Bug#686992: gnome-settings-daemon: _XRead: Assertion `!xcb_xlib_too_much_data_requested' failed
Jan Echternach
jan at goneko.de
Fri Sep 7 23:43:18 UTC 2012
Package: gnome-settings-daemon
Version: 3.4.2-4+b1
Severity: important
gdm3 + xfce4
After booting, the gdm3 login screen is black with a small grey login window,
but I can login.
After logging out, or after /etc/init.d/gdm3 stop && /etc/init.d/gdm3 start, I
usually get the "Oh No! Something has gone wrong" screen. Login is not
possible. (However, sometimes I do get the black and grey login screen again.
It feels a bit like a race condition.)
I found this assertion failure in /var/log/gdm3/:0-greeter.log:
[xcb] Too much data requested from _XRead
[xcb] This is most likely caused by a broken X extension library
[xcb] Aborting, sorry about that.
gnome-settings-daemon: ../../src/xcb_io.c:735: _XRead: Assertion `!xcb_xlib_too_much_data_requested' failed.
and was able to get a core dump:
Core was generated by `/usr/lib/gnome-settings-daemon/gnome-settings-daemon.bin'.
Program terminated with signal 6, Aborted.
#0 0xb7718424 in __kernel_vsyscall ()
(gdb) where
#0 0xb7718424 in __kernel_vsyscall ()
#1 0xb6e03941 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2 0xb6e06d72 in *__GI_abort () at abort.c:92
#3 0xb6dfcb58 in *__GI___assert_fail (
assertion=assertion at entry=0xb6d207c8 "!xcb_xlib_too_much_data_requested",
file=file at entry=0xb6d207ea "../../src/xcb_io.c", line=line at entry=735,
function=function at entry=0xb6d20910 "_XRead") at assert.c:81
#4 0xb6caada3 in _XRead (dpy=dpy at entry=0x834f610, data=data at entry=0x8439be0 "", size=size at entry=64)
at ../../src/xcb_io.c:734
#5 0xb6a8f56c in _XIPassiveGrabDevice (dpy=dpy at entry=0x834f610, deviceid=138375800, deviceid at entry=1,
grabtype=grabtype at entry=1, detail=detail at entry=200, grab_window=grab_window at entry=594,
cursor=cursor at entry=0, grab_mode=grab_mode at entry=1, paired_device_mode=paired_device_mode at entry=1,
owner_events=owner_events at entry=0, num_modifiers=num_modifiers at entry=8,
modifiers_inout=modifiers_inout at entry=0x8405328,
mask=<error reading variable: Unhandled dwarf expression opcode 0xfa>,
mask=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ../../src/XIPassiveGrab.c:89
#6 0xb6a8f6c9 in XIGrabKeycode (dpy=0x834f610, deviceid=1, keycode=200, grab_window=594, grab_mode=1,
paired_device_mode=1, owner_events=0, mask=0xbff127c4, num_modifiers=8, modifiers_inout=0x8405328)
at ../../src/XIPassiveGrab.c:122
#7 0xb5d55f4b in grab_key_unsafe () from /usr/lib/gnome-settings-daemon-3.0/liborientation.so
#8 0xaf3e70a5 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libmedia-keys.so
#9 0xaf3e7615 in ?? () from /usr/lib/gnome-settings-daemon-3.0/libmedia-keys.so
#10 0xb6f970f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb6f99633 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb6f999d0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb6f99e2b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#14 0xb738769d in gtk_main () from /usr/lib/i386-linux-gnu/libgtk-3.so.0
#15 0x0804b2ac in main ()
Ubuntu bug #1020312 may be a duplicate of this one. The stack trace in that
bug looks similar, but it's not identical.
-- System Information:
Debian Release: 6.0.5
APT prefers stable
APT policy: (800, 'stable'), (600, 'testing'), (560, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 3.2.0-3-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages gnome-settings-daemon depends on:
ii dconf-gsettings-back 0.12.1-2 simple configuration storage syste
ii dpkg 1.15.8.12 Debian package management system
ii gsettings-desktop-sc 3.4.2-1 GSettings deskop-wide schemas
ii libatk1.0-0 2.4.0-2 ATK accessibility toolkit
ii libc6 2.13-35 Embedded GNU C Library: Shared lib
ii libcairo-gobject2 1.12.2-2 The Cairo 2D vector graphics libra
ii libcairo2 1.12.2-2 The Cairo 2D vector graphics libra
ii libcanberra-gtk3-0 0.28-4 GTK+ 3.0 helper for playing widget
ii libcanberra0 0.24-1 a simple abstract interface for pl
ii libcolord1 0.1.21-1 system service to manage device co
ii libcomerr2 1.41.12-4stable1 common error description library
ii libcups2 1.4.4-7+squeeze1 Common UNIX Printing System(tm) -
ii libdbus-glib-1-2 0.100-1 simple interprocess messaging syst
ii libfontconfig1 2.9.0-7 generic font configuration library
ii libgcrypt11 1.5.0-3 LGPL Crypto library - runtime libr
ii libgdk-pixbuf2.0-0 2.26.1-1 GDK Pixbuf library
ii libglib2.0-0 2.32.3-1 GLib library of C routines
ii libgnome-desktop-3-2 3.4.2-1 Utility library for loading .deskt
ii libgnomekbd7 3.4.0.2-1 GNOME library to manage keyboard c
ii libgnutls26 2.12.20-1 GNU TLS library - runtime library
ii libgssapi-krb5-2 1.10.1+dfsg-2 MIT Kerberos runtime libraries - k
ii libgtk-3-0 3.4.2-3 GTK+ graphical user interface libr
ii libgudev-1.0-0 175-7 GObject-based wrapper library for
ii libk5crypto3 1.10.1+dfsg-2 MIT Kerberos runtime libraries - C
ii libkrb5-3 1.10.1+dfsg-2 MIT Kerberos runtime libraries
ii liblcms2-2 2.2+git20110628-2.2 Little CMS 2 color management libr
ii libnotify4 0.7.5-1 sends desktop notifications to a n
ii libnspr4-0d 4.8.6-1 NetScape Portable Runtime Library
ii libnss3-1d 3.12.8-1+squeeze5 Network Security Service libraries
ii libpackagekit-glib2- 0.7.5-2 Library for accessing PackageKit u
ii libpango1.0-0 1.30.0-1 Layout and rendering of internatio
ii libpolkit-gobject-1- 0.105-1 PolicyKit Authorization API
ii libpulse-mainloop-gl 2.0-6 PulseAudio client libraries (glib
ii libpulse0 2.0-6 PulseAudio client libraries
ii libsqlite3-0 3.7.3-1 SQLite 3 shared library
ii libupower-glib1 0.9.17-1 abstraction for power management -
ii libwacom2 0.5-1 Wacom model feature query library
ii libx11-6 2:1.5.0-1 X11 client-side library
ii libxfixes3 1:5.0-4 X11 miscellaneous 'fixes' extensio
ii libxi6 2:1.6.1-1 X11 Input extension library
ii libxklavier16 5.2.1-1 X Keyboard Extension high-level AP
ii libxtst6 2:1.2.1-1 X11 Testing -- Record extension li
ii nautilus-data 3.4.2-1+build1 data files for nautilus
ii zlib1g 1:1.2.7.dfsg-13 compression library - runtime
Versions of packages gnome-settings-daemon recommends:
pn pulseaudio <none> (no description available)
Versions of packages gnome-settings-daemon suggests:
ii fvwm [x-window-manager] 1:2.5.30.ds-1 F(?) Virtual Window Manager
ii gnome-screensaver 3.4.1-1 GNOME screen saver and locker
ii metacity [x-window-manager 1:2.34.3-3 lightweight GTK+ window manager
ii twm [x-window-manager] 1:1.0.4-2 Tab window manager
ii x11-xserver-utils 7.5+3 X server utilities
ii xfwm4 [x-window-manager] 4.8.3-1 window manager of the Xfce project
-- no debconf information
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