--- zzzz-none-000/linux-2.6.19.2/include/asm-i386/a.out.h	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/include/asm-i386/a.out.h	2007-01-19 14:42:56.000000000 +0000
@@ -19,7 +19,11 @@
 
 #ifdef __KERNEL__
 
-#define STACK_TOP	TASK_SIZE
+#ifdef CONFIG_PAX_SEGMEXEC
+#define __STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?TASK_SIZE/2:TASK_SIZE)
+#else
+#define __STACK_TOP TASK_SIZE
+#endif
 
 #endif