Bug 504536 – x11-misc/lightdm: broken pam.d files hard code pam_systemd.so

• Product: Gentoo Linux
• Status: RESOLVED OBSOLETE

[Description Thibaud CANALE 2014-03-14 00:43:59 UTC]

Created attachment 372624 [details]
emerge --info

Hello,

(Bug with same behavior https://bugs.gentoo.org/show_bug.cgi?id=504350)

When using x11-misc/lightdm, 2 messages are displayed in /var/log/auth.log, log about auth and authpriv, about lightdm and pam_systemd:

* lightdm: PAM unable to dlopen(/lib64/security/pam_systemd.so): /lib64/security/pam_systemd.so: cannot open shared object file: No such file or directory
* lightdm: PAM adding faulty module: /lib64/security/pam_systemd.so

About x11-misc/lightdm:
Installed versions:  1.8.5^t(03:40:01 PM 03/10/2014)(gtk introspection -kde -qt4 -razor)

In fact, those message are writing twice every time, because in /etc/pam.d/ directory, there is two files with “session   optional pam_systemd.so”, /etc/pam.d/lightdm and /etc/pam.d/lightdm-greeter.

Reproducible: Always

Steps to Reproduce:
1. Install x11-misc/lightdm without systemd.
2. Watch logs.

Actual Results:
Logging those message, for no good reasons (I don't want systemd on my computer).

Currently, I just put a '#' for commenting those lines, but I don't know if it will break something later.

[Comment 1 Sasha Medvedev 2015-01-17 07:41:16 UTC]

(In reply to Thibaud "thican" CANALE from comment #0)
> Currently, I just put a '#' for commenting those lines, but I don't know if
> it will break something later.

Thibaud, Did you manage to get rid of this messages? I commented systemd lines in /etc/pam.d/lightdm and /etc/pam.d/lightdm-greeter but this doesn't help.

[Comment 2 Thibaud CANALE 2015-01-17 11:09:18 UTC]

(In reply to Sasha Medvedev from comment #1)
> (In reply to Thibaud "thican" CANALE from comment #0)
>> Currently, I just put a '#' for commenting those lines, but I don't know if
>> it will break something later.
> 
> Thibaud, Did you manage to get rid of this messages? I commented systemd
> lines in /etc/pam.d/lightdm and /etc/pam.d/lightdm-greeter but this doesn't
> help.

Yes I did, just by commenting those lines, nothing more, I thing. Sorry, I can't help you more, maybe try this to seek other same lines:
grep -RFe 'pam_systemd.so' /etc/pam.d/

Have a good day.

[Comment 3 SpanKY 2015-05-21 03:07:28 UTC]

lightdm's pam files are broken.  it needs to put a '-' at the start of the systemd module lines.

[Comment 4 Thibaud CANALE 2015-05-21 13:57:15 UTC]

Hello,

(In reply to SpanKY from comment #3)
> lightdm's pam files are broken.  it needs to put a '-' at the start of the
> systemd module lines.

I think this bug may be considered obsolete.

I am currently using version x11-misc/lightdm-1.13.2, and in the pam files, we have this (lightdm & lightdm-greeter):
----- BEGIN -----
# File autogenerated by pamd_mimic in pam eclass

auth		include		system-local-login
account		include		system-local-login
password	include		system-local-login
session		include		system-local-login
---- END ----

There is no more 'pam_systemd.so' module lines on my system.

Maybe in the current stable version 1.10.3, this bug may still occur.
Otherwise, I think we can close this ticket.

Thanks for support.