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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI] igt@drv_selftest@live_hangcheck - dmesg-fail - Failed to switch back to kernel context; declaring wedged"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106947">106947</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CI] igt@drv_selftest@live_hangcheck - dmesg-fail - Failed to switch back to kernel context; declaring wedged
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg 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>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</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>martin.peres@free.fr
</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_4325/shard-glk1/igt@drv_selftest@live_hangcheck.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4325/shard-glk1/igt@drv_selftest@live_hangcheck.html</a>
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4326/shard-kbl2/igt@drv_selftest@live_hangcheck.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4326/shard-kbl2/igt@drv_selftest@live_hangcheck.html</a>
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4325/shard-apl2/igt@drv_selftest@live_hangcheck.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4325/shard-apl2/igt@drv_selftest@live_hangcheck.html</a>
[ 437.351731] Failed to switch back to kernel context; declaring wedged
[ 437.397965] WARNING: CPU: 2 PID: 24 at kernel/workqueue.c:1384
__queue_work+0x478/0x610
[ 437.397983] Modules linked in: i915(+) snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal coretemp
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel lpc_ich snd_hda_codec
snd_hwdep snd_hda_core r8169 pinctrl_broxton pinctrl_intel snd_pcm mei_me mii
prime_numbers mei [last unloaded: i915]
[ 437.398058] CPU: 2 PID: 24 Comm: ksoftirqd/2 Tainted: G U
4.17.0-rc7-CI-CI_DRM_4325+ #1
[ 437.398062] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0049.2018.0508.1356
05/08/2018
[ 437.398067] RIP: 0010:__queue_work+0x478/0x610
[ 437.398071] RSP: 0018:ffffc900000f7d90 EFLAGS: 00010006
[ 437.398077] RAX: 0000000080000100 RBX: ffff880267ec90f0 RCX:
0000000000000101
[ 437.398080] RDX: 0000000080000101 RSI: 0000000000000000 RDI:
00000000ffffffff
[ 437.398084] RBP: 0000000000000202 R08: 0000000000000000 R09:
0000000000000001
[ 437.398087] R10: ffffc900000f7d90 R11: 0000000000000000 R12:
ffff8802723853e8
[ 437.398090] R13: 0000000000000010 R14: 0000000000000010 R15:
ffff8802609b4650
[ 437.398094] FS: 0000000000000000(0000) GS:ffff88027fd00000(0000)
knlGS:0000000000000000
[ 437.398098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 437.398101] CR2: 00007efd5e8aace0 CR3: 000000026ce8e000 CR4:
00000000003406e0
[ 437.398104] Call Trace:
[ 437.398116] queue_work_on+0x60/0x70
[ 437.398222] ? i915_gem_free_object+0x110/0x110 [i915]
[ 437.398228] rcu_process_callbacks+0x211/0x710
[ 437.398239] ? smpboot_thread_fn+0x6b/0x280
[ 437.398246] __do_softirq+0xc1/0x4e1
[ 437.398255] ? smpboot_thread_fn+0x23/0x280
[ 437.398260] ? smpboot_thread_fn+0x6b/0x280
[ 437.398266] run_ksoftirqd+0x1d/0x40
[ 437.398270] smpboot_thread_fn+0x1d3/0x280
[ 437.398278] ? sort_range+0x20/0x20
[ 437.398282] kthread+0x119/0x130
[ 437.398287] ? kthread_flush_work_fn+0x10/0x10
[ 437.398295] ret_from_fork+0x3a/0x50
[ 437.398310] Code: e8 a0 e2 f5 ff e9 da fc ff ff 65 8b 05 22 17 f7 7e a9 00
01 1f 00 75 13 65 48 8b 3c 25 c0 4e 01 00 f6 47 24 20 0f 85 9f 00 00 00 <0f> 0b
48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 0b e9 cd
[ 437.398495] irq event stamp: 2638727
[ 437.398500] hardirqs last enabled at (2638726): [<ffffffff81930bec>]
_raw_spin_unlock_irqrestore+0x4c/0x60
[ 437.398505] hardirqs last disabled at (2638727): [<ffffffff810a38f9>]
queue_work_on+0x19/0x70
[ 437.398509] softirqs last enabled at (2638710): [<ffffffff81c0032b>]
__do_softirq+0x32b/0x4e1
[ 437.398514] softirqs last disabled at (2638715): [<ffffffff8108c20d>]
run_ksoftirqd+0x1d/0x40
[ 437.398519] WARNING: CPU: 2 PID: 24 at kernel/workqueue.c:1384
__queue_work+0x478/0x610
[ 437.398522] ---[ end trace 0cb69487f9c90dbd ]---</pre>
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