error: label 'deref_fault' used but not defined

[Steve Dickson]

I'm getting an "label 'deref_fault' used but not defined" error
when I try to pulling the __svc_fh() function from the
/usr/share/systemtap/tapset/nfsd.stp file. I'm calling
the function from the following prob:

probe module("nfsd").function("fh_verify")
{
     printf("fh_verify: rqstp %p fhp %p type %d access %d\n",
         $rqstp, $fhp, $type, $access);
     printf("         : %s\n", __svc_fh($fhp));
}

any ideas?

Note I'm uses systemtap-0.5.14-1.fc

steved.