Bug#290916: gdm always stops working altogether after a few days
(no response to xdmcp)
Vaclav Smilauer
Vaclav Smilauer <eudoxos@arcig.cz>, 290916@bugs.debian.org
Mon, 17 Jan 2005 19:43:32 +0100
Package: gdm
Version: 2.6.0.4-1
Severity: grave
Justification: renders package unusable
GDM manages a few dozens of thin clients. After a variable time (few days), it stops working - clients start X server without getting any
login screen. Gdm must be restarted (or even -KILLed) (shooting down any X sessions already running), then everything works again.
This happened about 8 times in the last month. Problem is not specific to a single client, after THE MOMENT XDMCP works nowhere. Limits
set in gdm.conf (MaxSessions=1024,DisplaysPerHost=4) can be never exceeded. I read about DNS-related problemswith XDMCP, but that does not
seem to be the problem here; the DNS server is rather reliable.
X server logs from thin clients show nothing interesting.
Relevant portion of gdm debug log (obviously 12:52:40 problem happened, 14:35 killed and started again) is below.
Help is very needed and greatly appreciated, I will be glad to send any additional information.
Regards, Vaclav Smilauer
/var/log/gdm/current:
[...]
Jan 17 12:52:26 [gdm] (child 14316) gdm_slave_alrm_handler: ag512-2.arcig:0 got ARLM signal, to ping display
Jan 17 12:52:27 [gdm] (child 16619) gdm_slave_alrm_handler: ag512-20.arcig:0 got ARLM signal, to ping display
Jan 17 12:52:28 [gdm] (child 16066) gdm_slave_alrm_handler: ag512-1.arcig:0 got ARLM signal, to ping display
Jan 17 12:52:29 [gdm] (child 18392) gdm_slave_alrm_handler: ag512-15.arcig:0 got ARLM signal, to ping display
Jan 17 12:52:30 [gdm] (child 32520) gdm_slave_alrm_handler: ag512-16.arcig:0 got ARLM signal, to ping display
Jan 17 12:52:30 [gdm] gdm_xdmcp_decode: Received opcode REQUEST from client 10.2.2.3
Jan 17 12:52:30 [gdm] gdm_xdmcp_handle_request: Got REQUEST from 10.2.2.3
Jan 17 12:52:30 [gdm] gdm_xdmcp_host_allow: client->hostname is ag202-3.arcig_
Jan 17 12:52:30 [gdm] gdm_xdmcp_handle_request: xdmcp_pending=0, MaxPending=4, xdmcp_sessions=25, MaxSessions=1024, ManufacturerID=
Jan 17 12:52:30 [gdm] gdm_xdmcp_display_dispose_check (ag202-3.arcig:0)
Jan 17 12:52:30 [gdm] gdm_display_unmanage: Stopping ag202-3.arcig:0 (slave pid: 21194)
Jan 17 12:52:40 [gdm] whack_old_slave: GOT ANOTHER SIGTERM (or it was 10 secs already), killing slave again
- Last output repeated 633 times -
Jan 17 14:35:33 [gdm] whack_old_slave: Slave crashed (signal 1), killing its children
Jan 17 14:35:33 [gdm] gdm_display_dispose: Disposing ag202-3.arcig:0
Jan 17 14:35:33 [gdm] gdm_display_unmanage: Display stopped
Jan 17 14:35:33 [gdm] gdm_auth_secure_display: Setting up access for ag202-3.arcig:0
Jan 17 14:35:33 [gdm] gdm_auth_secure_display: Setting up access
Jan 17 14:35:33 [gdm] gdm_auth_secure_display: Setting up access for ag202-3.arcig:0 - 1 entries
Jan 17 14:35:33 [gdm] gdm_xdmcp_display_alloc: display=ag202-3.arcig:0, session id=1796730052, xdmcp_pending=1
Jan 17 14:35:33 [gdm] gdm_xdmcp_send_accept: Sending ACCEPT to 10.2.2.3 with SessionID=1796730052
[...]
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.9w4l
Locale: LANG=cs_CZ.UTF-8, LC_CTYPE=cs_CZ (charmap=ISO-8859-2) (ignored: LC_ALL set to cs_CZ)
Versions of packages gdm depends on:
ii adduser 3.59 Add and remove users and groups
ii debconf 1.4.39 Debian configuration management sy
ii dpkg 1.10.24 Package maintenance system for Deb
ii flwm [x-window-manager] 1.00-5.1 Fast Light Window Manager
ii gksu 1.2.2-1 graphical frontend to su
ii gnome-session 2.8.1-3 The GNOME 2 Session Manager
ii gnome-terminal [x-termina 2.8.2-1 The GNOME 2 terminal emulator appl
ii icewm [x-window-manager] 1.2.16-1 wonderful Win95-OS/2-Motif-like wi
ii konsole [x-terminal-emula 4:3.3.0a-1 KDE X terminal emulator
ii libart-2.0-2 2.3.16-6 Library of functions for 2D graphi
ii libatk1.0-0 1.8.0-3 The ATK accessibility toolkit
ii libattr1 2.4.18-1 Extended attribute shared library
ii libaudiofile0 0.2.6-4 Open-source version of SGI's audio
ii libbonobo2-0 2.8.0-3 Bonobo CORBA interfaces library
ii libbonoboui2-0 2.8.0-2 The Bonobo UI library
ii libbz2-1.0 1.0.2-1 A high-quality block-sorting file
ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an
ii libcroco3 0.6.0-2 a generic Cascading Style Sheet (C
ii libesd0 0.2.35-2 Enlightened Sound Daemon - Shared
ii libgconf2-4 2.8.1-4 GNOME configuration database syste
ii libgcrypt11 1.2.0-10 LGPL Crypto library - runtime libr
ii libglade2-0 1:2.4.0-1 Library to load .glade files at ru
ii libglib2.0-0 2.4.7-1 The GLib library of C routines
ii libgnome-keyring0 0.4.0-2 GNOME keyring services library
ii libgnome2-0 2.8.0-6 The GNOME 2 library - runtime file
ii libgnomecanvas2-0 2.8.0-1 A powerful object-oriented display
ii libgnomeui-0 2.8.0-3 The GNOME 2 libraries (User Interf
ii libgnomevfs2-0 2.8.3-8 The GNOME virtual file-system libr
ii libgnutls11 1.0.16-9 GNU TLS library - runtime library
ii libgpg-error0 1.0-1 library for common error values an
ii libgsf-1 1.11.1-1 Structured File Library - runtime
ii libgtk2.0-0 2.4.13-1 The GTK+ graphical user interface
ii libice6 4.3.0.dfsg.1-8 Inter-Client Exchange library
ii libjpeg62 6b-9 The Independent JPEG Group's JPEG
ii liborbit2 1:2.10.2-1.1 libraries for ORBit2 - a CORBA ORB
ii libpam-modules 0.76-22 Pluggable Authentication Modules f
ii libpam-runtime 0.76-22 Runtime support for the PAM librar
ii libpam0g 0.76-22 Pluggable Authentication Modules l
ii libpango1.0-0 1.6.0-3 Layout and rendering of internatio
ii libpopt0 1.7-5 lib for parsing cmdline parameters
ii librsvg2-2 2.8.1-1 SAX-based renderer library for SVG
ii libselinux1 1.18-3 SELinux shared libraries
ii libsm6 4.3.0.dfsg.1-8 X Window System Session Management
ii libtasn1-2 0.2.10-4 Manage ASN.1 structures (runtime)
ii libwrap0 7.6.dbs-6 Wietse Venema's TCP wrappers libra
ii libx11-6 4.3.0.dfsg.1-8 X Window System protocol client li
ii libxext6 4.3.0.dfsg.1-8 X Window System miscellaneous exte
ii libxml2 2.6.11-5 GNOME XML library
ii metacity [x-window-manage 1:2.8.6-1 A lightweight GTK2 based Window Ma
ii twm [x-window-manager] 4.3.0.dfsg.1-8 Tab window manager
ii xbase-clients 4.3.0.dfsg.1-8 miscellaneous X clients
ii xlibs 4.3.0.dfsg.1-8 X Window System client libraries m
ii xterm [x-terminal-emulato 4.3.0.dfsg.1-8 X terminal emulator
ii zlib1g 1:1.2.2-3 compression library - runtime
-- debconf information:
gdm/daemon_name: /usr/bin/gdm
* shared/default-x-display-manager: gdm