diff --git a/bootstat/boot_event_record_store.cpp b/bootstat/boot_event_record_store.cpp
index 78be944..f902af3 100644
--- a/bootstat/boot_event_record_store.cpp
+++ b/bootstat/boot_event_record_store.cpp
@@ -46,24 +46,6 @@
 
   *uptime = file_stat.st_mtime;
 
-  // The following code (till function exit) is a debug test to ensure the
-  // validity of the file mtime value, i.e., to check that the record file
-  // mtime values are not changed once set.
-  // TODO(jhawkins): Remove this code.
-  std::string content;
-  if (!android::base::ReadFileToString(path, &content)) {
-    PLOG(ERROR) << "Failed to read " << path;
-    return false;
-  }
-
-  // Ignore existing bootstat records (which do not contain file content).
-  if (!content.empty()) {
-    int32_t value;
-    if (android::base::ParseInt(content, &value)) {
-      bootstat::LogHistogram("bootstat_mtime_matches_content", value == *uptime);
-    }
-  }
-
   return true;
 }
 
@@ -89,16 +71,6 @@
     return;
   }
 
-  // Writing the value as content in the record file is a debug measure to
-  // ensure the validity of the file mtime value, i.e., to check that the record
-  // file mtime values are not changed once set.
-  // TODO(jhawkins): Remove this block.
-  if (!android::base::WriteStringToFd(std::to_string(value), record_fd)) {
-    PLOG(ERROR) << "Failed to write value to " << record_path;
-    close(record_fd);
-    return;
-  }
-
   // Fill out the stat structure for |record_path| in order to get the atime to
   // set in the utime() call.
   struct stat file_stat;
diff --git a/bootstat/boot_event_record_store_test.cpp b/bootstat/boot_event_record_store_test.cpp
index 01c2cc1..90f6513 100644
--- a/bootstat/boot_event_record_store_test.cpp
+++ b/bootstat/boot_event_record_store_test.cpp
@@ -45,14 +45,6 @@
     return false;
   }
 
-  // Writing the value as content in the record file is a debug measure to
-  // ensure the validity of the file mtime value, i.e., to check that the record
-  // file mtime values are not changed once set.
-  // TODO(jhawkins): Remove this block.
-  if (!android::base::WriteStringToFd(std::to_string(value), record_fd)) {
-    return false;
-  }
-
   // Set the |mtime| of the file to store the value of the boot event while
   // preserving the |atime|.
   struct timeval atime = {/* tv_sec */ 0, /* tv_usec */ 0};
diff --git a/debuggerd/crash_dump.cpp b/debuggerd/crash_dump.cpp
index b9dfedb..831150b 100644
--- a/debuggerd/crash_dump.cpp
+++ b/debuggerd/crash_dump.cpp
@@ -57,8 +57,9 @@
 }
 
 // Attach to a thread, and verify that it's still a member of the given process
-static bool ptrace_attach_thread(pid_t pid, pid_t tid) {
+static bool ptrace_attach_thread(pid_t pid, pid_t tid, std::string* error) {
   if (ptrace(PTRACE_ATTACH, tid, 0, 0) != 0) {
+    *error = StringPrintf("failed to attach to thread %d: %s", tid, strerror(errno));
     return false;
   }
 
@@ -67,7 +68,7 @@
     if (ptrace(PTRACE_DETACH, tid, 0, 0) != 0) {
       PLOG(FATAL) << "failed to detach from thread " << tid;
     }
-    errno = ECHILD;
+    *error = StringPrintf("thread %d is not in process %d", tid, pid);
     return false;
   }
   return true;
@@ -244,9 +245,9 @@
 
   check_process(target_proc_fd, target);
 
-  int attach_error = 0;
-  if (!ptrace_attach_thread(target, main_tid)) {
-    PLOG(FATAL) << "failed to attach to thread " << main_tid << " in process " << target;
+  std::string attach_error;
+  if (!ptrace_attach_thread(target, main_tid, &attach_error)) {
+    LOG(FATAL) << attach_error;
   }
 
   check_process(target_proc_fd, target);
@@ -268,10 +269,6 @@
     TEMP_FAILURE_RETRY(dup2(devnull.get(), STDOUT_FILENO));
   }
 
-  if (attach_error != 0) {
-    PLOG(FATAL) << "failed to attach to thread " << main_tid << " in process " << target;
-  }
-
   LOG(INFO) << "performing dump of process " << target << " (target tid = " << main_tid << ")";
 
   // At this point, the thread that made the request has been PTRACE_ATTACHed
@@ -307,6 +304,7 @@
   bool fatal_signal = signo != DEBUGGER_SIGNAL;
   int resume_signal = fatal_signal ? signo : 0;
   std::set<pid_t> siblings;
+  std::set<pid_t> attached_siblings;
   if (resume_signal == 0) {
     if (!android::procinfo::GetProcessTids(target, &siblings)) {
       PLOG(FATAL) << "failed to get process siblings";
@@ -314,8 +312,10 @@
     siblings.erase(main_tid);
 
     for (pid_t sibling_tid : siblings) {
-      if (!ptrace_attach_thread(target, sibling_tid)) {
-        PLOG(FATAL) << "failed to attach to thread " << main_tid << " in process " << target;
+      if (!ptrace_attach_thread(target, sibling_tid, &attach_error)) {
+        LOG(WARNING) << attach_error;
+      } else {
+        attached_siblings.insert(sibling_tid);
       }
     }
   }
@@ -328,14 +328,14 @@
   std::string amfd_data;
 
   if (backtrace) {
-    dump_backtrace(output_fd.get(), backtrace_map.get(), target, main_tid, siblings, 0);
+    dump_backtrace(output_fd.get(), backtrace_map.get(), target, main_tid, attached_siblings, 0);
   } else {
     // Collect the list of open files.
     OpenFilesList open_files;
     populate_open_files_list(target, &open_files);
 
-    engrave_tombstone(output_fd.get(), backtrace_map.get(), open_files, target, main_tid, siblings,
-                      abort_address, fatal_signal ? &amfd_data : nullptr);
+    engrave_tombstone(output_fd.get(), backtrace_map.get(), open_files, target, main_tid,
+                      attached_siblings, abort_address, fatal_signal ? &amfd_data : nullptr);
   }
 
   bool wait_for_gdb = android::base::GetBoolProperty("debug.debuggerd.wait_for_gdb", false);
@@ -357,7 +357,7 @@
     }
   }
 
-  for (pid_t tid : siblings) {
+  for (pid_t tid : attached_siblings) {
     // Don't send the signal to sibling threads.
     if (ptrace(PTRACE_DETACH, tid, 0, wait_for_gdb ? SIGSTOP : 0) != 0) {
       PLOG(ERROR) << "ptrace detach from " << tid << " failed";
diff --git a/debuggerd/tombstoned/tombstoned.cpp b/debuggerd/tombstoned/tombstoned.cpp
index 3c1dcaf..63e3dbd 100644
--- a/debuggerd/tombstoned/tombstoned.cpp
+++ b/debuggerd/tombstoned/tombstoned.cpp
@@ -110,7 +110,7 @@
   }
 
   result.reset(
-    openat(tombstone_directory_fd, buf, O_CREAT | O_EXCL | O_WRONLY | O_APPEND, O_CLOEXEC, 0700));
+    openat(tombstone_directory_fd, buf, O_CREAT | O_EXCL | O_WRONLY | O_APPEND | O_CLOEXEC, 0700));
   if (result == -1) {
     PLOG(FATAL) << "failed to create tombstone at " << kTombstoneDirectory << buf;
   }
diff --git a/init/Android.mk b/init/Android.mk
index 6615692..35e6f4f 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -70,6 +70,7 @@
     init.cpp \
     keychords.cpp \
     property_service.cpp \
+    seccomp.cpp \
     signal_handler.cpp \
     ueventd.cpp \
     ueventd_parser.cpp \
@@ -96,6 +97,7 @@
     libbase \
     libc \
     libselinux \
+    libseccomp_policy \
     liblog \
     libcrypto_utils \
     libcrypto \
diff --git a/init/init.cpp b/init/init.cpp
index ee5add8..ddc707f 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -62,6 +62,7 @@
 #include "keychords.h"
 #include "log.h"
 #include "property_service.h"
+#include "seccomp.h"
 #include "service.h"
 #include "signal_handler.h"
 #include "ueventd.h"
@@ -262,26 +263,18 @@
     panic();
 }
 
-#define MMAP_RND_PATH "/proc/sys/vm/mmap_rnd_bits"
-#define MMAP_RND_COMPAT_PATH "/proc/sys/vm/mmap_rnd_compat_bits"
-
-/* __attribute__((unused)) due to lack of mips support: see mips block
- * in set_mmap_rnd_bits_action */
-static bool __attribute__((unused)) set_mmap_rnd_bits_min(int start, int min, bool compat) {
-    std::string path;
-    if (compat) {
-        path = MMAP_RND_COMPAT_PATH;
-    } else {
-        path = MMAP_RND_PATH;
-    }
+static bool set_highest_available_option_value(std::string path, int min, int max)
+{
     std::ifstream inf(path, std::fstream::in);
     if (!inf) {
         LOG(ERROR) << "Cannot open for reading: " << path;
         return false;
     }
-    while (start >= min) {
+
+    int current = max;
+    while (current >= min) {
         // try to write out new value
-        std::string str_val = std::to_string(start);
+        std::string str_val = std::to_string(current);
         std::ofstream of(path, std::fstream::out);
         if (!of) {
             LOG(ERROR) << "Cannot open for writing: " << path;
@@ -297,16 +290,33 @@
         if (str_val.compare(str_rec) == 0) {
             break;
         }
-        start--;
+        current--;
     }
     inf.close();
-    if (start < min) {
-        LOG(ERROR) << "Unable to set minimum required entropy " << min << " in " << path;
+
+    if (current < min) {
+        LOG(ERROR) << "Unable to set minimum option value " << min << " in " << path;
         return false;
     }
     return true;
 }
 
+#define MMAP_RND_PATH "/proc/sys/vm/mmap_rnd_bits"
+#define MMAP_RND_COMPAT_PATH "/proc/sys/vm/mmap_rnd_compat_bits"
+
+/* __attribute__((unused)) due to lack of mips support: see mips block
+ * in set_mmap_rnd_bits_action */
+static bool __attribute__((unused)) set_mmap_rnd_bits_min(int start, int min, bool compat) {
+    std::string path;
+    if (compat) {
+        path = MMAP_RND_COMPAT_PATH;
+    } else {
+        path = MMAP_RND_PATH;
+    }
+
+    return set_highest_available_option_value(path, min, start);
+}
+
 /*
  * Set /proc/sys/vm/mmap_rnd_bits and potentially
  * /proc/sys/vm/mmap_rnd_compat_bits to the maximum supported values.
@@ -359,6 +369,25 @@
     return ret;
 }
 
+#define KPTR_RESTRICT_PATH "/proc/sys/kernel/kptr_restrict"
+#define KPTR_RESTRICT_MINVALUE 2
+#define KPTR_RESTRICT_MAXVALUE 4
+
+/* Set kptr_restrict to the highest available level.
+ *
+ * Aborts if unable to set this to an acceptable value.
+ */
+static int set_kptr_restrict_action(const std::vector<std::string>& args)
+{
+    std::string path = KPTR_RESTRICT_PATH;
+
+    if (!set_highest_available_option_value(path, KPTR_RESTRICT_MINVALUE, KPTR_RESTRICT_MAXVALUE)) {
+        LOG(ERROR) << "Unable to set adequate kptr_restrict value!";
+        security_failure();
+    }
+    return 0;
+}
+
 static int keychord_init_action(const std::vector<std::string>& args)
 {
     keychord_init();
@@ -763,6 +792,12 @@
 
         // Now set up SELinux for second stage.
         selinux_initialize(false);
+
+        // Install system-wide seccomp filter
+        if (!set_seccomp_filter()) {
+            LOG(ERROR) << "Failed to set seccomp policy";
+            security_failure();
+        }
     }
 
     // These directories were necessarily created before initial policy load
@@ -811,6 +846,7 @@
     // ... so that we can start queuing up actions that require stuff from /dev.
     am.QueueBuiltinAction(mix_hwrng_into_linux_rng_action, "mix_hwrng_into_linux_rng");
     am.QueueBuiltinAction(set_mmap_rnd_bits_action, "set_mmap_rnd_bits");
+    am.QueueBuiltinAction(set_kptr_restrict_action, "set_kptr_restrict");
     am.QueueBuiltinAction(keychord_init_action, "keychord_init");
     am.QueueBuiltinAction(console_init_action, "console_init");
 
diff --git a/init/property_service.cpp b/init/property_service.cpp
index 498a5a1..72fcb5b 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -439,6 +439,8 @@
 
 void property_load_boot_defaults() {
     load_properties_from_file(PROP_PATH_RAMDISK_DEFAULT, NULL);
+    load_properties_from_file(PROP_PATH_ODM_DEFAULT, NULL);
+    load_properties_from_file(PROP_PATH_VENDOR_DEFAULT, NULL);
 }
 
 static void load_override_properties() {
@@ -501,6 +503,7 @@
 
 void load_system_props() {
     load_properties_from_file(PROP_PATH_SYSTEM_BUILD, NULL);
+    load_properties_from_file(PROP_PATH_ODM_BUILD, NULL);
     load_properties_from_file(PROP_PATH_VENDOR_BUILD, NULL);
     load_properties_from_file(PROP_PATH_FACTORY, "ro.*");
     load_recovery_id_prop();
diff --git a/init/seccomp.cpp b/init/seccomp.cpp
new file mode 100644
index 0000000..d9f2f79
--- /dev/null
+++ b/init/seccomp.cpp
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "seccomp.h"
+
+#include <vector>
+
+#include <sys/prctl.h>
+
+#include <linux/unistd.h>
+#include <linux/audit.h>
+#include <linux/filter.h>
+#include <linux/seccomp.h>
+
+#include "log.h"
+#include "seccomp_policy.h"
+
+#define syscall_nr (offsetof(struct seccomp_data, nr))
+#define arch_nr (offsetof(struct seccomp_data, arch))
+
+#if   defined __arm__
+#define AUDIT_ARCH_NR AUDIT_ARCH_ARM
+#elif defined __aarch64__
+#define AUDIT_ARCH_NR AUDIT_ARCH_AARCH64
+#define AUDIT_ARCH_NR32 AUDIT_ARCH_ARM
+#elif defined __i386__
+#define AUDIT_ARCH_NR AUDIT_ARCH_I386
+#elif defined __x86_64__
+#define AUDIT_ARCH_NR AUDIT_ARCH_X86_64
+#define AUDIT_ARCH_NR32 AUDIT_ARCH_I386
+#elif defined __mips64__
+#define AUDIT_ARCH_NR AUDIT_ARCH_MIPS64
+#define AUDIT_ARCH_NR32 AUDIT_ARCH_MIPS
+#elif defined __mips__ && !defined __mips64__
+#define AUDIT_ARCH_NR AUDIT_ARCH_MIPS
+#else
+#error "Could not determine AUDIT_ARCH_NR for this architecture"
+#endif
+
+typedef std::vector<sock_filter> filter;
+
+// We want to keep the below inline functions for debugging and future
+// development even though they are not used currently.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+
+static inline void Kill(filter& f) {
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL));
+}
+
+static inline void Trap(filter& f) {
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRAP));
+}
+
+static inline void Error(filter& f, __u16 retcode) {
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO + retcode));
+}
+
+inline static void Trace(filter& f) {
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE));
+}
+
+inline static void Allow(filter& f) {
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW));
+}
+
+inline static void AllowSyscall(filter& f, __u32 num) {
+    f.push_back(BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, num, 0, 1));
+    f.push_back(BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW));
+}
+
+inline static void ExamineSyscall(filter& f) {
+    f.push_back(BPF_STMT(BPF_LD|BPF_W|BPF_ABS, syscall_nr));
+}
+
+#ifdef AUDIT_ARCH_NR32
+inline static int SetValidateArchitectureJumpTarget(size_t offset, filter& f) {
+    auto jump_length = f.size() - offset - 1;
+    auto u8_jump_length = (__u8) jump_length;
+    if (u8_jump_length != jump_length) {
+        LOG(ERROR) << "Can't set jump greater than 255 - actual jump is " << jump_length;
+        return -1;
+    }
+    f[offset] = BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, AUDIT_ARCH_NR32, u8_jump_length, 0);
+    return 0;
+}
+#endif
+
+inline static size_t ValidateArchitectureAndJumpIfNeeded(filter& f) {
+    f.push_back(BPF_STMT(BPF_LD|BPF_W|BPF_ABS, arch_nr));
+
+#ifdef AUDIT_ARCH_NR32
+    f.push_back(BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, AUDIT_ARCH_NR, 2, 0));
+    f.push_back(BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, AUDIT_ARCH_NR32, 1, 0));
+    Kill(f);
+    return f.size() - 2;
+#else
+    f.push_back(BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, AUDIT_ARCH_NR, 1, 0));
+    Kill(f);
+    return 0;
+#endif
+}
+
+#pragma clang diagnostic pop
+
+static bool install_filter(filter const& f) {
+    struct sock_fprog prog = {
+        (unsigned short) f.size(),
+        (struct sock_filter*) &f[0],
+    };
+
+    if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog) < 0) {
+        PLOG(ERROR) << "SECCOMP: Could not set seccomp filter";
+        return false;
+    }
+
+    LOG(INFO) << "SECCOMP: Global filter installed";
+    return true;
+}
+
+bool set_seccomp_filter() {
+    filter f;
+
+    // Note that for mixed 64/32 bit architectures, ValidateArchitecture inserts a
+    // jump that must be changed to point to the start of the 32-bit policy
+    // 32 bit syscalls will not hit the policy between here and the call to SetJump
+#ifdef AUDIT_ARCH_NR32
+    auto offset_to_32bit_filter =
+#endif
+        ValidateArchitectureAndJumpIfNeeded(f);
+
+    // Native filter
+    ExamineSyscall(f);
+
+#ifdef __aarch64__
+    // Syscalls needed to boot Android
+    AllowSyscall(f, __NR_pivot_root);
+    AllowSyscall(f, __NR_ioprio_get);
+    AllowSyscall(f, __NR_ioprio_set);
+    AllowSyscall(f, __NR_gettid);
+    AllowSyscall(f, __NR_futex);
+    AllowSyscall(f, __NR_clone);
+    AllowSyscall(f, __NR_rt_sigreturn);
+    AllowSyscall(f, __NR_rt_tgsigqueueinfo);
+    AllowSyscall(f, __NR_add_key);
+    AllowSyscall(f, __NR_request_key);
+    AllowSyscall(f, __NR_keyctl);
+    AllowSyscall(f, __NR_restart_syscall);
+    AllowSyscall(f, __NR_getrandom);
+
+    // Needed for performance tools
+    AllowSyscall(f, __NR_perf_event_open);
+
+    // Needed for treble
+    AllowSyscall(f, __NR_finit_module);
+
+    // Needed for trusty
+    AllowSyscall(f, __NR_syncfs);
+
+     // arm64-only filter - autogenerated from bionic syscall usage
+    for (size_t i = 0; i < arm64_filter_size; ++i)
+        f.push_back(arm64_filter[i]);
+#else
+    // Generic policy
+    Allow(f);
+#endif
+
+#ifdef AUDIT_ARCH_NR32
+    if (SetValidateArchitectureJumpTarget(offset_to_32bit_filter, f) != 0)
+        return -1;
+
+    // 32-bit filter for 64-bit platforms
+    ExamineSyscall(f);
+
+#ifdef __aarch64__
+    // Syscalls needed to boot android
+    AllowSyscall(f, 120); // __NR_clone
+    AllowSyscall(f, 240); // __NR_futex
+    AllowSyscall(f, 119); // __NR_sigreturn
+    AllowSyscall(f, 173); // __NR_rt_sigreturn
+    AllowSyscall(f, 363); // __NR_rt_tgsigqueueinfo
+    AllowSyscall(f, 224); // __NR_gettid
+
+    // Syscalls needed to run Chrome
+    AllowSyscall(f, 383); // __NR_seccomp - needed to start Chrome
+    AllowSyscall(f, 384); // __NR_getrandom - needed to start Chrome
+
+    // Syscalls needed to run GFXBenchmark
+    AllowSyscall(f, 190); // __NR_vfork
+
+    // arm32-on-arm64 only filter - autogenerated from bionic syscall usage
+    for (size_t i = 0; i < arm_filter_size; ++i)
+        f.push_back(arm_filter[i]);
+#else
+    // Generic policy
+    Allow(f);
+#endif
+#endif
+    return install_filter(f);
+}
diff --git a/init/seccomp.h b/init/seccomp.h
new file mode 100644
index 0000000..cda7a89
--- /dev/null
+++ b/init/seccomp.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SECCOMP_H
+#define SECCOMP_H
+
+bool set_seccomp_filter();
+
+#endif
diff --git a/libcutils/fs_config.c b/libcutils/fs_config.c
index 594b23d..b701bba 100644
--- a/libcutils/fs_config.c
+++ b/libcutils/fs_config.c
@@ -197,7 +197,10 @@
     { 00640, AID_ROOT,      AID_SHELL,     0, "fstab.*" },
     { 00600, AID_ROOT,      AID_ROOT,      0, "system/build.prop" },
     { 00600, AID_ROOT,      AID_ROOT,      0, "vendor/build.prop" },
+    { 00600, AID_ROOT,      AID_ROOT,      0, "odm/build.prop" },
     { 00600, AID_ROOT,      AID_ROOT,      0, "default.prop" },
+    { 00600, AID_ROOT,      AID_ROOT,      0, "vendor/default.prop" },
+    { 00600, AID_ROOT,      AID_ROOT,      0, "odm/default.prop" },
     { 00644, AID_ROOT,      AID_ROOT,      0, 0 },
 };
 
diff --git a/liblog/logger_write.c b/liblog/logger_write.c
index f19c3ab..1a2d506 100644
--- a/liblog/logger_write.c
+++ b/liblog/logger_write.c
@@ -262,6 +262,8 @@
     }
 
 #if defined(__ANDROID__)
+    clock_gettime(android_log_clockid(), &ts);
+
     if (log_id == LOG_ID_SECURITY) {
         if (vec[0].iov_len < 4) {
             return -EINVAL;
@@ -351,8 +353,6 @@
             return -EPERM;
         }
     }
-
-    clock_gettime(android_log_clockid(), &ts);
 #else
     /* simulate clock_gettime(CLOCK_REALTIME, &ts); */
     {
diff --git a/logd/tests/logd_test.cpp b/logd/tests/logd_test.cpp
index 703c0fb..13a7922 100644
--- a/logd/tests/logd_test.cpp
+++ b/logd/tests/logd_test.cpp
@@ -196,7 +196,9 @@
     EXPECT_TRUE(NULL != main_logs);
 
     char *radio_logs = strstr(cp, "\nChattiest UIDs in radio ");
-    EXPECT_TRUE(NULL != radio_logs);
+    if (!radio_logs) GTEST_LOG_(INFO) << "Value of: NULL != radio_logs\n"
+                                         "Actual: false\n"
+                                         "Expected: false\n";
 
     char *system_logs = strstr(cp, "\nChattiest UIDs in system ");
     EXPECT_TRUE(NULL != system_logs);
@@ -942,8 +944,16 @@
         return 0;
     }
 
-    // Requests dac_read_search, falls back to request dac_override
-    rate /= 2;
+    // The key here is we are root, but we are in u:r:shell:s0,
+    // and the directory does not provide us DAC access
+    // (eg: 0700 system system) so we trigger the pair dac_override
+    // and dac_read_search on every try to get past the message
+    // de-duper.  We will also rotate the file name in the directory
+    // as another measure.
+    static const char file[] = "/data/backup/cannot_access_directory_%u";
+    static const unsigned avc_requests_per_access = 2;
+
+    rate /= avc_requests_per_access;
     useconds_t usec;
     if (rate == 0) {
         rate = 1;
@@ -951,15 +961,12 @@
     } else {
         usec = (1000000 + (rate / 2)) / rate;
     }
-    num = (num + 1) / 2;
+    num = (num + (avc_requests_per_access / 2)) / avc_requests_per_access;
 
     if (usec < 2) usec = 2;
 
     while (num > 0) {
-        if (access(android::base::StringPrintf(
-                       "/data/misc/logd/cannot_access_directory_%u",
-                       num).c_str(),
-                   F_OK) == 0) {
+        if (access(android::base::StringPrintf(file, num).c_str(), F_OK) == 0) {
             _exit(-1);
             // NOTREACHED
             return 0;
@@ -1002,7 +1009,7 @@
 
         // int len = get4LE(eventData + 4 + 1);
         log_msg.buf[LOGGER_ENTRY_MAX_LEN] = '\0';
-        const char *cp = strstr(eventData + 4 + 1 + 4, "): avc: ");
+        const char *cp = strstr(eventData + 4 + 1 + 4, "): avc: denied");
         if (!cp) continue;
 
         ++count;
@@ -1055,8 +1062,7 @@
     // give logd another 3 seconds to react to the burst before checking
     sepolicy_rate(rate, rate * 3);
     // maximum period at double the maximum burst rate (spam filter kicked in)
-    EXPECT_GE(((AUDIT_RATE_LIMIT_MAX * AUDIT_RATE_LIMIT_BURST_DURATION) * 130) /
-                                        100, // +30% margin
+    EXPECT_GE(threshold * 2,
               count_avc(sepolicy_rate(rate,
                                       rate * AUDIT_RATE_LIMIT_BURST_DURATION)));
     // cool down, and check unspammy rate still works
diff --git a/rootdir/init.rc b/rootdir/init.rc
index c2e25e8..8d974fa 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -118,7 +118,6 @@
     write /proc/sys/kernel/sched_child_runs_first 0
 
     write /proc/sys/kernel/randomize_va_space 2
-    write /proc/sys/kernel/kptr_restrict 2
     write /proc/sys/vm/mmap_min_addr 32768
     write /proc/sys/net/ipv4/ping_group_range "0 2147483647"
     write /proc/sys/net/unix/max_dgram_qlen 600