diff -r 01571dfab5be -r 92501504191b hotspot/src/cpu/x86/vm/globals_x86.hpp
--- a/hotspot/src/cpu/x86/vm/globals_x86.hpp	Mon Mar 02 11:08:09 2015 +0100
+++ b/hotspot/src/cpu/x86/vm/globals_x86.hpp	Tue Mar 03 18:01:27 2015 +0100
@@ -78,7 +78,7 @@
 #endif
 
 // GC Ergo Flags
-define_pd_global(uintx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
+define_pd_global(size_t, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
 
 define_pd_global(uintx, TypeProfileLevel, 111);