Hi, I see for some while xdm dump files in /var/dumps/. The stacktraces point to glibc bug: # emerge -pv xdm [ebuild R ] x11-apps/xdm-1.1.9 USE="pam -debug -ipv6" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB I suspect this could related to my system being "blocked" on shutdown with cupsd not willing to exit correctly. xdm session is up all the time and then after some minutes of timeouts all apps get killed. Does anybody see a reason why xdm would crash due to signal 11 or so? Alternatively, I see xdm dying when I startup /etc/init.d/gpm and try to login through xdm. Yes, X has enabled mouse through HAL autodiscovery. The stacktrace is maybe more confirming this theory. I will attach the stacktrace.
Created attachment 205582 [details] xdm-crash-glibc.txt # emerge --info Portage 2.1.6.13 (default/linux/x86/2008.0/desktop, gcc-4.4.1, glibc-2.10.1-r0, 2.6.30.6 i686) ================================================================= System uname: Linux-2.6.30.6-i686-Mobile_Intel-R-_Pentium-R-_4_-_M_CPU_1.80GHz-with-gentoo-2.0.1 Timestamp of tree: Tue, 29 Sep 2009 12:20:01 +0000 distcc 3.1 i686-pc-linux-gnu [disabled] app-shells/bash: 4.0_p33 dev-java/java-config: 1.3.7-r1, 2.1.9-r1 dev-lang/python: 2.5.4-r3, 2.6.2-r1, 3.1.1 dev-python/pycrypto: 2.0.1-r8 dev-util/cmake: 2.6.4-r2 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.4.3-r3 sys-apps/sandbox: 2.1 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2, 1.11 sys-devel/binutils: 2.19.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="x86 ~x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4 -mmmx -msse -msse2 -pipe -fno-strict-aliasing -ggdb" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /var/bind /var/lib/hsqldb /var/qmail/alias /var/qmail/control /var/vpopmail/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-O2 -march=pentium4 -mmmx -msse -msse2 -pipe -fno-strict-aliasing -ggdb" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks fixpackages metadata-transfer nostrip parallel-fetch protect-owned sandbox sfperms splitdebug s trict unmerge-orphans userfetch" GENTOO_MIRRORS="http://gentoo.mirror.web4u.cz" LDFLAGS="-Wl,-O1" LINGUAS="en cs cz" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --sta ts --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage/layman/science /usr/local/portage/layman/sunrise /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="7zip R X Xaw3d a52 aac aalib ace acl acpi alsa amr amrnb amrwb apache audacious audiofile bash-completion bcma th berkdb blas bluetooth boost branding bzip2 cairo cblas cddb cdparanoia cdr clamav cli colordiff compress cpio cr acklib crypt cscope css ctype cups curl curlwrappers cxx dbi dbus dga dia directfb djbfft dri dts dv dvb dvd dvdr d vdread eds emacs emboss emf enblend encode enscript exif expat faad fam fame fat fbcon ffmpeg fftw firefox flac fla sh foomaticdb fortran fpx ftp gcj gd gdbm ggi gif gimp gimpprint glibc-compat20 glibc-omitfp glut gmp gnuplot gnutl s gpgme gphoto2 gpm graphviz gs gsl gsm gstreamer gtk gtkhtml hal hdf hdf5 hp2xx i8x0 icc iconv icu id3 ieee1394 if c imagemagick imlib inifile innodb isdnlog ithreads jack java javascript jbig jce jikes jpeg jpeg2k kdtree kerberos lame lapack laptop lcms leim libcaca libedit libnotify libwww live lzo lzw mad maildir matroska mhash mikmod mime ming mjpeg mmap mmx mng mod_python modperl modplug modules motif mozilla moznoirc mp2 mp3 mp4 mpeg mpi mpi_njtree m pich2 mplayer mudflap mule musepack mxdatetime mysql mysqli ncurses netcdf netpbm network nls nntp nptl nptlonly ns plugin ntfs numeric ogg opengl openmp openssl pam pango pcmcia pcntl pcre pdf perl plotutils plugin png pnm postpro c postscript ppds pppd procmail pymol python qt3 qt3support qt4 quicktime rar raw readline recode reflection reiser fs rpm samba sasl scanner scp seamonkey server session sftp sift slp smime sndfile soap sockets spell spl sqlite sr t sse sse2 ssl startup-notification subtitles subversion svg svgz sysfs sysvipc t1lib tcl tcpd tetex theora threads thunar tidy tiff tk transcode truetype unicode urandom usb userlocales utils uuencode v4l v4l2 vcd vhook vim-synta x vim-with-x vorbis wifi win32codecs wmf wxwindows x264 x86 xanim xcf xfs xft xinerama xinetd xml xorg xpm xsl xslt xulrunner xv xvid xvmc yv12 zip zlib" ALSA_CARDS="intel-8x0m" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare d snoop 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_defau lt authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config mem_cache m ime mime_magic rewrite setenvif speling status unique_id userdir usertrack vhost_alias negotiation" ELIBC="glibc" I NPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 m txorb ncurses text" LINGUAS="en cs cz" USERLAND="GNU" VIDEO_CARDS="radeon vesa" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, MAKEOPTS, PORTAGE_COMPRESS, POR TAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS #
Please attach xorg.conf and Xorg.0.log
Created attachment 206581 [details] Xorg.0.log I tried to reproduce and am getting on shutdown partial stacktraces at the very moment. I am attaching maybe slightly different Xorg.log.0 file therefore. The difference would be only in the exitcodes on shutdown, though. Specifically, I reproduced a core dump when I try to login using kerbeors password. The pam modules as you will see in xdm.log return unhandled return code. That results in coredump of smaller size. I will post that now. Larger coredumps from xdm (which I initially reported) I get when I have in xterm rootshell, and shutdown using "sync; init 6; exit" (so it kills my xdm session, xterm, etc.). That reproducibly works as I see daily dumps when I turned down my laptop xdm crashed and have the complete dump file. Unfortunately xdm.log gets overwritten, unlike being renamed to xdm.log.old. :( Do not now why right now I cannot get a complete dump file. I upgraded few packages today, maybe that is why. :(
Created attachment 206582 [details] xorg.conf
Created attachment 206583 [details] xdm.log-crash-on-valid-kerberos-password No kerberos KDC server issue (heimdal), I can get a valid ticket using kinit, for example.
Created attachment 206585 [details] crash-on-valid-kerberos-password.txt
Created attachment 206586 [details] pam-config-files.txt
Finally, here is what syslog recorded: Oct 9 22:49:08 vrapenec kernel: agpgart-intel 0000:00:00.0: AGP 2.0 bridge Oct 9 22:49:08 vrapenec kernel: agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode Oct 9 22:49:08 vrapenec kernel: radeonfb 0000:01:00.0: putting AGP V2 device into 4x mode Oct 9 22:49:09 vrapenec kernel: [drm] Setting GART location based on new memory map Oct 9 22:49:09 vrapenec kernel: [drm] Loading R100 Microcode Oct 9 22:49:09 vrapenec kernel: [drm] writeback test succeeded in 2 usecs Oct 9 22:49:27 vrapenec acpid: client 2728[0:0] has disconnected Oct 9 22:49:27 vrapenec acpid: client connected from 2728[0:0] Oct 9 22:49:27 vrapenec acpid: 1 client rule loaded Oct 9 22:49:28 vrapenec kernel: agpgart-intel 0000:00:00.0: AGP 2.0 bridge Oct 9 22:49:28 vrapenec kernel: agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode Oct 9 22:49:28 vrapenec kernel: radeonfb 0000:01:00.0: putting AGP V2 device into 4x mode Oct 9 22:49:28 vrapenec kernel: [drm] Loading R100 Microcode Oct 9 22:49:36 vrapenec xdm[2733]: pam_unix(xdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=mmokrejs Oct 9 22:49:38 vrapenec kernel: xdm[2733]: segfault at 1 ip b7ba9dd9 sp bfba047c error 4 in libc-2.10.1.so[b7b64000+16d000] Oct 9 22:49:38 vrapenec kernel: mtrr: no MTRR for d8000000,2000000 found
Ok, I finally reproduced the "largedump" files while entering the kerberos password. That gdb stacktrace is effectively same as well as the xdm.log contents. So, does not matter whether you take the kerberos way of play with kill signals directly.
I am getting the same segfault, but I am not using kerberos. By compiling a private xdm and adding debugging, I tracked it down to somewhere within the call to pam_close_session(). This started after I upgraded to xorg 1.6. The fault is logged as xdm[23870]: segfault at b7f5caf5 ip b7bc05bb sp bfe5c8a8 error 4 in libc-2.9.so[b7b4f000+137000]
I can also confirm this. I see the same segfault without kerberos as well. I also believe that it was introduced with the last Xorg update. I can still run X without xdm though.
# emerge --info Portage 2.1.7.1 (default/linux/x86/2008.0, gcc-4.2.4, glibc-2.10.1-r0, 2.6.27.3 i686) ================================================================= System uname: Linux-2.6.27.3-i686-Genuine_Intel-R-_CPU_T2400_@_1.83GHz-with-gentoo-2.0.1 Timestamp of tree: Wed, 14 Oct 2009 19:25:02 +0000 app-shells/bash: 4.0_p33 dev-java/java-config: 2.1.9-r1 dev-lang/python: 2.4.6, 2.5.4-r3, 2.6.3, 3.1.1-r1 dev-python/pycrypto: 2.0.1-r8 dev-util/cmake: 2.6.4-r3 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.5.1 sys-apps/sandbox: 2.1 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.4_p6, 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2, 1.11 sys-devel/binutils: 2.19.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="x86 ~x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /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=prescott -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://mirror.internode.net/pub/gentoo ftp://ftp.swin.edu.au/gentoo http://ftp.swin.edu.au/gentoo http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" LDFLAGS="-Wl,-O1" LINGUAS="en de" MAKEOPTS="-j3" 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/local/portage" SYNC="rsync://mirror.internode.net/gentoo-portage" USE="X Xaw3d a52 aac aalib acl acpi alsa apache2 bash-completion berkdb bluetooth bzip2 clamav cli consolekit cracklib crypt cups curl dbus dga dillo divx dri dts dv dvd dvdread emacs encode esd examples expat fbcon ffmpeg fftw firefox fontconfig fortran gcj gd gdbm gif glade gnome gnutls gpm gsl gtk gtkhtml iconv icu imap imlib ipv6 isdnlog jpeg jpeg2k lapack ldap lzo mjpeg mmx mng modules mp3 mp4 mpeg mpi msn mudflap mule mysql ncurses netcdf nls nptl nptlonly nsplugin objc objc++ objc-gc ocaml ogg opengl openmp oss pam pcre pdf perl png pppd python qt3support quicktime readline reflection ruby sdl session smp spamassassin spell spl sqlite sse sse2 ssl svg svga sysfs tcl tcltk tcpd threads tiff tk truetype unicode v4l2 vorbis win32codecs wmf wmp x86 xface xinerama xml xmms xorg xpm xprint xulrunner xv xvid zip zlib" ALSA_CARDS="hda-intel" 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="en de" USERLAND="GNU" VIDEO_CARDS="nv nvidia vesa" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Someone please file a bug upstream [1] and paste the url here so we can track it. Thanks [1] http://bugs.freedesktop.org/ => select the "xorg" product
*** Bug 287817 has been marked as a duplicate of this bug. ***
Created attachment 207363 [details] xdm-crash-on-kerberos-password.txt
Created attachment 207364 [details] xdm-crash-on-fvwm2-exit.txt
The crash when I exit my window manager is related to PAM. The file xdm-crash-on-fvwm2-exit.txt contains full debug as I have finally figured out why I did not have debug info for glibc (bug #289364). The crash on kerberos password is different (see xdm-crash-on-kerberos-password.txt) for full debug (I zapped the contents of pa_string variable). Hope that was the right field. ;-) I suspect an issue between glibc-2.10.1 and 2.6.30.6 kernel. Please note my kernel headers at least at the moment are 2.6.30-r1 while /usr/src/linux symlinks to linux-2.6.30.6 tree. I think I saw somewhere in Gentoo bugzilla today that glibc should compile fine unless kernel headers are newer then the actually running kernel. I don't think it is my case but let me emphasize this. I am not reopening upstream, at least yet.
(In reply to comment #16) > Created an attachment (id=207364) [details] > xdm-crash-on-fvwm2-exit.txt > Anyway, what is this evil command? I forgot to ask while opening this bug report: /bin/rm -f /var/lib/xdm/authdir/authfiles/A*[cut] Doesn't xdm know the name of the tempfile it created?
(In reply to comment #13) > Someone please file a bug upstream [1] and paste the url here so we can track > it. > > Thanks > > [1] http://bugs.freedesktop.org/ => select the "xorg" product
The "kerberos" issue in https://bugs.freedesktop.org/show_bug.cgi?id=24588 . The SessionExit -> PAM -> strlen() issue is in https://bugs.freedesktop.org/show_bug.cgi?id=24589 .
reopening
And closing with the proper resolution. Thanks
Upstream has committed a fix: http://bugs.freedesktop.org/show_bug.cgi?id=24589 . Remi, please bring for us into Gentoo.
Does it work for you? Thanks
The patch fixes the problem with xdm crashing on logout. Not the issue with kerberos password.
xdm being really low-priority for us (and me being very busy IRL) I can just suggest using xdm-9999 from the x11 overlay and opening new bugs upstream (with remi at gentoo dot org CCed) so that bugs are taken care of. We'll close this bug once a new release of xdm is done upstream. Thanks
(In reply to comment #26) > xdm being really low-priority for us (and me being very busy IRL) I can just > suggest using xdm-9999 from the x11 overlay and opening new bugs upstream (with > remi at gentoo dot org CCed) so that bugs are taken care of. > > We'll close this bug once a new release of xdm is done upstream. > > Thanks > There is no xdm in x11 overlay at all. :( But as you probably also received a Cc: from the upstream bug, it is likely the bug was fixed by upstream just now.
(In reply to comment #27) > There is no xdm in x11 overlay at all. :( Feel free to send us one, we'll gladly review it and put it in the overlay. Just use the latest ebuild as a base, that should work. (as long as you number it -9999) > But as you probably also received a > Cc: from the upstream bug, it is likely the bug was fixed by upstream just > now. Yeah, I saw. Testing the latest git is a good idea. Thanks
