diff --git a/fs_mgr/libfiemap/fiemap_writer_test.cpp b/fs_mgr/libfiemap/fiemap_writer_test.cpp
index c37329c..115f53e 100644
--- a/fs_mgr/libfiemap/fiemap_writer_test.cpp
+++ b/fs_mgr/libfiemap/fiemap_writer_test.cpp
@@ -66,7 +66,11 @@
         testfile = gTestDir + "/"s + tinfo->name();
     }
 
-    void TearDown() override { unlink(testfile.c_str()); }
+    void TearDown() override {
+        truncate(testfile.c_str(), 0);
+        unlink(testfile.c_str());
+        sync();
+    }
 
     // name of the file we use for testing
     std::string testfile;
diff --git a/fs_mgr/libfiemap/split_fiemap_writer.cpp b/fs_mgr/libfiemap/split_fiemap_writer.cpp
index 0df6125..1f32d2f 100644
--- a/fs_mgr/libfiemap/split_fiemap_writer.cpp
+++ b/fs_mgr/libfiemap/split_fiemap_writer.cpp
@@ -196,10 +196,13 @@
             if (access(file.c_str(), F_OK) != 0 && (errno == ENOENT || errno == ENAMETOOLONG)) {
                 continue;
             }
+            truncate(file.c_str(), 0);
             ok &= android::base::RemoveFileIfExists(file, message);
         }
     }
+    truncate(file_path.c_str(), 0);
     ok &= android::base::RemoveFileIfExists(file_path, message);
+    sync();
     return ok;
 }
 
diff --git a/libstats/pull_lazy/Android.bp b/libstats/pull_lazy/Android.bp
index 65dce26..71af170 100644
--- a/libstats/pull_lazy/Android.bp
+++ b/libstats/pull_lazy/Android.bp
@@ -32,7 +32,7 @@
         "-Wall",
         "-Werror",
     ],
-    test_suites: ["device-tests", "mts-statsd"],
+    test_suites: ["device-tests"],
     test_config: "libstatspull_lazy_test.xml",
     // TODO(b/153588990): Remove when the build system properly separates.
     // 32bit and 64bit architectures.
diff --git a/libstats/socket_lazy/Android.bp b/libstats/socket_lazy/Android.bp
index 241e87a..945a7c4 100644
--- a/libstats/socket_lazy/Android.bp
+++ b/libstats/socket_lazy/Android.bp
@@ -36,7 +36,6 @@
     ],
     test_suites: [
         "device-tests",
-        "mts-statsd",
     ],
     test_config: "libstatssocket_lazy_test.xml",
     // TODO(b/153588990): Remove when the build system properly separates.
diff --git a/libutils/binder/VectorImpl.cpp b/libutils/binder/VectorImpl.cpp
index d951b8b..a62664f 100644
--- a/libutils/binder/VectorImpl.cpp
+++ b/libutils/binder/VectorImpl.cpp
@@ -463,7 +463,8 @@
     size_t new_size;
     LOG_ALWAYS_FATAL_IF(__builtin_sub_overflow(mCount, amount, &new_size));
 
-    if (new_size < (capacity() / 2)) {
+    const size_t prev_capacity = capacity();
+    if (new_size < (prev_capacity / 2) && prev_capacity > kMinVectorCapacity) {
         // NOTE: (new_size * 2) is safe because capacity didn't overflow and
         // new_size < (capacity / 2)).
         const size_t new_capacity = max(kMinVectorCapacity, new_size * 2);
diff --git a/trusty/utils/trusty-ut-ctrl/ut-ctrl.c b/trusty/utils/trusty-ut-ctrl/ut-ctrl.c
index 6cc6670..31cfd4c 100644
--- a/trusty/utils/trusty-ut-ctrl/ut-ctrl.c
+++ b/trusty/utils/trusty-ut-ctrl/ut-ctrl.c
@@ -95,12 +95,26 @@
     TEST_FAILED = 1,
     TEST_MESSAGE = 2,
     TEST_TEXT = 3,
+    TEST_OPCODE_COUNT,
 };
 
+static int get_msg_len(const char* buf, int max_buf_len) {
+    int buf_len;
+    for (buf_len = 0; buf_len < max_buf_len; buf_len++) {
+        if ((unsigned char)buf[buf_len] < TEST_OPCODE_COUNT) {
+            break;
+        }
+    }
+    return buf_len;
+}
+
 static int run_trusty_unitest(const char* utapp) {
     int fd;
-    int rc;
-    char rx_buf[1024];
+    char read_buf[1024];
+    int read_len;
+    char* rx_buf;
+    int rx_buf_len;
+    int cmd = -1;
 
     /* connect to unitest app */
     fd = tipc_connect(dev_name, utapp);
@@ -110,22 +124,39 @@
     }
 
     /* wait for test to complete */
+    rx_buf_len = 0;
     for (;;) {
-        rc = read(fd, rx_buf, sizeof(rx_buf));
-        if (rc <= 0 || rc >= (int)sizeof(rx_buf)) {
-            fprintf(stderr, "%s: Read failed: %d\n", __func__, rc);
-            tipc_close(fd);
-            return -1;
+        if (rx_buf_len == 0) {
+            read_len = read(fd, read_buf, sizeof(read_buf));
+            if (read_len <= 0 || read_len > (int)sizeof(read_buf)) {
+                fprintf(stderr, "%s: Read failed: %d, %s\n", __func__, read_len,
+                        read_len < 0 ? strerror(errno) : "");
+                tipc_close(fd);
+                return -1;
+            }
+            rx_buf = read_buf;
+            rx_buf_len = read_len;
         }
 
-        if (rx_buf[0] == TEST_PASSED) {
+        int msg_len = get_msg_len(rx_buf, rx_buf_len);
+        if (msg_len == 0) {
+            cmd = rx_buf[0];
+            rx_buf++;
+            rx_buf_len--;
+        }
+
+        if (cmd == TEST_PASSED) {
             break;
-        } else if (rx_buf[0] == TEST_FAILED) {
+        } else if (cmd == TEST_FAILED) {
             break;
-        } else if (rx_buf[0] == TEST_MESSAGE || rx_buf[0] == TEST_TEXT) {
-            write(STDOUT_FILENO, rx_buf + 1, rc - 1);
+        } else if (cmd == TEST_MESSAGE || cmd == TEST_TEXT) {
+            if (msg_len) {
+                write(STDOUT_FILENO, rx_buf, msg_len);
+                rx_buf += msg_len;
+                rx_buf_len -= msg_len;
+            }
         } else {
-            fprintf(stderr, "%s: Bad message header: %d\n", __func__, rx_buf[0]);
+            fprintf(stderr, "%s: Bad message header: %d\n", __func__, cmd);
             break;
         }
     }
@@ -133,7 +164,7 @@
     /* close connection to unitest app */
     tipc_close(fd);
 
-    return rx_buf[0] == TEST_PASSED ? 0 : -1;
+    return cmd == TEST_PASSED ? 0 : -1;
 }
 
 int main(int argc, char** argv) {