--- a/hotspot/src/share/vm/runtime/arguments.cpp	Wed Mar 05 12:31:09 2014 -0500
+++ b/hotspot/src/share/vm/runtime/arguments.cpp	Fri Mar 14 09:26:27 2014 +0100
@@ -2408,9 +2408,11 @@
 
   status &= verify_interval(NmethodSweepFraction, 1, ReservedCodeCacheSize/K, "NmethodSweepFraction");
   status &= verify_interval(NmethodSweepActivity, 0, 2000, "NmethodSweepActivity");
+  status &= verify_interval(CodeCacheMinBlockLength, 1, 100, "CodeCacheMinBlockLength");
+  status &= verify_interval(CodeCacheSegmentSize, 1, 1024, "CodeCacheSegmentSize");
 
   // TieredCompilation needs at least 2 compiler threads.
-  const int num_min_compiler_threads = (TieredCompilation) ? 2 : 1;
+  const int num_min_compiler_threads = (TieredCompilation && (TieredStopAtLevel >= CompLevel_full_optimization)) ? 2 : 1;
   status &=verify_min_value(CICompilerCount, num_min_compiler_threads, "CICompilerCount");
 
   return status;