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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][SHARDS] igt@i915_selftest@mock_vma - dmesg-warn - INFO: task kworker/u8:1:41 blocked for more than 61 seconds"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111874">111874</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CI][SHARDS] igt@i915_selftest@mock_vma - dmesg-warn - INFO: task kworker/u8:1:41 blocked for more than 61 seconds
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>not set
</td>
</tr>
<tr>
<th>Priority</th>
<td>not set
</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>lakshminarayana.vudum@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>
<p>
<div>
<pre><a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6977/shard-skl10/igt@i915_selftest@mock_vma.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6977/shard-skl10/igt@i915_selftest@mock_vma.html</a>
<6> [175.769812] [IGT] i915_selftest: executing
<6> [175.876941] [IGT] i915_selftest: starting subtest mock_vma
<5> [176.482792] Setting dangerous option mock_selftests - tainting kernel
<6> [176.793104] i915: Performing mock selftests with st_random_seed=0xc8486f6
st_timeout=1000
<6> [176.793131] i915: Running vma
<7> [176.808975] mock: [drm:intel_uc_init_early [i915]] enable_guc=0 (guc:no
submission:no huc:no)
<7> [176.821675] [drm:intel_engines_driver_register [i915]] renamed mock to
rcs0
<6> [176.828858] i915: Running i915_vma_mock_selftests/igt_vma_create
<7> [177.836614] igt_vma_create timed out: after 2 objects in 673 contexts
<6> [177.856652] i915: Running i915_vma_mock_selftests/igt_vma_pin1
<6> [177.858834] i915: Running i915_vma_mock_selftests/igt_vma_rotate_remap
<6> [212.605198] i915: Running i915_vma_mock_selftests/igt_vma_partial
<3> [248.622185] INFO: task kworker/u8:1:41 blocked for more than 61 seconds.
<3> [248.622427] Tainted: G U W 5.4.0-rc1-CI-CI_DRM_6977+ #1
<3> [248.622556] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
<6> [248.622702] kworker/u8:1 D12472 41 2 0x80004000
<6> [248.623147] Workqueue: mock contexts_free_worker [i915]
<4> [248.623381] Call Trace:
<4> [248.623453] ? __schedule+0x2ef/0x7f0
<4> [248.623526] schedule+0x34/0xc0
<4> [248.623555] schedule_preempt_disabled+0xf/0x20
<4> [248.623581] __mutex_lock+0x286/0x9d0
<4> [248.623611] ? __lock_acquire+0x460/0x15d0
<4> [248.624128] ? contexts_free_worker+0x20/0xa0 [i915]
<4> [248.624775] ? contexts_free_worker+0x20/0xa0 [i915]
<4> [248.625235] contexts_free_worker+0x20/0xa0 [i915]
<4> [248.625358] process_one_work+0x26a/0x620
<4> [248.625437] worker_thread+0x37/0x380
<4> [248.625485] ? process_one_work+0x620/0x620
<4> [248.625512] kthread+0x119/0x130
<4> [248.625543] ? kthread_park+0x80/0x80
<4> [248.625585] ret_from_fork+0x3a/0x50
<4> [248.625728]
Showing all locks held in the system:
<4> [248.625761] 1 lock held by khungtaskd/34:
<4> [248.625778] #0: ffffffff822479a0 (rcu_read_lock){....}, at:
debug_show_all_locks+0xe/0x1a0
<4> [248.625834] 3 locks held by kworker/u8:1/41:
<4> [248.625850] #0: ffff88816b134e70 ((wq_completion)mock){+.+.}, at:
process_one_work+0x1de/0x620
<4> [248.625968] #1: ffffc90000187e78
((work_completion)(&i915->contexts.free_work)){+.+.}, at:
process_one_work+0x1de/0x620
<4> [248.626010] #2: ffff88816e490a40 (&dev->struct_mutex){+.+.}, at:
contexts_free_worker+0x20/0xa0 [i915]
<4> [248.626511] 3 locks held by kworker/1:1H/233:
<4> [248.626534] 1 lock held by in:imklog/397:
<4> [248.626562] 3 locks held by dmesg/1034:
<4> [248.626582] 1 lock held by igt_runner/1051:
<4> [248.626602] 2 locks held by i915_selftest/1173:
<4> [248.626620]</pre>
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