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<base href="https://bugs.freedesktop.org/" />
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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 --- - [HSW nv]igt/kms_flip/flip-vs-modeset-vs-hang-interruptible causes [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring with debug kernel"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68641">68641</a>
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</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW nv]igt/kms_flip/flip-vs-modeset-vs-hang-interruptible causes [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring with debug kernel
</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>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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=84774" name="attach_84774" title="dmesg">attachment 84774</a> <a href="attachment.cgi?id=84774&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: Haswell
Kernel: (drm-intel-nightly_debug)aaf0996cd776c5131d108f08a2e587ab0baaa6d4
Bug detailed description:
-----------------------------
It happens on haswell with NVIDIA card GT440.
[drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring appears in dmesg.
# cat /sys/class/drm/card1/error
no error state collected
Following cases also has this issue.
igt/kms_flip/flip-vs-modeset-vs-hang-interruptible
igt/kms_flip/flip-vs-panning-vs-hang
igt/kms_flip/flip-vs-panning-vs-hang-interruptible
output:
Using monotonic timestamps
Beginning flip-vs-modeset-vs-hang-interruptible on crtc 3, connector 21
1920x1200 60 1920 1968 2000 2080 1200 1203 1209 1235 0x9 0x48 154000
...
flip-vs-modeset-vs-hang-interruptible on crtc 3, connector 21: PASSED
Beginning flip-vs-modeset-vs-hang-interruptible on crtc 5, connector 21
1920x1200 60 1920 1968 2000 2080 1200 1203 1209 1235 0x9 0x48 154000
...
flip-vs-modeset-vs-hang-interruptible on crtc 5, connector 21: PASSED
Beginning flip-vs-modeset-vs-hang-interruptible on crtc 7, connector 21
1920x1200 60 1920 1968 2000 2080 1200 1203 1209 1235 0x9 0x48 154000
...
flip-vs-modeset-vs-hang-interruptible on crtc 7, connector 21: PASSED
Subtest flip-vs-modeset-vs-hang-interruptible: SUCCESS
Reproduce steps:
----------------------------
1. ./kms_flip --run-subtest flip-vs-modeset-vs-hang-interruptible</pre>
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