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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 --- - Frequent hang and render glitches on Ubuntu 14.04"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75295">75295</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>Frequent hang and render glitches on Ubuntu 14.04
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rohandhruva@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>After the latest kernel upgrade, my system has many graphical glitches, and is
locking up frequently. The dmesg output has errors like these:
[ 1951.568672] Watchdog[2753]: segfault at 0 ip 00007fe00773a32e sp
00007fdff869f680 error 6 in chrome[7fe003cbe000+5dd9000]
[ 1959.241676] [drm] stuck on render ring
[ 1959.241685] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 1959.241686] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 1959.241687] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 1959.241688] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 1959.241689] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 1959.244266] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x3dc32000 ctx 17) at 0x3dc32c48
[ 3964.330034] perf samples too long (2503 > 2500), lowering
kernel.perf_event_max_sample_rate to 50000
[ 4849.028446] [drm] stuck on render ring
[ 4849.028492] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x565c2000 ctx 17) at 0x565c2c48
[ 4861.093551] Watchdog[5226]: segfault at 0 ip 00007fc00d36f32e sp
00007fbffe2d4680 error 6 in chrome[7fc0098f3000+5dd9000]
[ 4863.020198] [drm] stuck on render ring
[ 4863.020255] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x3dc32000 ctx 17) at 0x3dc32c48
[ 4893.028245] [drm] stuck on render ring
[ 4893.028295] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x4cbed000 ctx 10) at 0x4cbedc98
[ 4899.041855] [drm] stuck on render ring
[ 4899.041900] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0xea3d000 ctx 10) at 0xea3dc98
[ 4899.041903] [drm:i915_context_is_banned] *ERROR* context hanging too fast,
declaring banned!
[ 5833.173837] warning: `VBoxHeadless' uses 32-bit capabilities (legacy support
in use)
[ 5833.326542] device vboxnet0 entered promiscuous mode
[ 6429.476175] [drm] stuck on render ring
[ 6488.455986] [drm] stuck on render ring
[ 6547.507818] [drm] stuck on render ring
[ 6615.490047] [drm] stuck on render ring
I am not sure if the xserver-xorg-video-intel ricver was also updated at the
same time. This is the version in use:
rdhruva@ubuntu:~$ apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
Installed: 2:2.99.910-0ubuntu1
Candidate: 2:2.99.910-0ubuntu1
Version table:
*** 2:2.99.910-0ubuntu1 0
500 <a href="http://us.archive.ubuntu.com/ubuntu/">http://us.archive.ubuntu.com/ubuntu/</a> trusty/main amd64 Packages
100 /var/lib/dpkg/status
The corresponding ubuntu bug is:
<a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1282867">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1282867</a>. That bug has a
lot of information, including dmidecode output.</pre>
</div>
</p>
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