[CentOS] iotop :: OSError: Netlink error: Invalid argument (22)

Fri Mar 9 07:17:59 UTC 2012
Adrian Sevcenco <Adrian.Sevcenco at cern.ch>

Hi! i have a problem with iotop :

root at alien: ~ # iotop
Traceback (most recent call last):
  File "/usr/bin/iotop", line 16, in ?
    main()
  File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 567, in main
    main_loop()
  File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 557, in <lambda>
    main_loop = lambda: run_iotop(options)
  File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 465, in
run_iotop
    return curses.wrapper(run_iotop_window, options)
  File "/usr/lib64/python2.4/curses/wrapper.py", line 44, in wrapper
    return func(stdscr, *args, **kwds)
  File "/usr/lib/python2.4/site-packages/iotop/ui.py", line 457, in
run_iotop_window
    process_list = ProcessList(taskstats_connection, options)
  File "/usr/lib/python2.4/site-packages/iotop/data.py", line 375, in
__init__
    self.update_process_counts()
  File "/usr/lib/python2.4/site-packages/iotop/data.py", line 431, in
update_process_counts
    stats = self.taskstats_connection.get_single_task_stats(thread)
  File "/usr/lib/python2.4/site-packages/iotop/data.py", line 158, in
get_single_task_stats
    reply = self.connection.recv()
  File "/usr/lib/python2.4/site-packages/iotop/netlink.py", line 229, in
recv
    raise err
OSError: Netlink error: Invalid argument (22)


CentOS release 5.5 (Final)

iotop-0.4.3-4.el5

python-2.4.3-46.el5

anyone have any idea about this problem and how can i debug/fix it?
Thanks!
Adrian