[Bug 73879] New: GPU hangs - stuck on render ring when using WebGL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73879

          Priority: medium
            Bug ID: 73879
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: GPU hangs - stuck on render ring when using WebGL
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: czajernia at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Hi,

I'm very pleased to see there's a new message in dmesg saying what to do...
This is what I get when using Google Maps+WebGL in Google Chrome - the display
freezes for a few seconds and usually Chrome detects a WebGL crash.

[  972.828869] Watchdog[5410]: segfault at 0 ip 00007f8ae4e6c62e sp
00007f8ad06547e0 error 6 in chrome[7f8ae155b000+5b82000]
[  972.880632] [drm] stuck on render ring
[  972.880634] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  972.880635] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  972.880635] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  972.880635] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  972.880635] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  972.906631] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x85d4000 ctx 5) at 0x85d6cb8

Gentoo Linux - kernel 3.13.0
xf86-video-intel 2.99.907
Mesa 9.2.5
Google Chrome 32.0.1700.77

Lenovo Thinkpad X1 (Sandy Bridge/Intel(R) HD Graphics 3000)

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