Bugzilla Bug 266236

After some time X just exits and I am at the login-screen again.
The Xorg.log says:
Backtrace:
0: /usr/bin/X(xorg_backtrace+0x26) [0x4e7e16]
1: /usr/bin/X(xf86SigHandler+0x39) [0x493ef9]
2: /lib/libc.so.6 [0x7f72e64252b0]
3: /usr/bin/X(miPaintWindow+0x198) [0x4c95f8]
4: /usr/bin/X(miHandleValidateExposures+0x84) [0x4e04b4]
5: /usr/bin/X(UnmapWindow+0x200) [0x4353d0]
6: /usr/bin/X(compFreeClientWindow+0x236) [0x4f8676]
7: /usr/bin/X [0x4f5bf9]
8: /usr/bin/X(FreeResource+0x133) [0x432e13]
9: /usr/bin/X(compUnredirectWindow+0x63) [0x4f8273]
10: /usr/bin/X [0x4f6636]
11: /usr/bin/X [0x4e0a3f]
12: /usr/bin/X [0x4e094c]
13: /usr/bin/X [0x4e094c]
14: /usr/bin/X(miChangeSaveUnder+0x50) [0x4e0ad0]
15: /usr/bin/X(miSetShape+0x1b8) [0x4df4d8]
16: /usr/bin/X [0x4fd7d2]
17: /usr/bin/X [0x4fdb71]
18: /usr/bin/X(Dispatch+0x364) [0x449914]
19: /usr/bin/X(main+0x445) [0x4305a5]
20: /lib/libc.so.6(__libc_start_main+0xe6) [0x7f72e6411486]
21: /usr/bin/X [0x42f9a9]

Fatal server error:
Caught signal 11.  Server aborting


Reproducible: Always

Steps to Reproduce:
1. Build new Xorg and use it

Actual Results:  
It segfaults.

Expected Results:  
It should just work :-/

I upgraded and used the same config (only the mouse-config was updated to no
longer use the name but the path...)

Portage 2.1.6.7 (default/linux/amd64/2008.0/desktop, gcc-4.3.2,
glibc-2.8_p20080602-r1, 2.6.29-gentoo-r1 x86_64)
=================================================================
System uname:
Linux-2.6.29-gentoo-r1-x86_64-Dual_Core_AMD_Opteron-tm-_Processor_180-with-glibc2.2.5
Timestamp of tree: Mon, 13 Apr 2009 17:15:01 +0000
app-shells/bash:     3.2_p39
dev-java/java-config: 2.1.7
dev-lang/python:     2.5.2-r7
dev-util/cmake:      2.6.2-r1
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.63
sys-devel/automake:  1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2
sys-devel/binutils:  2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.27-r2
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=opteron -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config
/usr/kde/3.5/shutdown /usr/share/config /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/
/etc/fonts/fonts.conf /etc/gconf /etc/php/apache2-php5/ext-active/
/etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild
/etc/splash /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d
/etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-march=opteron -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms
strict unmerge-orphans userfetch userpriv usersandbox"
GENTOO_MIRRORS="ftp://ftp.join.uni-muenster.de/pub/linux/distributions/gentoo
http://mirror.leaseweb.com/gentoo/
http://ftp.uni-erlangen.de/pub/mirrors/gentoo
http://mirror.switch.ch/ftp/mirror/gentoo/
http://mirrors.sec.informatik.tu-darmstadt.de/gentoo/"
LANG="de_DE.UTF-8"
LC_ALL="de_DE.UTF-8"
LDFLAGS="-Wl,-O1"
LINGUAS="de"
MAKEOPTS="-j1"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --stats --timeout=180 --exclude=/distfiles
--exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/berkano
/usr/portage/local/layman/verlihub /usr/portage/local/local"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac accessibility acl acpi aften alsa amd64 apache2
arts audiofile automount bash-completion berkdb bluetooth branding bzip2 cairo
caps cdparanoia cdr chroot cli cracklib crypt css cups curl dbus dri dvb dvd
dvdr dvdread encode evo exif fam ffmpeg firefox flac foomaticdb fortran ftp
fuse gcj gd gdbm gif gimp glib gmp gpm gs hal hbci iconv idea idn imagemagick
inotify isdnlog java jpeg kde kdeenablefinal kdeprefix latex lcms libclamav
libnotify lm_sensors logitech-mouse logrotate mad midi mjpeg mmx mmxext mng mp3
mp4 mpeg mudflap multilib mysql ncurses nls no-htdocs nptl nptlonly nsplugin
nvidia ogg openal opengl openmp oss pam pcre pdf perl php png ppds pppd python
qt qt3 qt3support qt4 quicktime readline reflection rtc rtsp samba sdl session
smp spell spl sse sse2 sse3 ssl startup-notification svg sysfs sysvipc tcpd
tetex theora threads tiff tools truetype type1 unicode usb v4l v4l2 vcd vnc
vorbis webkit wifi x264 xcb xcomposite xine xml xml2 xorg xpm xulrunner xv xvid
xvmc zlib" ALSA_CARDS="intel8x0" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix
dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter
mmap_emul mulaw multi null plug rate route share shm softvol"
APACHE2_MODULES="actions alias auth_basic auth_digest authn_anon authn_dbd
authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile
authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock dbd
deflate dir disk_cache env expires ext_filter file_cache filter headers ident
imagemap include info log_config logio mem_cache mime mime_magic negotiation
proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so
speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc"
INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz
cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de"
USERLAND="GNU" VIDEO_CARDS="nvidia nv"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK,
PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

What I figured out so far:
It happens randomly but it can only take a few minutes.
It happens when a window should open up. (It cant connect to the server as
stated in the user xsession-errors and all other a killed because they lost the
x-server.)

"window should open up" is also the case for menues btw.
Without doing anything, it runs without a problem for hours. (no failure at
all)

Another, though similar, backtrace:
0: /usr/bin/X(xorg_backtrace+0x26) [0x4e7e16]
1: /usr/bin/X(xf86SigHandler+0x39) [0x493ef9]
2: /lib/libc.so.6 [0x7f030fa322b0]
3: /usr/bin/X(miHandleValidateExposures+0x6c) [0x4e049c]
4: /usr/bin/X(UnmapWindow+0x200) [0x4353d0]
5: /usr/bin/X(compFreeClientWindow+0x236) [0x4f8676]
6: /usr/bin/X [0x4f5bf9]
7: /usr/bin/X(FreeResource+0x133) [0x432e13]
8: /usr/bin/X(compUnredirectWindow+0x63) [0x4f8273]
9: /usr/bin/X [0x4f6636]
10: /usr/bin/X [0x4e0a3f]
11: /usr/bin/X [0x4e094c]
12: /usr/bin/X [0x4e094c]
13: /usr/bin/X(miChangeSaveUnder+0x50) [0x4e0ad0]
14: /usr/bin/X(MapWindow+0x317) [0x435a37]
15: /usr/bin/X(ProcMapWindow+0x46) [0x4490e6]
16: /usr/bin/X(Dispatch+0x364) [0x449914]
17: /usr/bin/X(main+0x445) [0x4305a5]
18: /lib/libc.so.6(__libc_start_main+0xe6) [0x7f030fa1e486]
19: /usr/bin/X [0x42f9a9]

Fatal server error:
Caught signal 11.  Server aborting

The xorg-server should be masked untill this is resolved. It is definitly
unusable!
It may be something like bug 238634.

Please attach a Xorg log file that explains what drivers are used. Also explain
whether you did or did not rebuild x11-drivers/*. Then reopen this bug report. 

Also, it isn't critical or a blocker just because you happen to experience it.

It seems there is a problem with nvidia.
option "Backingstore" "false" is needed.

Please see bugs:

https://fcp.surfsite.org/modules/newbb/viewtopic.php?topic_id=65359&forum=12&post_id=311464
and
http://bbs.archlinux.org/viewtopic.php?pid=463677

I am also having similar crashes. I can't produce them very reproducibly (they
occur sporadically). I have noticed that trying to open openoffice makes them
much more likely to occur (although I can open openoffice several times without
it occurring). 

Here is my backtrace: 

Backtrace:
0: /usr/bin/X(xorg_backtrace+0x26) [0x4e7e16]
1: /usr/bin/X(xf86SigHandler+0x39) [0x487c79]
2: /lib/libc.so.6 [0x34b4c311d0]
3: /usr/bin/X(XkbStringText+0x1c) [0x5642dc]
4: /usr/bin/X(XkbWriteXKBGeometry+0x17c) [0x55637c]
5: /usr/bin/X(XkbWriteXKBKeymapForNames+0x69b) [0x555a9b]
6: /usr/bin/X(XkbDDXLoadKeymapByNames+0x182) [0x55f522]
7: /usr/bin/X(ProcXkbGetKbdByName+0x36d) [0x53bffd]
8: /usr/bin/X(Dispatch+0x364) [0x449914]
9: /usr/bin/X(main+0x445) [0x4305a5]
10: /lib/libc.so.6(__libc_start_main+0xf4) [0x34b4c1e4a4]
11: /usr/bin/X [0x42f9a9]


Notes: I do have an nvidia card, but did not have backstore enabled. I think
this started when I moved to 1.5, but at one point I also updated my kernel and
disabled acpi (this is not a laptop). I am on AMD64. I am attaching a full log
of a crash (I plug/unplug my keyboard and mouse frequently which is the cause
of the many messages about them coming back online) and my Xorg.conf.

Created an attachment (id=191702) [details]
Xorg log file from crash

Created an attachment (id=191704) [details]
xorg.conf file that led to a crash

Also, I have emerge all my x11-drivers (x11-drivers/xf86-input-evdev-2.1.3 and
x11-drivers/nvidia-drivers-180.29) since my last emerge of xorg-server
(x11-base/xorg-server-1.5.3-r5). It does appear that multiple people are
experiencing this bug so maybe it should be considered critical/blocking... it
certainly outweighs any benefits from this upgrade.