--- a/hotspot/src/os_cpu/aix_ppc/vm/globals_aix_ppc.hpp	Thu Oct 15 17:35:42 2015 +0200
+++ b/hotspot/src/os_cpu/aix_ppc/vm/globals_aix_ppc.hpp	Thu Oct 15 13:34:21 2015 -0500
@@ -42,10 +42,6 @@
 // Allow extra space in DEBUG builds for asserts.
 define_pd_global(size_t, JVMInvokeMethodSlack,   8192);
 
-define_pd_global(intx, StackYellowPages,         6);
-define_pd_global(intx, StackRedPages,            1);
-define_pd_global(intx, StackShadowPages,         6 DEBUG_ONLY(+2));
-
 // Only used on 64 bit platforms
 define_pd_global(size_t, HeapBaseMinAddress,     2*G);