Symbol resolution problem in stap on FC5

[srinivasa]

Hi
 I have installed systemtap(systemtap-20060422) along with elfutils  
patch(elfutils-0.120.tar.gz,elfutils-portability.patch) on FC5. But when 
I wrote a simple script to probe sys_open(),sys_open didn't get probed. 
So I retained temprory files and checked it.
============================================
probe kernel.statement("sys_open") {
                printf("hi\n");
              }
==============================================

Found that in stap_9697.c address to be probed is not valid.
=====================================================
static struct kprobe dwarf_kprobe_probe_0[1]= {
  {.addr= (void *) 0xc0151313}   <<<<this adress to be probed>>>
};

char const * dwarf_kprobe_probe_0_location_names[1] = {
  "kernel.function(\"sys_open@fs/open.c:1089\")"
};
========================================================
[root@localhost stap]# cat /proc/kallsyms | grep sys_open
c0152074 T do_sys_open
c015211e T sys_openat
c0152139 T sys_open
=========================================
But when I specified the address explicitly it works cleraly.
=================================
probe kernel.statement(0xc0152139) {
                printf("hi\n");
              }
====================================
These are the kernel packages I have
===============================
rpm -qa | grep kernel
kernel-debuginfo-2.6.15-1.2054_FC5
kernel-smp-devel-2.6.15-1.2054_FC5
kernel-devel-2.6.15-1.2054_FC5
kernel-smp-2.6.15-1.2054_FC5
kernel-2.6.15-1.2054_FC5
===================================
Is my analysis is correct? or this is a bug. Please clarify.