Adjust stack size for system_server

Change-Id: I926f07f911fdb78bc5d817ecf9a0820f463c49c8
diff --git a/src/thread.h b/src/thread.h
index 7412ea7..15ded24 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -85,7 +85,7 @@
   // Space to throw a StackOverflowError in.
   static const size_t kStackOverflowReservedBytes = 4 * KB;
 
-  static const size_t kDefaultStackSize = 64 * KB;
+  static const size_t kDefaultStackSize = 96 * KB;
 
   // Runtime support function pointers
   void (*pDebugMe)(Method*, uint32_t);