Bug#365630: segfault in gdmgreeter and gdmlogin
Emmanuel Fuste
emmanuel.fuste at laposte.net
Mon May 1 16:17:13 UTC 2006
Package: gdm
Version: 2.14.4-1
Severity: critical
Justification: breaks unrelated software
Since the X11R7 transition, gdm fail to start, xserver start is killed
restart etc.. in an endless loop.
The latest gdm (2.14.4-1) reach unstable, but the problem is the same.
gdm is very hard to debug, enabling the debug flag in the default gdm
config file show nothing more than gdmgreeter (or gdmlogin, I tried the
two) exiting for no real reason after getting all the conf keys from the
main gdm process.
I tried to strace gdm with "strace -o/tmp/trace -ff -vv /usr/sbin/gdm"
This is the end of the file corresponding to gdmgreeter:
read(4, 0xbf8c4000, 32) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN, revents=POLLIN}], 1, -1) = 1
read(4, "\1\0\34\0\0\0\0\0\1\0\0\0\4\0\0\0\30\1\0\0\0\0\0\0\354"..., 32) = 32
write(3, "+\0\1\0", 4) = 4
read(3, 0xbf8c40c0, 32) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN, revents=POLLIN}], 1, -1) = 1
read(3, "\1\0v\1\0\0\0\0\1\0\0\0\4\0\0\0\30\1\0\0\375\377\377\377"..., 32) = 32
write(4, "+\0\1\0", 4) = 4
read(4, 0xbf8c40e0, 32) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN, revents=POLLIN}], 1, -1) = 1
read(4, "\1\0\35\0\0\0\0\0\1\0\0\0\4\0\0\0\30\1\0\0\0\0\0\0\354"..., 32) = 32
write(4, "$\0\1\0\f\0\4\0G\0@\0@\0@\0\0\0\0\0%\0\1\0+\0\1\0", 28) = 28
read(4, 0xbf8c3fd0, 32) = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=4, events=POLLIN, revents=POLLIN}], 1, -1) = 1
read(4, "\1\0!\0\0\0\0\0\1\0\0\0\4\0\0\0\0\0\0\0X\223\316\277\354"..., 32) = 32
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
fd 4 is the unix domain socket of the X server :
socket(PF_FILE, SOCK_STREAM, 0) = 4
uname({sysname="Linux", nodename="rafale", release="2.6.16", version="#1 SMP Tue Mar 28 14:37:11 CEST 2006", machine="i586"}) = 0
uname({sysname="Linux", nodename="rafale", release="2.6.16", version="#1 SMP Tue Mar 28 14:37:11 CEST 2006", machine="i586"}) = 0
connect(4, {sa_family=AF_FILE, path="/tmp/.X11-unix/X0"}, 19) = 0
uname({sysname="Linux", nodename="rafale", release="2.6.16", version="#1 SMP Tue Mar 28 14:37:11 CEST 2006", machine="i586"}) = 0
So, sice X11R7, gdmgreeter/gdmlogin segfault after having read back
somme data from the X server.
(I've go the same segfault with the previous debian gdm package).
Emmanuel.
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i586)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages gdm depends on:
ii adduser 3.87 Add and remove users and groups
ii debconf [debconf-2.0] 1.5.0 Debian configuration management sy
ii fvwm [x-window-manager] 1:2.5.16-2 F(?) Virtual Window Manager, versi
ii gksu 1.3.7-1 graphical frontend to su
ii gnome-session 2.14.0-2 The GNOME 2 Session Manager
ii gnome-terminal [x-terminal 2.14.1-1 The GNOME 2 terminal emulator appl
ii libart-2.0-2 2.3.17-1 Library of functions for 2D graphi
ii libatk1.0-0 1.11.4-1 The ATK accessibility toolkit
ii libattr1 2.4.32-1 Extended attribute shared library
ii libc6 2.3.6-7 GNU C Library: Shared libraries
ii libcairo2 1.0.4-2 The Cairo 2D vector graphics libra
ii libdmx1 1:1.0.1-3 X11 Distributed Multihead extensio
ii libfontconfig1 2.3.2-5.1 generic font configuration library
ii libglade2-0 1:2.5.1-2 library to load .glade files at ru
ii libglib2.0-0 2.10.2-2 The GLib library of C routines
ii libgnomecanvas2-0 2.14.0-2 A powerful object-oriented display
ii libgtk2.0-0 2.8.17-2 The GTK+ graphical user interface
ii libpam-modules 0.79-3.1 Pluggable Authentication Modules f
ii libpam-runtime 0.79-3.1 Runtime support for the PAM librar
ii libpam0g 0.79-3.1 Pluggable Authentication Modules l
ii libpango1.0-0 1.12.1-2 Layout and rendering of internatio
ii libpopt0 1.7-5 lib for parsing cmdline parameters
ii librsvg2-2 2.14.3-2 SAX-based renderer library for SVG
ii librsvg2-common 2.14.3-2 SAX-based renderer library for SVG
ii libselinux1 1.30-1 SELinux shared libraries
ii libwrap0 7.6.dbs-9 Wietse Venema's TCP wrappers libra
ii libx11-6 2:1.0.0-6 X11 client-side library
ii libxau6 1:1.0.0-3 X11 authorisation library
ii libxcursor1 1.1.5.2-5 X cursor management library
ii libxdmcp6 1:1.0.0-4 X11 Display Manager Control Protoc
ii libxext6 1:1.0.0-4 X11 miscellaneous extension librar
ii libxfixes3 1:3.0.1.2-4 X11 miscellaneous 'fixes' extensio
ii libxi6 1:1.0.0-5 X11 Input extension library
ii libxinerama1 1:1.0.1-4 X11 Xinerama extension library
ii libxml2 2.6.24.dfsg-1 GNOME XML library
ii libxrandr2 2:1.1.0.2-4 X11 RandR extension library
ii libxrender1 1:0.9.0.2-4 X Rendering Extension client libra
ii lsb-base 3.1-5 Linux Standard Base 3.1 init scrip
ii metacity [x-window-manager 1:2.14.1-1 A lightweight GTK2 based Window Ma
ii xbase-clients 1:7.0.0-5 miscellaneous X clients
ii xterm [x-terminal-emulator 210-3 X terminal emulator
ii zlib1g 1:1.2.3-11 compression library - runtime
Versions of packages gdm recommends:
ii dialog 1.0-20060221-1 Displays user-friendly dialog boxe
ii gdm-themes 0.5 Themes for the GNOME Display Manag
ii whiptail 0.52.2-4 Displays user-friendly dialog boxe
ii zenity 2.14.1-1 Display graphical dialog boxes fro
-- debconf information excluded
More information about the Pkg-gnome-maintainers
mailing list