Hello.
I have a strange error using GDM and SRSS 4.1 on SXCE build 97. I think
it is not related to SRSS, but maybe someone knows this problem.
When session language is changed in GDM (through Options menu) , during
pam auth DISPLAY variable is not set. It is critical for us, cause one
of our pam modules uses this variable to connect users and DTUs (user A
is allowed to access only from terminal A). If I login as normal os user
(for which this pam module is  sufficient, but not required), DISPLAY
variable in user session is set as it should.
When user doesn't use Options menu in Gnome, everything is OK. But if he
tries to set for example, session language to English, I get the
following errors in messages:

Feb 24 09:20:14 sr4.uic.rsu.ru gdmgreeter[19364]: [ID 702911
daemon.crit] Gtk-CRITICAL: file gtkliststore.c: line 466: assertion
`iter->stamp == GTK_LIST_STORE (tree_model)->stamp' failed
Feb 24 09:20:14 sr4.uic.rsu.ru gdmgreeter[19364]: [ID 702911
daemon.crit] Gtk-CRITICAL: file gtktreeview.c: line 11687: assertion
`path != NULL || column != NULL' failed
Feb 24 09:20:25 sr4.uic.rsu.ru gdm-binary[19254]: [ID 801593
daemon.error] pam_macaddr_auth: environment variable DISPLAY isn't set
Feb 24 09:20:26 sr4.uic.rsu.ru gdm-binary[19254]: [ID 702911
daemon.warning] WARNING: Couldn't authenticate user

I've enabled debug in gdm and saw nothing suspicious except mentioned
lines (maybe 'locale=null' is something strange...).


eb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: gdm_slave_wait_for_login: In loop
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
daemon/TimedLogin=
Feb 24 09:34:20 sr4.uic.rsu.ru last message repeated 1 time
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Looking up per display value for
security/PamStack=gdm
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/PamStack=gdm
Feb 24 09:34:20 sr4.uic.rsu.ru last message repeated 1 time
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Requesting group=security key=PamStack
locale=(null)
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/PamStack=gdm
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpLineAttached=
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpPseudoDevice=true
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Touching pseudo-device /dev/dtlocal
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Display device is /dev/dtlocal for display :33
Feb 24 09:34:20 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/PasswordRequired=false
Feb 24 09:34:20 sr4.uic.rsu.ru last message repeated 1 time
Feb 24 09:34:24 sr4.uic.rsu.ru gdm-binary[20481]: [ID 801593
daemon.error] pam_macaddr_auth: environment variable DISPLAY isn't set
Feb 24 09:34:24 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/RetryDelay=1
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] WARNING: Не удалось авторизовать пользователя
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpLineAttached=
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpPseudoDevice=true
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Touching pseudo-device /dev/dtlocal
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Display device is /dev/dtlocal for display :33
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpLineAttached=
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Attempting to parse key string:
security/UtmpPseudoDevice=true
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Touching pseudo-device /dev/dtlocal
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Display device is /dev/dtlocal for display :33
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: Writing failed session attempt utmp-wtmp record
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using username
(unknown)
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using type USER_PROCESS
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using pid 20481
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using time 1235457265
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using id  :33
Feb 24 09:34:25 sr4.uic.rsu.ru gdm-binary[20481]: [ID 702911
daemon.warning] DEBUG: utmp-wtmp: Using line
dtlocal

-- 
Best regards, 
Alexander Pyhalov, 
system administrator of Computer Center of South Federal University

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