Created attachment 106035 [details]
gpu crash dump

When i start Chromium, sometimes Xorg crashes, sometimes Chromium crashes.
Same goes for other OpenGL applications like Steam or Gwenview.

Linux laptop1638 3.16.2-1-ARCH #1 SMP PREEMPT Sat Sep 6 13:12:51 CEST 2014 x86_64 GNU/Linux

Arch Linux Driver:
testing/xf86-video-intel 2.99.916-1 (xorg-drivers xorg) [installed]
    X.org Intel i810/i830/i915/945G/G965+ video drivers

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile 
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.2.7
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.2.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.2.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.0
OpenGL ES profile extensions:

GL_VERSION: 3.0 Mesa 10.2.7
GL_RENDERER: Mesa DRI Intel(R) Ivybridge Mobile

lspci:
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Device 21f5
        Flags: bus master, fast devsel, latency 0, IRQ 45
        Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 6000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

dmesg output on crash:
[ 7380.337430] [drm] stuck on render ring
[ 7380.338005] [drm] GPU HANG: ecode 0:0x85ffbffa, in chromium [2909], reason: Ring hung, action: reset
[ 7380.338008] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 7380.338009] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 7380.338010] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 7380.338011] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 7380.338012] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 7382.339125] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[ 7386.315840] [drm] stuck on render ring
[ 7386.316422] [drm] GPU HANG: ecode 0:0x85ffbffa, in chromium [2909], reason: Ring hung, action: reset
[ 7388.317585] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off