Xorg crashed with SIGABRT

[Gabriel Diosan]

Crash on startup followed by restart of session to login screen.

In addition, starting Steam I see an error about a lack of direct rendering which seems related as it also causes are session restart.

Crash started after updating to Mesa 10.2.1-2ubuntu2

Ubuntu Gnome 14.10 daily build
Linux Kernel 3.15.0-6-generic #11-Ubuntu SMP Thu Jun 12 00:40:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: xserver-xorg-core 2:1.15.1-0ubuntu6
ProcVersionSignature: Ubuntu 3.15.0-6.11-generic 3.15.0
Uname: Linux 3.15.0-6-generic x86_64
ApportVersion: 2.14.3-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
Date: Fri Jun 27 18:55:14 2014
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XTX [Radeon R7 260X] [1002:6658] (prog-if 00 [VGA controller])
   Subsystem: XFX Pine Group Inc. Device [1682:7260]
InstallationDate: Installed on 2014-06-13 (13 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140612)
MachineType: Gigabyte Technology Co., Ltd. P35C-DS3R
ProcCmdline: /usr/bin/X :0 -background none -verbose -auth /var/run/gdm/auth-for-gdm-koCzUj/database -seat seat0 -nolisten tcp vt7
ProcEnviron:
 LANG=en_AU.UTF-8
 TERM=linux
 LANGUAGE=en_AU:en
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.15.0-6-generic root=UUID=e91c8c60-2ce8-4621-96aa-78a0543ed908 ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
Title: Xorg crashed with SIGABRT
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 11/17/2008
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F12E
dmi.board.name: P35C-DS3R
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF12E:bd11/17/2008:svnGigabyteTechnologyCo.,Ltd.:pnP35C-DS3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35C-DS3R:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P35C-DS3R
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.54-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.1-2ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.1-2ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Fri Jun 27 18:57:20 2014
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input Logitech USB Optical Mouse MOUSE, id 8
 input Logitech USB Keyboard KEYBOARD, id 9
 input Logitech USB Keyboard KEYBOARD, id 10
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.1-0ubuntu6
xserver.video_driver: radeon

[Apport retracing service (apport)]

StacktraceTop:
 dri2_lookup_egl_image (screen=<optimized out>, handle=0x7faaddcc3680) at ../../../../../../../src/gallium/state_trackers/dri/drm/dri2.c:569
 dri_get_egl_image (smapi=0x7faadd57d330, egl_image=0x7faaddcc3680, stimg=0x7fff1ec1c5d0) at ../../../../../../../src/gallium/state_trackers/dri/drm/dri_screen.c:321
 st_manager_get_egl_image_surface (st=0x7faaddecebf0, eglimg=<optimized out>) at ../../../../src/mesa/state_tracker/st_manager.c:837
 st_egl_image_target_texture_2d (ctx=0x7faaddea2280, target=<optimized out>, texObj=0x7faadddef7e0, texImage=0x7faaddf6f130, image_handle=<optimized out>) at ../../../../src/mesa/state_tracker/st_cb_eglimage.c:147
 _mesa_EGLImageTargetTexture2DOES (target=3553, image=0x7faaddcc3680) at ../../../../src/mesa/main/teximage.c:3388

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Maarten Lankhorst (mlankhorst)]

Seems like you're having a problem with acceleration. Can you test ppa:canonical-x/x-staging ? And because you have problems with steam, can you make sure all the 32-bits libs are installed? libgl1-mesa-dri:i386 and libgl1-mesa-glx:i386 might be missing or corrupt.

[Thibaut Brandscheid (k1au3-is-37)]

Before installing the x-staging ppa
===========================
Both packages you listed (libgl1-mesa-dri:i386 & libgl1-mesa-glx:i386) are already installed. The package manager doesn't complain about corrupted packages, so I guess there is no problem. Starting Steam with my hardware configuration and the default 14.10 packages still crashes the session.

After adding and installing the x-staging ppa
===================================
I was able to click on the Steam icon without the session crashing. The Steam client updated itself – as expected – and prompted me for my login credentials. Additionally this warning popped up:
>> OpenGL GLX context is not using direct rendering, which may cause performance problems.
>> For more information visit https://support.steampowered.com/kb_article.php?ref=9938-EYZB-7457

As advised on the Steam website I installed mesa-utils:i386 and executed glxinfo (output is attached).

[Launchpad Janitor (janitor)]

[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.]