求助：11.10无启动声音

$ iotop
Traceback (most recent call last):
File "/usr/bin/iotop", line 16, in <module>
main()
File "/usr/lib/pymodules/python2.6/iotop/ui.py", line 547, in main
main_loop()
File "/usr/lib/pymodules/python2.6/iotop/ui.py", line 537, in <lambda>
main_loop = lambda: run_iotop(options)
File "/usr/lib/pymodules/python2.6/iotop/ui.py", line 452, in run_iotop
return curses.wrapper(run_iotop_window, options)
File "/usr/lib/python2.6/curses/wrapper.py", line 44, in wrapper
return func(stdscr, *args, **kwds)
File "/usr/lib/pymodules/python2.6/iotop/ui.py", line 444, in run_iotop_window
process_list = ProcessList(taskstats_connection, options)
File "/usr/lib/pymodules/python2.6/iotop/data.py", line 338, in __init__
self.update_process_counts()
File "/usr/lib/pymodules/python2.6/iotop/data.py", line 394, in update_process_counts
stats = self.taskstats_connection.get_single_task_stats(thread)
File "/usr/lib/pymodules/python2.6/iotop/data.py", line 125, in get_single_task_stats
reply = self.connection.recv()
File "/usr/lib/pymodules/python2.6/iotop/netlink.py", line 229, in recv
raise err
OSError: Netlink error: 不允许的操作 (1)
这是怎么回事啊？该怎么解决啊？
还有这个pae的内核都会带来哪些问题啊？