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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 - [CI][DRMTIP] igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes - dmesg-warn- WARNING: possible circular locking dependency detected/(&dev->struct_mutex)/(&mm->mmap_sem)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109956">109956</a>
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<th>Summary</th>
<td>[CI][DRMTIP] igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes - dmesg-warn- WARNING: possible circular locking dependency detected/(&dev->struct_mutex)/(&mm->mmap_sem)
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<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>lakshminarayana.vudum@intel.com
</td>
</tr>
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<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>
<p>
<div>
<pre><a href="https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_216/fi-bsw-n3050/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html">https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_216/fi-bsw-n3050/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html</a>
<4> [61.382525] ======================================================
<4> [61.382528] WARNING: possible circular locking dependency detected
<4> [61.382532] 5.0.0-rc5-g041ba1d6aa0f-drmtip_216+ #1 Tainted: G U
<4> [61.382535] ------------------------------------------------------
<4> [61.382538] kms_plane/1072 is trying to acquire lock:
<4> [61.382542] 00000000e7bea55b (&dev->struct_mutex){+.+.}, at:
i915_gem_fault+0x1f8/0x850 [i915]
<4> [61.382656]
but task is already holding lock:
<4> [61.382658] 00000000c73dd26a (&mm->mmap_sem){++++}, at:
__do_page_fault+0x133/0x500
<4> [61.382668]
which lock already depends on the new lock.</pre>
</div>
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