Adjust stack size for system_server

Change-Id: I926f07f911fdb78bc5d817ecf9a0820f463c49c8
diff --git a/src/thread_list.cc b/src/thread_list.cc
index 4b33908..0344243 100644
--- a/src/thread_list.cc
+++ b/src/thread_list.cc
@@ -67,6 +67,9 @@
       thread_exit_cond_("thread_exit_cond_"),
       thread_suspend_count_lock_("thread suspend count lock"),
       thread_suspend_count_cond_("thread_suspend_count_cond_") {
+  if (verbose_) {
+    LOG(INFO) << "default stack size " << Runtime::Current()->GetDefaultStackSize() / KB << "kb";
+  }
 }
 
 ThreadList::~ThreadList() {