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Bug 84026

Summary: gdm does not update /var/run/utmp correctly
Product: [Retired] Red Hat Linux Reporter: Norman Gaywood <ngaywood>
Component: gdmAssignee: Ray Strode [halfline] <rstrode>
Status: CLOSED DUPLICATE QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: 8.0CC: jirka
Target Milestone: ---Keywords: Triaged
Target Release: ---   
Hardware: i386   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2004-11-10 20:44:48 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 79579, 100644    

Description Norman Gaywood 2003-02-11 02:59:18 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20021003

Description of problem:
gdm does not update /var/run/utmp correctly when logging in via xdmcp. The first
user seems to be added correctly but all subsequent logins replace the previous
login. So 'who/w/finger' only ever shows one X terminal style login even though
there are many more.

wtmp seems to be correct. That is, last correctly shows that last and current

The only changes I have made to the gdm setup from a default install is to the
gdm.conf file. Here is the diff between my gdm.conf and the one supplied in RH 8.0

diff gdm.conf gdm.conf-redhat
< Enable=true
> Enable=false
< MaxPending=10
< MaxPendingIndirect=10
< MaxSessions=80
< MaxWait=30
< MaxWaitIndirect=30
> MaxPending=4
> MaxPendingIndirect=4
> MaxSessions=16
> MaxWait=15
> MaxWaitIndirect=15
< #0=Standard
> 0=Standard

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Make changes to gdm.conf to allow xdmcp logins
2. restart gdm
3. start logins from 2 or more xterminals via xdmcp and observe the output of

Actual Results:  Only the last xdmcp login is displayed with who/w/finger even
though the last command shows more than one "still logged in".

Expected Results:  All users should be in who/w/finger output

Additional info:

Comment 1 George Lebl 2003-07-23 19:20:14 UTC
Note that this is the way that the redhat package handles the Pre/PostSession
scripts.  upstream will handle this correctly.

Comment 2 George Lebl 2003-08-04 19:01:03 UTC
Hmmm, apparently recent RPMS do this correctly, but I think if you upgrade from
a version that did it wrongly (don't know which was the last version that did
that) you might still get wrong links in the PreSession/PostSession dirs.  See
bug #101105 since that's related (well really the same exact problem I think).

Comment 3 Ray Strode [halfline] 2004-11-10 20:44:48 UTC

*** This bug has been marked as a duplicate of 101105 ***