Failed to map segment from shared object: Operation not permitted

I’m writing a ruby wrapper for a proprietary api. I compiled it, but
when I
require it in irb i get the following error. I’m stumped as to why its
throwing this error. Anyone help?

irb(main):001:0> require ‘metadata’
LoadError: ./ failed to map segment from shared object:
Operation not permitted - ./
from ./
from (irb):1


#include <ruby.h>
#include “mdc.h”

/* Module and class names */
static VALUE md_mMetadata;
static VALUE md_cClientAPI;

md_initialize(int argc, VALUE *argv, VALUE self)
VALUE login, password, server, table_name, table_version;

  rb_scan_args(argc, argv, "41", &login, &password, &server,

&table_name, &table_version);

  if(NIL_P(table_version)) {
    rb_iv_set( self, "@table_version", Qnil );

  rb_iv_set(self, "@login", rb_funcall(login, rb_intern("to_s"), 0) 

rb_iv_set(self, “@password”, rb_funcall(password,
0) );
rb_iv_set(self, “@server”, rb_funcall(server, rb_intern(“to_s”),
0) );

  rb_iv_set(self, "@table_name", rb_funcall(table_name,

rb_intern(“to_s”),0) );

  return self;


void Init_metadata() {
md_mMetadata = rb_define_module(“Metadata”);
md_cClientAPI = rb_define_class_under(md_mMetadata, “ClientAPI”,

rb_define_method(md_cClientAPI, “initialize”, md_initialize, 4);


On Jul 3, 2008, at 9:46 PM, Tristin D. wrote:

from (irb):1
Are you compiling the code as one user and attempting to use it from a
different user account? The “Operation not permitted” usually refers
to a permissions problem.

Found this link …


Give the “restorecon” method a shot.

Oh, and this link might shed some light as well …



I tried it the solution in the 1st link, but it didn’t help.

Nevermind, I figured it out. I’m running working off of a flash drive
and I
guess by default, Ubuntu mounts it with the noexec option.

/dev/sdb1 on /media/ext type vfat (rw,noexec,nosuid,nodev)

Moving it to another directory fixed it.

On Fri, Jul 4, 2008 at 1:55 PM, Tristin D. [email protected]

I"m on Ubuntu 4.2.3-2ubuntu7.

Anyone else have any suggestions. I’ve checked and rechecked the code.
can’t find anything wrong at all.

On Fri, Jul 4, 2008 at 12:17 AM, Tristin D. [email protected]