diff --git a/src/cpu/x86/vm/globals_x86.hpp b/src/cpu/x86/vm/globals_x86.hpp
index 41917378b563e318b3946c39d700d163d17434ec..bdd705484a0d15d43391f3567c0bd425cd9b5b32 100644
--- a/src/cpu/x86/vm/globals_x86.hpp
+++ b/src/cpu/x86/vm/globals_x86.hpp
@@ -62,7 +62,7 @@ define_pd_global(intx, StackRedPages, 1);
 // due to lack of optimization caused by C++ compiler bugs
 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
 #else
-define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
+define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+5));
 #endif // AMD64
 
 define_pd_global(intx, PreInflateSpin,           10);