gnu linux update question

[Patrick O'Callaghan]

On Wed, 2011-06-29 at 09:15 -0400, Genes MailLists wrote:
> On 06/29/2011 06:01 AM, Bryn M. Reeves wrote:
> > print "pid: %s" % pid # add this line
> 
>   Great idea:
> 
>   ./needs-restarting
> pid: 1
> Traceback (most recent call last):
>   File "./needs-restarting", line 138, in <module>
>     sys.exit(main(sys.argv))
>   File "./needs-restarting", line 118, in main
>     for fn in get_open_files(pid):
>   File "./needs-restarting", line 85, in get_open_files
>     for line in maps.readlines():
> IOError: [Errno 13] Permission denied
> 
> 
> 
>   From this we see:
> 
> 
> $ ls -l /proc/1/smaps
> 0 -r--r--r--. 1 root root 0 Jun 28 13:25 /proc/1/smaps
> 
> $ cat /proc/1/smaps
> cat: /proc/1/smaps: Permission denied
> 
> So that is the source of the problem - tho it probably should not give up.

But the mode bits allow reading, and on my system "cat /proc/1/smaps"
succeeds (though it's empty). I don't think those files have extended
attributes so that wouldn't be it.

Curiouser and curiouser, as Alice said.

poc