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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - GPU hangs - stuck on render ring when using WebGL"
href="https://bugs.freedesktop.org/show_bug.cgi?id=73879">73879</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>GPU hangs - stuck on render ring when using WebGL
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>czajernia@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
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<div>
<pre>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)</pre>
</div>
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