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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 --- - igt/ZZ_missed_irq causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70747">70747</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>igt/ZZ_missed_irq causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle
</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>
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<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>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=87966" name="attach_87966" title="dmesg">attachment 87966</a> <a href="attachment.cgi?id=87966&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: PNV/ILK/SNB/IVB/HSW
Kernel: (drm-intel-nightly)d1b2b826f0969182f055d11c991f90fdc6a4924a
Bug detailed description:
---------------------------
It causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed...
render ring idle on PNV/ILK/SNB/IVB/HSW with -nightly and -queued kernel.
-fixes kernel doesn't support interrupt masking. It's a new case.
output:
.
Interrupts masked
Interrupts unmasked
Cleared missed interrupts
no error state collected in debug/dri/0/i915_error_state.
Reproduce steps:
----------------------------
1. ./ZZ_missed_irq</pre>
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