--- zzzz-none-000/linux-2.6.19.2/arch/ia64/mm/fault.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/arch/ia64/mm/fault.c	2007-01-19 14:42:56.000000000 +0000
@@ -10,6 +10,7 @@
 #include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/kprobes.h>
+#include <linux/binfmts.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -85,6 +86,23 @@
 	return pte_present(pte);
 }
 
+#ifdef CONFIG_PAX_PAGEEXEC
+void pax_report_insns(void *pc, void *sp)
+{
+	unsigned long i;
+
+	printk(KERN_ERR "PAX: bytes at PC: ");
+	for (i = 0; i < 8; i++) {
+		unsigned int c;
+		if (get_user(c, (unsigned int*)pc+i))
+			printk("???????? ");
+		else
+			printk("%08x ", c);
+	}
+	printk("\n");
+}
+#endif
+
 void __kprobes
 ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs)
 {
@@ -152,9 +170,23 @@
 	mask = (  (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
 		| (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
 
-	if ((vma->vm_flags & mask) != mask)
+	if ((vma->vm_flags & mask) != mask) {
+
+#ifdef CONFIG_PAX_PAGEEXEC
+		if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
+			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
+				goto bad_area;
+
+			up_read(&mm->mmap_sem);
+			pax_report_fault(regs, (void*)regs->cr_iip, (void*)regs->r12);
+			do_exit(SIGKILL);
+		}
+#endif
+
 		goto bad_area;
 
+	}
+
   survive:
 	/*
 	 * If for any reason at all we couldn't handle the fault, make