--- a/hotspot/src/share/vm/code/codeCache.cpp	Thu Apr 07 17:12:23 2011 -0700
+++ b/hotspot/src/share/vm/code/codeCache.cpp	Thu Apr 07 21:32:23 2011 -0700
@@ -971,6 +971,8 @@
   if (CodeCache_lock->owned_by_self()) {
     return _heap->largest_free_block();
   } else {
+    // Avoid lock ordering problems with ttyLock.
+    ttyUnlocker ttyul;
     MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
     return _heap->largest_free_block();
   }