diff --git a/debuggerd/libdebuggerd/tombstone_proto.cpp b/debuggerd/libdebuggerd/tombstone_proto.cpp
index 0c93c900b..99f636e64 100644
--- a/debuggerd/libdebuggerd/tombstone_proto.cpp
+++ b/debuggerd/libdebuggerd/tombstone_proto.cpp
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <sys/sysinfo.h>
 #include <time.h>
 
 #include <memory>
@@ -596,14 +597,6 @@ static void dump_tags_around_fault_addr(Signal* signal, const Tombstone& tombsto
   }
 }
 
-static std::optional<uint64_t> read_uptime_secs() {
-  std::string uptime;
-  if (!android::base::ReadFileToString("/proc/uptime", &uptime)) {
-    return {};
-  }
-  return strtoll(uptime.c_str(), nullptr, 10);
-}
-
 void engrave_tombstone_proto(Tombstone* tombstone, unwindstack::Unwinder* unwinder,
                              const std::map<pid_t, ThreadInfo>& threads, pid_t target_thread,
                              const ProcessInfo& process_info, const OpenFilesList* open_files) {
@@ -614,28 +607,24 @@ void engrave_tombstone_proto(Tombstone* tombstone, unwindstack::Unwinder* unwind
   result.set_revision(android::base::GetProperty("ro.revision", "unknown"));
   result.set_timestamp(get_timestamp());
 
-  std::optional<uint64_t> system_uptime = read_uptime_secs();
-  if (system_uptime) {
-    android::procinfo::ProcessInfo proc_info;
-    std::string error;
-    if (android::procinfo::GetProcessInfo(target_thread, &proc_info, &error)) {
-      uint64_t starttime = proc_info.starttime / sysconf(_SC_CLK_TCK);
-      result.set_process_uptime(*system_uptime - starttime);
-    } else {
-      async_safe_format_log(ANDROID_LOG_ERROR, LOG_TAG, "failed to read process info: %s",
-                            error.c_str());
-    }
-  } else {
-    async_safe_format_log(ANDROID_LOG_ERROR, LOG_TAG, "failed to read /proc/uptime: %s",
-                          strerror(errno));
-  }
-
   const ThreadInfo& main_thread = threads.at(target_thread);
   result.set_pid(main_thread.pid);
   result.set_tid(main_thread.tid);
   result.set_uid(main_thread.uid);
   result.set_selinux_label(main_thread.selinux_label);
 
+  struct sysinfo si;
+  sysinfo(&si);
+  android::procinfo::ProcessInfo proc_info;
+  std::string error;
+  if (android::procinfo::GetProcessInfo(main_thread.pid, &proc_info, &error)) {
+    uint64_t starttime = proc_info.starttime / sysconf(_SC_CLK_TCK);
+    result.set_process_uptime(si.uptime - starttime);
+  } else {
+    async_safe_format_log(ANDROID_LOG_ERROR, LOG_TAG, "failed to read process info: %s",
+                          error.c_str());
+  }
+
   auto cmd_line = result.mutable_command_line();
   for (const auto& arg : main_thread.command_line) {
     *cmd_line->Add() = arg;
diff --git a/debuggerd/seccomp_policy/crash_dump.arm.policy b/debuggerd/seccomp_policy/crash_dump.arm.policy
index 4eac0e92a..8fd03c427 100644
--- a/debuggerd/seccomp_policy/crash_dump.arm.policy
+++ b/debuggerd/seccomp_policy/crash_dump.arm.policy
@@ -20,6 +20,7 @@ getdents64: 1
 faccessat: 1
 recvmsg: 1
 recvfrom: 1
+sysinfo: 1
 process_vm_readv: 1
 tgkill: 1
 rt_sigprocmask: 1
diff --git a/debuggerd/seccomp_policy/crash_dump.arm64.policy b/debuggerd/seccomp_policy/crash_dump.arm64.policy
index 21887abe0..858a338bd 100644
--- a/debuggerd/seccomp_policy/crash_dump.arm64.policy
+++ b/debuggerd/seccomp_policy/crash_dump.arm64.policy
@@ -19,6 +19,7 @@ getdents64: 1
 faccessat: 1
 recvmsg: 1
 recvfrom: 1
+sysinfo: 1
 process_vm_readv: 1
 tgkill: 1
 rt_sigprocmask: 1
diff --git a/debuggerd/seccomp_policy/crash_dump.policy.def b/debuggerd/seccomp_policy/crash_dump.policy.def
index 90843fcba..152697cf3 100644
--- a/debuggerd/seccomp_policy/crash_dump.policy.def
+++ b/debuggerd/seccomp_policy/crash_dump.policy.def
@@ -25,6 +25,7 @@ getdents64: 1
 faccessat: 1
 recvmsg: 1
 recvfrom: 1
+sysinfo: 1
 
 process_vm_readv: 1
 
diff --git a/debuggerd/seccomp_policy/crash_dump.x86.policy b/debuggerd/seccomp_policy/crash_dump.x86.policy
index 4eac0e92a..8fd03c427 100644
--- a/debuggerd/seccomp_policy/crash_dump.x86.policy
+++ b/debuggerd/seccomp_policy/crash_dump.x86.policy
@@ -20,6 +20,7 @@ getdents64: 1
 faccessat: 1
 recvmsg: 1
 recvfrom: 1
+sysinfo: 1
 process_vm_readv: 1
 tgkill: 1
 rt_sigprocmask: 1
diff --git a/debuggerd/seccomp_policy/crash_dump.x86_64.policy b/debuggerd/seccomp_policy/crash_dump.x86_64.policy
index 1585cc6ee..281e231b0 100644
--- a/debuggerd/seccomp_policy/crash_dump.x86_64.policy
+++ b/debuggerd/seccomp_policy/crash_dump.x86_64.policy
@@ -19,6 +19,7 @@ getdents64: 1
 faccessat: 1
 recvmsg: 1
 recvfrom: 1
+sysinfo: 1
 process_vm_readv: 1
 tgkill: 1
 rt_sigprocmask: 1