[Bug 106947] New: [CI] igt at drv_selftest@live_hangcheck - dmesg-fail - Failed to switch back to kernel context; declaring wedged

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106947

            Bug ID: 106947
           Summary: [CI] igt at drv_selftest@live_hangcheck - dmesg-fail -
                    Failed to switch back to kernel context; declaring
                    wedged
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

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_4326/shard-kbl2/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

[  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 ]---

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