iotop on Centos 5.8 - OSError: Netlink error: Invalid argument (22)

Question

When I'm attempting to run iotop on Centos 5.8 (kernel 2.6.32.9) I'm receiving the following error:

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)

iotop was installed by just using yum install iotop

Answer 1

I was able to correct this error with the following steps

1. Remove iotop installed by yum - yum remove iotop
2. Install python 2.6 - yum install python26
3. Install iotop rpm - rpm -ivh http://guichaz.free.fr/iotop/files/iotop-0.4.1-1.noarch.rpm
4. Edit /usr/bin/iotop
   • Edit first line #!/usr/bin/python to #!/usr/bin/python2.6
5. Run iotop and enjoy