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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - GPU freeze / hang on Ubuntu 14.04"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79891">79891</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 freeze / hang 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>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>fisch.666@gmx.de
</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>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=100831" name="attach_100831" title="Content of /sys/class/drm/card0/error after hang">attachment 100831</a> <a href="attachment.cgi?id=100831&action=edit" title="Content of /sys/class/drm/card0/error after hang">[details]</a></span>
Content of /sys/class/drm/card0/error after hang
Hi,
from time to time i'm noticing GPU freezes / hangs on Ubuntu 14.04 which needs
a switch to the tty1 and a restart of the whole system. According to the pasted
entries in the kernel.log below i should report a bug in here.
Specs:
Thinkpad T410s
Ubuntu 14.04 64bit
lspci -v output:
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 21c1
Flags: bus master, fast devsel, latency 0, IRQ 42
Memory at f2000000 (64-bit, non-prefetchable) [size=4M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 1800 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
kernel.log entries:
[drm] stuck on render ring
[drm] GPU crash dump saved to /sys/class/drm/card0/error
[drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including
userspace.
[drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI ->
DRM/Intel
[drm] drm/i915 developers can then reassign to the right component if it's not
a kernel issue.
[drm] The gpu crash dump is required to analyze gpu hangs, so please always
attach it.
[drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xca83000 ctx
0) at 0xca83344
[drm] stuck on render ring
Watchdog[21201]: segfault at 0 ip 00007f88b906cb88 sp 00007f88a9e2c720 error 6
in libcontent.so[7f88b8908000+fd7000]
[drm] stuck on render ring
Watchdog[23966]: segfault at 0 ip 00007f4a822adb88 sp 00007f4a7306d720 error 6
in libcontent.so[7f4a81b49000+fd7000]
[drm] stuck on render ring
[drm] stuck on render ring
[drm:intel_pipe_set_base] *ERROR* pin & fence failed</pre>
</div>
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