Silent segfault in KDM on login

Message

Caper Diaboli · Post by **Caper Diaboli** » Fri Jul 10, 2009 7:50 pm

Hello,

I'm installing Gentoo on a Lenovo X61 Tablet. So far everything has been proceeding without a hitch, but right when it comes to starting X, I'm stumped. I've configured /etc/conf.d/xdm to use KDM for login.

It seems to start ok, the login screen appears but right after I enter the username/password, the screen blacks out and suddenly I'm back in console. There is nothing glaringly obvious in the Xorg.0.log or kdm.log that would point me in the right direction, however there is a curious line in /var/log/messages I can't figure out the cause.

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Section "Files"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "fi"
EndSection

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ExplorerPS/2"
        Option          "Emulate3Buttons"       "on"
        Option          "Emulate3TimeOut"       "50"
        Option          "EmulateWheel"          "on"
        Option          "EmulateWheelTimeOut"   "200"
        Option          "EmulateWheelButton"    "2"
        Option          "YAxisMapping"          "4 5"
        Option          "XAxisMapping"          "6 7"
        Option          "ZAxisMapping"          "4 5"
EndSection

Section "InputDevice"
        Driver          "wacom"
        Identifier      "stylus"
        Option          "Device"        "/dev/ttyS0"
        Option          "Type"          "stylus"
        Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
EndSection

Section "InputDevice"
        Driver          "wacom"
        Identifier      "eraser"
        Option          "Device"        "/dev/ttyS0"
        Option          "Type"          "eraser"
        Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
EndSection

Section "InputDevice"
        Driver          "wacom"
        Identifier      "cursor"
        Option          "Device"        "/dev/ttyS0"
        Option          "Type"          "cursor"
        Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
EndSection

Section "Device"
        Identifier      "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller"
        Driver          "intel"
        BusID           "PCI:0:2:0"
EndSection

Section "Monitor"
        Identifier      "Generic Monitor"
        Option          "DPMS"
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller"
        Monitor         "Generic Monitor"
        DefaultDepth    24
        SubSection "Display"
                Modes           "1024x768"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "stylus"        "SendCoreEvents"
        InputDevice     "cursor"        "SendCoreEvents"
        InputDevice     "eraser"        "SendCoreEvents"
EndSection

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Portage 2.1.6.13 (default/linux/amd64/2008.0/desktop, gcc-4.3.2, glibc-2.9_p20081201-r2, 2.6.28-tuxonice-r10 x86_64)
=================================================================
System uname: Linux-2.6.28-tuxonice-r10-x86_64-Intel-R-_Core-TM-2_Duo_CPU_L7500_@_1.60GHz-with-glibc2.2.5
Timestamp of tree: Tue, 07 Jul 2009 18:00:01 +0000
app-shells/bash:     3.2_p39
dev-lang/python:     2.5.4-r3
dev-util/cmake:      2.6.4
sys-apps/baselayout: 2.0.1
sys-apps/openrc:     0.4.3-r3
sys-apps/sandbox:    1.6-r2
sys-devel/autoconf:  2.63
sys-devel/automake:  1.7.9-r1, 1.9.6-r2, 1.10.2
sys-devel/binutils:  2.18-r3
sys-devel/gcc-config: 1.4.1
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.27-r2
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=core2"
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"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /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 -pipe -march=core2"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://mirror.mdfnet.se/mirror/gentoo"
LDFLAGS="-Wl,-O1"
LINGUAS="en"
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"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X aac acl acpi alsa amd64 amr berkdb bluetooth branding bzip2 cairo cdr cli cracklib crypt cups dbus dirac dri dvd dvdr dvdread eds emboss encode esd evo faac faad fam firefox flac fortran gdbm gif gmp gpm gps gstreamer gtk hal iconv imagemagick ipv6 isdnlog jpeg jpeg2k kde ladspa ldap libnotify mad midi mikmod mmx mmxext mp3 mpeg mudflap multilib ncurses nls nptl nptlonly ogg openal openct opengl openmp pam pcre pdf perl png ppds pppd python qt3 qt3support qt4 quicktime readline reflection sdl session speex spell spl sse sse2 ssl ssse3 startup-notification svg sysfs tcpd theora threads tiff truetype unicode usb v4l v4l2 vorbis x264 xcomposite xml xorg xulrunner xv xvid xvmc zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" 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 authn_alias authn_anon 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 deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard evdev mouse wacom" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en" USERLAND="GNU" VIDEO_CARDS="intel"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY

Due to the sheer length of the Xorg.0.log I'm a bit reluctant to add it here.

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X.Org X Server 1.5.3
Release Date: 5 November 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.28-tuxonice-r10 x86_64
Current Operating System: Linux gungnir 2.6.28-tuxonice-r10 #1 SMP PREEMPT Tue Jul 7 22:44:48 EEST 2009 x86_64
Build Date: 08 July 2009  06:54:54PM

        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Jul 10 22:32:10 2009
(==) Using config file: "/etc/X11/xorg.conf"
usbDetect: can not ioctl version
(==) Wacom using pressure threshold of 15 for button 1
(==) Wacom General ISDV4 tablet speed=9600 (19200) maxX=24576 maxY=18432 maxZ=255 resX=2540 resY=2540  tilt=disabled
(==) Wacom device "stylus" top X=0 top Y=0 bottom X=24576 bottom Y=18432 resol X=2540 resol Y=2540
(==) Wacom device "cursor" top X=0 top Y=0 bottom X=24576 bottom Y=18432 resol X=2540 resol Y=2540
(==) Wacom device "eraser" top X=0 top Y=0 bottom X=24576 bottom Y=18432 resol X=2540 resol Y=2540
expected keysym, got dead_belowcomma: line 124 of fi
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
expected keysym, got dead_belowcomma: line 124 of fi
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
(EE) PreInit returned NULL for "hdaps"
(EE) config/hal: NewInputDeviceRequest failed
expected keysym, got dead_belowcomma: line 124 of fi
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
(EE) Virtual ThinkFinger Keyboard: Read error: No such device
error setting MTRR (base = 0xe0000000, size = 0x10000000, type = 1) Invalid argument (22)

From the execution of /etc/init.d/xdm start:

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acpid: client connected from 22008[0:0]
acpid: 1 client rule loaded
[18739.241035] [drm:i915_setparam] *ERROR* unknown parameter 4
[18739.835918] X:22008 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
[18739.835926] reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining
[18743.539345] X:22008 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
[18743.539353] reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining
[18743.694429] X:22008 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
[18743.694436] reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining
[18743.709024] X:22014 freeing invalid memtype e0000000-f0000000
[18746.547356] input: Virtual ThinkFinger Keyboard as /devices/virtual/input/input19
[18746.566616] usb usb4: usb auto-resume
[18746.566623] usb usb4: wakeup_rh
[18746.598312] hub 4-0:1.0: hub_resume
[18746.598783] usb usb1: usb auto-resume
[18746.598793] ehci_hcd 0000:00:1a.7: resume root hub
[18746.627645] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
[18746.658306] hub 1-0:1.0: hub_resume
[18746.658402] X:22008 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
[18746.658409] reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining
[18746.658484] usb usb2: usb auto-resume
[18746.658494] ehci_hcd 0000:00:1d.7: resume root hub
[18746.687061] hub 1-0:1.0: state 7 ports 4 chg 0000 evt 0000
[18746.701758] X:22030 freeing invalid memtype e0000000-f0000000
[18746.727049] hub 2-0:1.0: hub_resume
[18746.727099] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0000
[18746.727222] usb usb5: usb auto-resume
[18746.727228] usb usb5: wakeup_rh
[18746.759045] hub 5-0:1.0: hub_resume
[18746.759087] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000
[18746.833777] kdm[22032]: segfault at 1800520 ip 0000000001800520 sp 00007f6e3c0ce708 error 15
kdm_greet[22016]: Can't read from core
kdm[22004]: Unknown session exit code 0 (sig 11) from manager process
[18747.652458] X:22008 freeing invalid memtype e0000000-f0000000
[18747.672646] X:22008 freeing invalid memtype e0000000-f0000000
[18747.672686] mtrr: no MTRR for e0000000,10000000 found
[18747.704320] usb usb4: suspend_rh (auto-stop)
[18747.954081] usb usb5: suspend_rh (auto-stop)
[18748.783059] hub 4-0:1.0: hub_suspend
[18748.783073] usb usb4: bus auto-suspend
[18748.783078] usb usb4: suspend_rh
[18748.784119] hub 1-0:1.0: hub_suspend
[18748.784128] usb usb1: bus auto-suspend
[18748.784133] ehci_hcd 0000:00:1a.7: suspend root hub
[18748.784169] hub 2-0:1.0: hub_suspend
[18748.784176] usb usb2: bus auto-suspend
[18748.784180] ehci_hcd 0000:00:1d.7: suspend root hub
[18748.784213] hub 5-0:1.0: hub_suspend
[18748.784219] usb usb5: bus auto-suspend
[18748.784223] usb usb5: suspend_rh

Any ideas where to start looking?

--

reavertm · Post by **reavertm** » Sat Jul 11, 2009 5:32 pm

You could try here - http://bugs.gentoo.org/show_bug.cgi?id=257339
But please read all comments there first to verify whether this is really the same issue.
Also try without kdm (use startx) as well. And verify whether it's not X11 driver issue as those are often the case as well.

Caper Diaboli · Post by **Caper Diaboli** » Sun Jul 12, 2009 10:05 am

reavertm wrote:You could try here - http://bugs.gentoo.org/show_bug.cgi?id=257339
But please read all comments there first to verify whether this is really the same issue.
Also try without kdm (use startx) as well. And verify whether it's not X11 driver issue as those are often the case as well.

Thanks for the pointer, however I doubt this is the case as I'm using kdm-3.5.10 (and KDE 3.5 in general, which I should have mentioned earlier but unfortunately didn't realize that at the moment). I will try if any of the comments in the bug could be applied to this.

Using startx everything seems to work as it should. There must be something strange with kdm itself, or as you mentioned, a X11 driver issue. I'll have to try fiddling with those a bit.

I'm still quite baffled with this, I still haven't managed to figure out the cause or any kind of solution to this. It does work normally sometimes, appears that when I reboot the computer and then run /etc/init.d/xdm start, and then proceed with the login it either works or doesn't. Whichever is the result, it keeps doing the same till I reboot again.

--

energyman76b · Post by **energyman76b** » Sun Jul 12, 2009 1:40 pm

which sounds like driver issues.