[Bug 111144] [CI][SHARDS] igt at i915_selftest@live_hangcheck - dmesg-fail - kthread for other engine bcs0 failed, err=-5

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111144

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to CI Bug Log from comment #2)
> A CI Bug Log filter associated to this bug has been updated:
> 
> {- ICL: igt at i915_selftest@live_hangcheck - dmesg-fail - kthread for other
> engine bcs0 failed, err=-5 -}
> {+ ICL: igt at i915_selftest@live_hangcheck - dmesg-fail - kthread for other
> engine (vecs|bcs0) failed, err=-5 +}
> 
> New failures caught by the filter:
> 
>   *
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6491/fi-icl-u3/
> igt at i915_selftest@live_hangcheck.html

This looks like a different bug:

<7> [633.865426] __intel_gt_set_wedged vecs0
<7> [633.865427] __intel_gt_set_wedged  Awake? 17
<7> [633.865429] __intel_gt_set_wedged  Hangcheck: 5585 ms ago
<7> [633.865430] __intel_gt_set_wedged  Reset count: 4715 (global 23)
<7> [633.865432] __intel_gt_set_wedged  Requests:
<7> [633.867108] __intel_gt_set_wedged  RING_START: 0x00000000
<7> [633.867942] __intel_gt_set_wedged  RING_HEAD:  0x00000000
<7> [633.868793] __intel_gt_set_wedged  RING_TAIL:  0x00000000
<7> [633.868830] __intel_gt_set_wedged  RING_CTL:   0x00000000
<7> [633.869601] __intel_gt_set_wedged  RING_MODE:  0x00000200 [idle]
<7> [633.869612] __intel_gt_set_wedged  RING_IMR: 00000000
<7> [633.869736] __intel_gt_set_wedged  ACTHD:  0x00000000_00000000
<7> [633.871397] __intel_gt_set_wedged  BBADDR: 0x00000000_00000000
<7> [633.873097] __intel_gt_set_wedged  DMA_FADDR: 0x00000000_00000000
<7> [633.873104] __intel_gt_set_wedged  IPEIR: 0x00000000
<7> [633.873108] __intel_gt_set_wedged  IPEHR: 0x00000000
<7> [633.874792] __intel_gt_set_wedged  Execlist status: 0x00000001 00000000,
entries 12
<7> [633.874793] __intel_gt_set_wedged  Execlist CSB read 9, write 9, tasklet
queued? no (enabled)
<7> [633.874810] __intel_gt_set_wedged          Active[0: ring:{start:001b2000,
hwsp:fedf9240, seqno:0000006b}, rq:  1ba1f:6c*  prio=1027 @ 5532ms: [i915]
<7> [633.874825] __intel_gt_set_wedged          Active[1: ring:{start:002d5000,
hwsp:fedf9c40, seqno:00000016}, rq:  1ba47:18-  prio=79 @ 5531ms:
igt/vecs0[5103]
<7> [633.874829] __intel_gt_set_wedged          E  1ba1f:6c*  prio=1027 @
5532ms: [i915]
<7> [633.874831] __intel_gt_set_wedged          E  1ba47:18-  prio=79 @ 5531ms:
igt/vecs0[5103]
<7> [633.874833] __intel_gt_set_wedged          Queue priority hint: 431
<7> [633.874836] __intel_gt_set_wedged          Q  1ba42:1a  prio=431 @ 5530ms:
igt/vecs0[5103]
<7> [633.874839] __intel_gt_set_wedged          Q  1ba3c:1a  prio=367 @ 5530ms:
igt/vecs0[5103]
<7> [633.874842] __intel_gt_set_wedged          Q  1ba45:1a  prio=251 @ 5529ms:
igt/vecs0[5103]
<7> [633.874844] __intel_gt_set_wedged          Q  1ba39:1a  prio=235 @ 5530ms:
igt/vecs0[5103]
<7> [633.874847] __intel_gt_set_wedged          Q  1ba46:1a  prio=159 @ 5529ms:
igt/vecs0[5103]
<7> [633.874849] __intel_gt_set_wedged          Q  1ba3f:1a  prio=143 @ 5530ms:
igt/vecs0[5103]
<7> [633.874852] __intel_gt_set_wedged          Q  1ba35:1a  prio=107 @ 5530ms:
igt/vecs0[5103]
<7> [633.874854] __intel_gt_set_wedged          Q  1ba47:1a  prio=39 @ 5529ms:
igt/vecs0[5103]
<7> [633.874856] __intel_gt_set_wedged HWSP:
<7> [633.874858] __intel_gt_set_wedged [0000] 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
<7> [633.874860] __intel_gt_set_wedged *
<7> [633.874862] __intel_gt_set_wedged [0040] 00000001 40000000 00000014
40000020 00000018 400003c0 00000001 40000000
<7> [633.874865] __intel_gt_set_wedged [0060] 00000014 40000480 00000018
400004e0 00000001 40000000 00000018 40000500
<7> [633.874867] __intel_gt_set_wedged [0080] 00000001 40000000 00008002
40000020 00000018 400004e0 00000001 40000000
<7> [633.874869] __intel_gt_set_wedged [00a0] 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000009
<7> [633.874871] __intel_gt_set_wedged [00c0] 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
<7> [633.874873] __intel_gt_set_wedged *
<7> [633.874877] __intel_gt_set_wedged Idle? no
<7> [633.874879] __intel_gt_set_wedged Signals:
<7> [633.874891] __intel_gt_set_wedged  [1ba47:18] @ 5531ms

All the registers are zero, same symptoms as a powergating bug from gen9.

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