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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 - [BYT]igt/drv_hangman sporadically causes *ERROR* Timed out: waiting for Render to ack"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85684">85684</a>
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<tr>
<th>Summary</th>
<td>[BYT]igt/drv_hangman sporadically causes *ERROR* Timed out: waiting for Render to ack
</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>
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<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>
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<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>==System Environment==
--------------------------
Regression: not sure
Non-working platforms: BYT
==kernel==
--------------------------
drm-intel-nightly/bd21cf795cf5dc278f1451d0f7a597cb1d13c2ba
==Bug detailed description==
Run 2 cycles, it happens once.
output:
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./drv_hangman
--run-subtest error-state-capture-bsd
IGT-Version: 1.8-gab5f7ea (x86_64) (Linux:
3.18.0-rc2_drm-intel-nightly_bd21cf_20141030+ x86_64)
Subtest error-state-capture-bsd: SUCCESS (12.504s)
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./drv_hangman
--run-subtest error-state-capture-bsd
IGT-Version: 1.8-gab5f7ea (x86_64) (Linux:
3.18.0-rc2_drm-intel-nightly_bd21cf_20141030+ x86_64)
Subtest error-state-capture-bsd: SUCCESS (12.057s)
root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm
<3>[19432.618274] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting
for Render to ack.
dmesg:
[19408.408488] drv_hangman: executing
[19408.408671] drv_hangman: starting subtest error-state-capture-bsd
[19414.574594] [drm] stuck on bsd ring
[19414.582570] [drm] GPU HANG: ecode 1:0xfffffffe, in drv_hangman [9123],
reason: Ring hung, action: reset
[19414.582574] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[19414.582576] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[19414.582578] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[19414.582581] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[19414.582583] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[19414.585604] [drm] Simulated gpu hang, resetting stop_rings
[19414.585610] drm/i915: Resetting chip after gpu hang
[19426.892311] drv_hangman: executing
[19426.892526] drv_hangman: starting subtest error-state-capture-bsd
[19432.610176] [drm] stuck on bsd ring
[19432.618152] [drm] GPU HANG: ecode 1:0xfffffffe, in drv_hangman [9131],
reason: Ring hung, action: reset
[19432.618274] [drm:__vlv_force_wake_get [i915]] *ERROR* Timed out: waiting for
Render to ack.
[19432.620510] [drm] Simulated gpu hang, resetting stop_rings
[19432.620516] drm/i915: Resetting chip after gpu hang
==Reproduce steps==
----------------------------
1. ./drv_hangman --run-subtest error-state-capture-bsd</pre>
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