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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW]igt/gem_exec_nop/render causes [drm:i915_context_is_banned [i915]] *ERROR* gpu hanging too fast, banning!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89633">89633</a>
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<tr>
<th>Summary</th>
<td>[BSW]igt/gem_exec_nop/render causes [drm:i915_context_is_banned [i915]] *ERROR* gpu hanging too fast, banning!
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=114423" name="attach_114423" title="dmesg">attachment 114423</a> <a href="attachment.cgi?id=114423&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: not sure, it has <a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED DUPLICATE - [BSW ppgtt Bisected]igt/gem_exec_nop/render sporadically causes system hang"
href="show_bug.cgi?id=88845">bug 88845</a>
no-working platforms: BSW
==kernel==
--------------------------
drm-intel-nightly/3753ea527e539d3358a6368e77cb29ecb2e71c42
commit 3753ea527e539d3358a6368e77cb29ecb2e71c42
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Tue Mar 17 22:36:04 2015 +0100
drm-intel-nightly: 2015y-03m-17d-21h-35m-20s UTC integration manifest
==Bug detailed description==
-----------------------------
It happens on drm-intel-nightly kernel, works well on drm-intel-next-queued
kernel.
output:
IGT-Version: 1.10-g505645c (x86_64) (Linux:
4.0.0-rc4_drm-intel-nightly_3753ea_20150318+ x86_64)
Time to exec x 1: 487.000µs (ring=render)
Time to exec x 2: 65.500µs (ring=render)
Time to exec x 4: 28.000µs (ring=render)
Time to exec x 8: 19.125µs (ring=render)
Time to exec x 16: 12.750µs (ring=render)
Time to exec x 32: 10.688µs (ring=render)
Time to exec x 64: 7.156µs (ring=render)
Time to exec x 128: 6.453µs (ring=render)
Time to exec x 256: 5.773µs (ring=render)
Time to exec x 512: 5.232µs (ring=render)
Time to exec x 1024: 5.241µs (ring=render)
Time to exec x 2048: 5.426µs (ring=render)
Time to exec x 4096: 4.485µs (ring=render)
Time to exec x 8192: 4.476µs (ring=render)
Time to exec x 16384: 5.002µs (ring=render)
Test assertion failure function loop, file gem_exec_nop.c:100:
Failed assertion: exec(fd, handle, count, ring_id) == 0
error: -1 != 0
Subtest render failed.
**** DEBUG ****
Time to exec x 1: 487.000µs (ring=render)
Time to exec x 2: 65.500µs (ring=render)
Time to exec x 4: 28.000µs (ring=render)
Time to exec x 8: 19.125µs (ring=render)
Time to exec x 16: 12.750µs (ring=render)
Time to exec x 32: 10.688µs (ring=render)
Time to exec x 64: 7.156µs (ring=render)
Time to exec x 128: 6.453µs (ring=render)
Time to exec x 256: 5.773µs (ring=render)
Time to exec x 512: 5.232µs (ring=render)
Time to exec x 1024: 5.241µs (ring=render)
Time to exec x 2048: 5.426µs (ring=render)
Time to exec x 4096: 4.485µs (ring=render)
Time to exec x 8192: 4.476µs (ring=render)
Time to exec x 16384: 5.002µs (ring=render)
Test assertion failure function loop, file gem_exec_nop.c:100:
Failed assertion: exec(fd, handle, count, ring_id) == 0
error: -1 != 0
**** END ****
Subtest render: FAIL (12.488s)
==Reproduce steps==
----------------------------
1. ./gem_exec_nop --run-subtest render</pre>
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