +14,16 @@
  * limitations under the License.
  */
 
+#include <android-base/stringprintf.h>
+#include <array>
 #include <getopt.h>
+#include <inttypes.h>
+#include <memory>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
 #include <trusty/line-coverage/coverage.h>
 #include <trusty/tipc.h>
-#include <array>
-#include <memory>
 #include <vector>
 
 #include "controller.h"
@@ -48,10 +53,10 @@
 
             if (complete_cnt != counters[index] && start_cnt == complete_cnt) {
                 WRITE_ONCE(control->cntrl_flags, FLAG_NONE);
-                std::string fmt = "/%d.%lu.profraw";
-                int sz = std::snprintf(nullptr, 0, fmt.c_str(), index, counters[index]);
-                std::string filename(sz+1, '.');
-                std::sprintf(filename.data(), fmt.c_str(), index, counters[index]);
+                std::string filename;
+                filename = android::base::StringPrintf("/%s.%lu.profraw",
+                                                    uuid_list_[index].c_str(),
+                                                    counters[index]);
                 filename.insert(0, output_dir);
                 android::base::Result<void> res = record_list_[index]->SaveFile(filename);
                 counters[index]++;
@@ -79,6 +84,7 @@
     struct line_coverage_client_resp resp;
     uint32_t cur_index = record_list_.size();
     struct uuid zero_uuid = {0, 0, 0, { 0 }};
+    char uuid_str[UUID_STR_SIZE];
     req.hdr.cmd = LINE_COVERAGE_CLIENT_CMD_SEND_LIST;
     int rc = write(coverage_srv_fd, &req, sizeof(req));
         if (rc != (int)sizeof(req)) {
@@ -98,6 +104,21 @@
             }
             if(uuid_set_.find(resp.send_list_args.uuid) == uuid_set_.end()) {
                 uuid_set_.insert(resp.send_list_args.uuid);
+                sprintf(uuid_str,
+                    "%08" PRIx32 "-%04" PRIx16 "-%04" PRIx16 "-%02" PRIx8 "%02" PRIx8
+                    "-%02" PRIx8 "%02" PRIx8 "%02" PRIx8 "%02" PRIx8 "%02" PRIx8 "%02" PRIx8,
+                    resp.send_list_args.uuid.time_low,
+                    resp.send_list_args.uuid.time_mid,
+                    resp.send_list_args.uuid.time_hi_and_version,
+                    resp.send_list_args.uuid.clock_seq_and_node[0],
+                    resp.send_list_args.uuid.clock_seq_and_node[1],
+                    resp.send_list_args.uuid.clock_seq_and_node[2],
+                    resp.send_list_args.uuid.clock_seq_and_node[3],
+                    resp.send_list_args.uuid.clock_seq_and_node[4],
+                    resp.send_list_args.uuid.clock_seq_and_node[5],
+                    resp.send_list_args.uuid.clock_seq_and_node[6],
+                    resp.send_list_args.uuid.clock_seq_and_node[7]);
+                uuid_list_.push_back(uuid_str);
                 record_list_.push_back(std::make_unique<CoverageRecord>(TIPC_DEV,
                                                                     &resp.send_list_args.uuid));
                 counters.push_back(0);
diff --git a/trusty/utils/coverage-controller/controller.h b/trusty/utils/coverage-controller/controller.h
index b771c16..f7789bf 100644
--- a/trusty/utils/coverage-controller/controller.h
+++ b/trusty/utils/coverage-controller/controller.h
@@ -26,6 +26,8 @@
 #define TEST_SRV_PORT "com.android.trusty.sancov.test.srv"
 #define TEST_SRV_MODULE "srv.syms.elf"
 
+#define UUID_STR_SIZE (37)
+
 #define FLAG_NONE               0x0
 #define FLAG_RUN                0x1
 #define FLAG_TOGGLE_CLEAR       0x2
@@ -52,6 +54,7 @@
     private:
         std::vector<std::unique_ptr<line_coverage::CoverageRecord>>record_list_;
         std::set<struct uuid>uuid_set_;
+        std::vector<std::string>uuid_list_;
         std::vector<uint64_t> counters;
         int coverage_srv_fd;