--- jdk8/jdk/make/common/shared/Defs-java.gmk	2012-03-23 10:56:45.000000000 -0400
+++ jdk8/jdk/make/common/shared/Defs-java.gmk	2012-03-23 10:56:45.000000000 -0400
@@ -83,9 +83,9 @@
 
 # 64-bit builds require a larger thread stack size.
 ifeq ($(ARCH_DATA_MODEL), 32)
-  JAVAC_JVM_FLAGS    += -J-XX:ThreadStackSize=768
+  JAVAC_JVM_FLAGS    += -J-XX:ThreadStackSize=1152
 else
-  JAVAC_JVM_FLAGS    += -J-XX:ThreadStackSize=1536
+  JAVAC_JVM_FLAGS    += -J-XX:ThreadStackSize=1664
 endif
 JAVAC_JVM_FLAGS    += $(JAVA_TOOLS_FLAGS:%=-J%)