diff --git a/liblog/include/log/log_time.h b/liblog/include/log/log_time.h
index 5f70f7d..9ece0b3 100644
--- a/liblog/include/log/log_time.h
+++ b/liblog/include/log/log_time.h
@@ -41,13 +41,12 @@
   static const uint32_t tv_sec_max = 0xFFFFFFFFUL;
   static const uint32_t tv_nsec_max = 999999999UL;
 
-  log_time(const timespec& T) {
-    tv_sec = static_cast<uint32_t>(T.tv_sec);
-    tv_nsec = static_cast<uint32_t>(T.tv_nsec);
+  log_time(const timespec& T)
+      : tv_sec(static_cast<uint32_t>(T.tv_sec)),
+        tv_nsec(static_cast<uint32_t>(T.tv_nsec)) {
   }
-  log_time(uint32_t sec, uint32_t nsec) {
-    tv_sec = sec;
-    tv_nsec = nsec;
+  explicit log_time(uint32_t sec, uint32_t nsec = 0)
+      : tv_sec(sec), tv_nsec(nsec) {
   }
 #ifdef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_
 #define __struct_log_time_private_defined
@@ -56,14 +55,14 @@
   log_time() {
   }
 #ifdef __linux__
-  log_time(clockid_t id) {
+  explicit log_time(clockid_t id) {
     timespec T;
     clock_gettime(id, &T);
     tv_sec = static_cast<uint32_t>(T.tv_sec);
     tv_nsec = static_cast<uint32_t>(T.tv_nsec);
   }
 #endif
-  log_time(const char* T) {
+  explicit log_time(const char* T) {
     const uint8_t* c = reinterpret_cast<const uint8_t*>(T);
     tv_sec = c[0] | (static_cast<uint32_t>(c[1]) << 8) |
              (static_cast<uint32_t>(c[2]) << 16) |
diff --git a/logd/LogBuffer.cpp b/logd/LogBuffer.cpp
index 1eda15d..4aa2c9f 100644
--- a/logd/LogBuffer.cpp
+++ b/logd/LogBuffer.cpp
@@ -1120,9 +1120,22 @@
 
     log_time max = start;
 
+    LogBufferElement* lastElement = nullptr;  // iterator corruption paranoia
+    static const size_t maxSkip = 4194304;    // maximum entries to skip
+    size_t skip = maxSkip;
     for (; it != mLogElements.end(); ++it) {
         LogBufferElement* element = *it;
 
+        if (!--skip) {
+            android::prdebug("reader.per: too many elements skipped");
+            break;
+        }
+        if (element == lastElement) {
+            android::prdebug("reader.per: identical elements");
+            break;
+        }
+        lastElement = element;
+
         if (!privileged && (element->getUid() != uid)) {
             continue;
         }
@@ -1167,6 +1180,7 @@
             return max;
         }
 
+        skip = maxSkip;
         pthread_mutex_lock(&mLogElementsLock);
     }
     pthread_mutex_unlock(&mLogElementsLock);
diff --git a/logd/tests/logd_test.cpp b/logd/tests/logd_test.cpp
index ddff393..c81aa32 100644
--- a/logd/tests/logd_test.cpp
+++ b/logd/tests/logd_test.cpp
@@ -668,8 +668,12 @@
     while (--i) {
         int fd = socket_local_client("logdr", ANDROID_SOCKET_NAMESPACE_RESERVED,
                                      SOCK_SEQPACKET);
-        EXPECT_LT(0, fd);
-        if (fd < 0) _exit(fd);
+        int save_errno = errno;
+        if (fd < 0) {
+            fprintf(stderr, "failed to open /dev/socket/logdr %s\n",
+                    strerror(save_errno));
+            _exit(fd);
+        }
 
         std::string ask = android::base::StringPrintf(
             "dumpAndClose lids=0,1,2,3,4,5 timeout=6 start=%" PRIu32
@@ -721,8 +725,12 @@
         // active _or_ inactive during the test.
         if (content_timeout) {
             log_time msg(msg_timeout.entry.sec, msg_timeout.entry.nsec);
-            EXPECT_FALSE(msg < now);
-            if (msg < now) _exit(-1);
+            if (msg < now) {
+                fprintf(stderr, "%u.%09u < %u.%09u\n", msg_timeout.entry.sec,
+                        msg_timeout.entry.nsec, (unsigned)now.tv_sec,
+                        (unsigned)now.tv_nsec);
+                _exit(-1);
+            }
             if (msg > now) {
                 now = msg;
                 now.tv_sec += 30;