Ubuntu
xorg-server package

X crash in xf86ModesEqual on gnome-session start

Bug #253021 reported by James Westby
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
xorg-server (Ubuntu)
Fix Released
Medium
Unassigned

Bug Description

Binary package hint: xserver-xorg-video-intel

Hi,

This started occuring sometime in the last week. (Today was the first
session restart in that time).

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

using the intel driver leads to the following backtrace:

#0 0x080efcac in xf86ModesEqual (pMode1=0x9fcf478, pMode2=0xb8) at ../../../../hw/xfree86/modes/xf86Modes.c:269
No locals.
#1 0x080e97a3 in xf86SetScrnInfoModes (scrn=0x9cb1d60) at ../../../../hw/xfree86/modes/xf86Crtc.c:1709
    config = (xf86CrtcConfigPtr) 0x9cb4538
    output = (xf86OutputPtr) 0x9cb5218
    crtc = <value optimized out>
    last = (DisplayModePtr) 0xb8
    mode = (DisplayModePtr) 0x9fcf478
#2 0x080f1a78 in xf86RandR12GetInfo12 (pScreen=0x9cbe640, rotations=0xbfd640ca) at ../../../../hw/xfree86/modes/xf86RandR12.c:1012
    pScrn = (ScrnInfoPtr) 0x9cb1d60
#3 0x0816d6c9 in RRGetInfo (pScreen=0x9cbe640) at ../../randr/rrinfo.c:196
    pScrPriv = (rrScrPrivPtr) 0x9cc2210
    rotations = 0
    i = 167572600
#4 0x081719dc in ProcRRGetScreenResources (client=0x9cc1940) at ../../randr/rrscreen.c:345

(full backtrace attached).

I get gdm fine, but this occurs when starting gnome-session. Failsafe GNOME also fails, but failsafe
terminal works. If I start gnome-session from failsafe terminal then I get the crash, but I can
start e.g. compiz without problems. Reproducible with no xorg.conf as well.

Running up-to-date Intrepid, specific versions of a few packages:

ii xserver-xorg 1:7.4~0ubuntu2 the X.Org X server
ii xserver-xorg-core 2:1.4.99.905-0ubuntu4 Xorg X server - core server
ii xserver-xorg-video-intel 2:2.3.2-2ubuntu3 X.Org X server -- Intel i8xx, i9xx display d
ii libxrandr2 2:1.2.2-2 X11 RandR extension library
ii libglu1-mesa 7.1~rc3-1ubuntu1 The OpenGL utility library (GLU)
ii libgl1-mesa-dri 7.1~rc3-1ubuntu1 A free implementation of the OpenGL API -- DRI modules
ii libgl1-mesa-glx 7.1~rc3-1ubuntu1 A free implementation of the OpenGL API -- GLX runtime

Please let me know any more information that I can provide.

Thanks,

James

Related branches

lp:ubuntu/lucid/xorg-server
Revision history for this message
James Westby (james-w) wrote :
Revision history for this message
James Westby (james-w) wrote :

xorg.conf. Driver changed to vesa to get working X, but "intel" when crashes.
Crash is reproducible with no xorg.conf.

Revision history for this message
James Westby (james-w) wrote :

Xorg.0.log.old showing the crash.

Revision history for this message
James Westby (james-w) wrote :

Xorg.0.log from a succesful start with vesa.

Revision history for this message
James Westby (james-w) wrote :

Hi,

Here's the .xsession-errors from a failure.

There was no change when I disabled the g-s-d xrandr
plugin.

Thanks,

James

Revision history for this message
James Westby (james-w) wrote :

bug 247003 has some similarities to this one.

Thanks,

James

Revision history for this message
James Westby (james-w) wrote :

Keywork googling shows that 1771edcb44b564f83f509748b4e4cd5b7586e2a8
may be relevant.

Thanks,

James

Revision history for this message
James Westby (james-w) wrote :

Bingo, applying that commit fixes the crash and I am able to login.

Thanks,

James

Changed in xserver-xorg-video-intel:
importance: Undecided → Medium
status: New → Triaged
Revision history for this message
James Westby (james-w) wrote :

Hi,

This fix is apparently in xorg-server-1.4.99.906, but not 905.

Thanks,

James

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package xorg-server - 2:1.4.99.906-1ubuntu1

---------------
xorg-server (2:1.4.99.906-1ubuntu1) intrepid; urgency=low

  * Merge with debian experimental, 1.5RC6 (LP: #247120, #253021)
  * Drop 120_fedora_xserver-xaa-evict-pixmaps.patch, because offscreen
    pixmaps are already disabled by default.
  * Drop 124_fix_randr_no_crtc.patch, fixed upstream.
  * Add 130_fedora_call_switchcorekeyboard.patch, a hack to fix fd.o bug
    #16364. Breaks if the first hotplugged keyboard is not the wanted
    keyboard.
  * Patches from upstream master:
    131_remove_open-coded_strcasestr.patch
    - pre-requisite for the rest
    132_add_parsing_for_xkb.options.patch
    - parsing xkb.options didn't work (fd.o #16874)
    133_support_strlist_for_xkboptions.patch
    - allow using a list for xkb.options like before.
    134_protect_against_out_of_bounds.patch
    - protect against potential out-of-bounds indexing.

xorg-server (2:1.4.99.906-1) experimental; urgency=low

  * debian/rules: drop useless handling of nostrip in DEB_BUILD_OPTIONS (this
    is taken care of by dh_strip); make the rules files and xsfbs.mk
    parallel-safe, and enable parallel=n using example code from Debian
    Policy.
  * debian/rules: put the source package name and version in builderstring
    instead of osvendor, add builder email as well; don't explicitly set
    osname, configure sets it to $(uname -srm) by default.
  * New upstream release candidate.
    - fixes 64-bit Xephyr (closes: #491569)
    - work around the DIX losing physical monitor dimensions for randr 1.1
      drivers, in particular nvidia (closes: #488987)
    - make sure RANDR reports refresh as 0 if pixel clock is 0 (closes:
      #490258)
    - doesn't try to load dri2 when it's not built (closes: #491651)
  * Switch to running autoreconf at build time, and build-depend on automake,
    libtool and xutils-dev.
  * Reformat the SGI Free Software License B, to shut up over 1000 lintian
    warnings.

 -- Timo Aaltonen <email address hidden> Tue, 05 Aug 2008 01:49:42 +0300

Changed in xorg-server:
status: Triaged → Fix Released
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