Xorg crashed with SIGABRT

[Thibaut Brandscheid]

OS: Ubuntu GNOME 14.04
Graphic Card: Radeon R7 260X
Driver: default open source driver

After launching Planetary Annihilation on Steam an 'Planetary Annihilation is not responding' window popped-up and the crash report window appeared.OS: Ubuntu GNOME 14.04
Graphic Card: Radeon R7 260X

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-core 2:1.15.0-1ubuntu6 [modified: usr/lib/xorg/modules/extensions/libglx.so]
ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
Uname: Linux 3.13.0-15-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
Date: Thu Mar 6 18:53:10 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.3.6, 3.13.0-15-generic, x86_64: installed
 virtualbox, 4.3.6, 3.13.0-16-generic, x86_64: installed
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XTX [Radeon R7 260X] [1002:6658] (prog-if 00 [VGA controller])
   Subsystem: Gigabyte Technology Co., Ltd Device [1458:2274]
InstallationDate: Installed on 2014-02-08 (31 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140206)
MachineType: Gigabyte Technology Co., Ltd. P55A-UD3
ProcCmdline: /usr/bin/X :0 -background none -verbose -auth /var/run/gdm/auth-for-gdm-TOpshf/database -seat seat0 -nolisten tcp vt7
ProcEnviron:
 LANG=en_US.UTF-8
 TERM=linux
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-16-generic root=UUID=07a1c257-b925-4127-85b7-ece7b274321d ro rootflags=subvol=@ quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 ?? () 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: 08/10/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F11
dmi.board.name: P55A-UD3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF11:bd08/10/2010:svnGigabyteTechnologyCo.,Ltd.:pnP55A-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP55A-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P55A-UD3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0~rc3-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0~rc3-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
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: Tue Mar 11 19:21:27 2014
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Power Button KEYBOARD, id 7
 input Logitech Logitech USB Headset KEYBOARD, id 8
 input Logitech USB-PS/2 Optical Mouse MOUSE, id 9
 input AT Translated Set 2 keyboard KEYBOARD, id 10
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.15.0-1ubuntu6
xserver.video_driver: radeon

[Apport retracing service (apport)]

StacktraceTop:
 list_add (list=0x2, item=0x7f5561fcd290) at ../../../../../../../src/gallium/auxiliary/util/u_double_list.h:61
 radeon_bomgr_force_va (mgr=0x7f556315c400, va=0, size=140004536010400) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_bo.c:275
 ?? ()
 ?? ()

[penalvch (penalvch)]

Thibaut Brandscheid, any change using the VIvid enablement stack as outlined in https://wiki.ubuntu.com/Kernel/LTSEnablementStack ?

[Launchpad Janitor (janitor)]

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