diff -up tip/js/src/yarr/BumpPointerAllocator.h.ia64-assert tip/js/src/yarr/BumpPointerAllocator.h
--- tip/js/src/yarr/BumpPointerAllocator.h.ia64-assert	2011-08-23 04:50:06.000000000 -0400
+++ tip/js/src/yarr/BumpPointerAllocator.h	2011-08-23 04:50:12.000000000 -0400
@@ -36,6 +36,8 @@ namespace WTF {
 
 #if WTF_CPU_SPARC
 #define MINIMUM_BUMP_POOL_SIZE 0x2000
+#elif WTF_CPU_IA64
+#define MINIMUM_BUMP_POOL_SIZE 0x4000
 #else
 #define MINIMUM_BUMP_POOL_SIZE 0x1000
 #endif