--- a/hotspot/src/cpu/ppc/vm/globals_ppc.hpp	Fri Dec 18 13:38:49 2015 +0000
+++ b/hotspot/src/cpu/ppc/vm/globals_ppc.hpp	Sun Dec 20 10:37:23 2015 -0500
@@ -46,9 +46,9 @@
 #define DEFAULT_STACK_SHADOW_PAGES (6 DEBUG_ONLY(+2))
 #define DEFAULT_STACK_RESERVED_PAGES (0)
 
-#define MIN_STACK_YELLOW_PAGES (1)
+#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
-#define MIN_STACK_SHADOW_PAGES (1)
+#define MIN_STACK_SHADOW_PAGES (3 DEBUG_ONLY(+1))
 #define MIN_STACK_RESERVED_PAGES (0)
 
 define_pd_global(intx, StackYellowPages,      DEFAULT_STACK_YELLOW_PAGES);