Unusual sudo / w behaviour - 0 users?

Paul Fraser pfraser at gmail.com
Sun Jul 22 09:45:08 UTC 2007

Hi Tom (and ports list by CC),

After an upgrade to sudo v1.6.9 on my 6-STABLE workstation, I've
noticed some interesting behaviour with regards to interaction between
sudo and w.

Check the output below for an example.

[pfraser at odyssey ~]$ sudo -V
Sudo version 1.6.9
[pfraser at odyssey ~]$ w
 7:42PM  up 8 days,  7:46, 1 user, load averages: 0.11, 0.10, 0.15
USER             TTY      FROM              LOGIN@  IDLE WHAT
pfraser          p0       core-server01     7:38PM     - w
[pfraser at odyssey ~]$ sudo -s
Last login: Sun Jul 22 19:36:22 on ttyp1
[root at odyssey ~]# w
 7:42PM  up 8 days,  7:46, 0 users, load averages: 0.10, 0.09, 0.15
USER             TTY      FROM              LOGIN@  IDLE WHAT
[root at odyssey ~]#

Note there is now no active session listed? If I then drop out of the
sudo session, the problem persists.

[root at odyssey ~]# exit
[pfraser at odyssey ~]$ w
 7:44PM  up 8 days,  7:47, 0 users, load averages: 0.27, 0.15, 0.17
USER             TTY      FROM              LOGIN@  IDLE WHAT
[pfraser at odyssey ~]$

I'm afraid I'm not familiar enough with the inner workings of all the
related systems and can't be of much more assistance (at least
initially), but I'm quite welcome to perform any testing you require.
You may just need to hold my hand a little bit!


Paul Fraser // Independent Technical Consultant // Ph: +61 405 341 905
// furyc0de.net

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