Bug 110519

Summary: [CI][SHARDS] igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !"GPU hung"
Product: DRI Reporter: Martin Peres <martin.peres>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: RESOLVED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: high CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: ALL i915 features: GEM/Other

Description Martin Peres 2019-04-26 06:18:18 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-apl3/igt@gem_exec_schedule@semaphore-resolve.html

Starting subtest: semaphore-resolve
(gem_exec_schedule:1877) igt_aux-CRITICAL: Test assertion failure function sig_abort, file ../lib/igt_aux.c:501:
(gem_exec_schedule:1877) igt_aux-CRITICAL: Failed assertion: !"GPU hung"
Comment 1 CI Bug Log 2019-04-26 06:18:55 UTC 
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* All machines: igt@gem_exec_schedule@semaphore-resolve - fail - Failed assertion: !&quot;GPU hung&quot;
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2903/shard-apl1/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2903/shard-glk2/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2903/shard-iclb6/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2903/shard-kbl1/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-apl3/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-glk8/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-iclb7/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-kbl6/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4966/shard-skl1/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2919/shard-apl5/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2919/shard-glk1/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2919/shard-iclb8/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2919/shard-kbl1/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6000/shard-apl8/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6000/shard-glk2/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6000/shard-iclb3/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6000/shard-kbl3/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6000/shard-skl7/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2920/shard-apl8/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2920/shard-glk9/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2920/shard-iclb4/igt@gem_exec_schedule@semaphore-resolve.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_2920/shard-kbl3/igt@gem_exec_schedule@semaphore-resolve.html
Comment 3 Francesco Balestrieri 2019-06-03 05:35:26 UTC 
The patch that fixes this is getting closer, only 9 to go...
Comment 4 Jani Saarinen 2019-06-03 15:03:53 UTC 
What 9? CI runs or what? 
This also seen https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6179/re-icl-u/igt@gem_exec_schedule@semaphore-resolve.html but good if this is already in pipeline.
Comment 5 Chris Wilson 2019-06-03 15:05:28 UTC 
Patches to go.
Comment 6 Martin Peres 2019-06-17 05:32:41 UTC 
(In reply to Chris Wilson from comment #5)
> Patches to go.

Can this explain why we are now failing with dmesg-fail? See https://bugs.freedesktop.org/show_bug.cgi?id=110927
Comment 7 Chris Wilson 2019-06-20 18:11:11 UTC 
commit 8ee36e048c98d4015804a23f884be2576f778a93 (HEAD -> drm-intel-next-queued, drm-intel/for-linux-next, drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Jun 20 15:20:52 2019 +0100

    drm/i915/execlists: Minimalistic timeslicing
    
    If we have multiple contexts of equal priority pending execution,
    activate a timer to demote the currently executing context in favour of
    the next in the queue when that timeslice expires. This enforces
    fairness between contexts (so long as they allow preemption -- forced
    preemption, in the future, will kick those who do not obey) and allows
    us to avoid userspace blocking forward progress with e.g. unbounded
    MI_SEMAPHORE_WAIT.
    
    For the starting point here, we use the jiffie as our timeslice so that
    we should be reasonably efficient wrt frequent CPU wakeups.
    
    Testcase: igt/gem_exec_scheduler/semaphore-resolve
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2-chris@chris-wilson.co.uk
Comment 8 Martin Peres 2019-07-02 11:42:52 UTC 
(In reply to Chris Wilson from comment #7)
> commit 8ee36e048c98d4015804a23f884be2576f778a93 (HEAD ->
> drm-intel-next-queued, drm-intel/for-linux-next,
> drm-intel/drm-intel-next-queued)
> Author: Chris Wilson <chris@chris-wilson.co.uk>
> Date:   Thu Jun 20 15:20:52 2019 +0100
> 
>     drm/i915/execlists: Minimalistic timeslicing
>     
>     If we have multiple contexts of equal priority pending execution,
>     activate a timer to demote the currently executing context in favour of
>     the next in the queue when that timeslice expires. This enforces
>     fairness between contexts (so long as they allow preemption -- forced
>     preemption, in the future, will kick those who do not obey) and allows
>     us to avoid userspace blocking forward progress with e.g. unbounded
>     MI_SEMAPHORE_WAIT.
>     
>     For the starting point here, we use the jiffie as our timeslice so that
>     we should be reasonably efficient wrt frequent CPU wakeups.
>     
>     Testcase: igt/gem_exec_scheduler/semaphore-resolve
>     Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
>     Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
>     Link:
> https://patchwork.freedesktop.org/patch/msgid/20190620142052.19311-2-
> chris@chris-wilson.co.uk

Thanks, it definitely did the trick!
Comment 9 CI Bug Log 2019-07-02 11:43:02 UTC 
The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.

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