Bug 111374

The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* BYT HSW: igt@gem_exec_schedule@independent-blt - fail - Failed assertion: !"GPU hung"
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4692/shard-hsw6/igt@gem_exec_schedule@independent-blt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4713/shard-hsw7/igt@gem_exec_schedule@independent-blt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_340/fi-byt-j1900/igt@gem_exec_schedule@independent-blt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_340/fi-byt-n2820/igt@gem_exec_schedule@independent-blt.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6677/shard-hsw7/igt@gem_exec_schedule@independent-blt.html

Hmm, bcs0 dropped to less than 1k available in its ring so would be stalling waiting for some space before letting the client continue. Key question would be why this is sporadic? Maybe it depends on how much space we waste on ring wrap, that sounds highly probable. I think we just need to tweak measure_ring_space.

A CI Bug Log filter associated to this bug has been updated:

{- BYT HSW: igt@gem_exec_schedule@independent-blt - fail - Failed assertion: !"GPU hung" -}
{+ BYT HSW: igt@gem_exec_schedule@(independent-blt|fifo-blt)  - fail - Failed assertion: !"GPU hung" +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_341/fi-byt-j1900/igt@gem_exec_schedule@fifo-blt.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_341/fi-byt-n2820/igt@gem_exec_schedule@fifo-blt.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_340/fi-byt-j1900/igt@gem_exec_schedule@fifo-blt.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_340/fi-byt-n2820/igt@gem_exec_schedule@fifo-blt.html

commit a49a3a6cdbc4949c0ae8df5f3d8c3e476aefdea1 (HEAD, upstream/master)
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Aug 12 11:30:28 2019 +0100

    lib/i915: Trim ring measurement by one
    
    Be a little more conservative in our ring measurement and exclude one
    batch to leave room in case our user needs to wrap (where a request will
    be expanded to cover the unused space at the end of the ring).
    
    References: https://bugs.freedesktop.org/show_bug.cgi?id=111374
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

Hopefully.

A CI Bug Log filter associated to this bug has been updated:

{- BYT HSW: igt@gem_exec_schedule@(independent-blt|fifo-blt)  - fail - Failed assertion: !"GPU hung" -}
{+ BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-blt)  - fail - Failed assertion: !"GPU hung" +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5129/shard-hsw5/igt@gem_exec_schedule@independent-bsd.html

A CI Bug Log filter associated to this bug has been updated:

{- BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-blt)  - fail - Failed assertion: !"GPU hung" -}
{+ BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-blt)  - fail - Failed assertion: !"GPU hung" +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5130/shard-hsw4/igt@gem_exec_schedule@fifo-bsd.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6695/shard-hsw5/igt@gem_exec_schedule@fifo-bsd.html

A CI Bug Log filter associated to this bug has been updated:

{- BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-blt)  - fail - Failed assertion: !"GPU hung" -}
{+ BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-(blt|bsd))  - fail - Failed assertion: !"GPU hung" +}


  No new failures caught with the new filter

A CI Bug Log filter associated to this bug has been updated:

{- BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-(blt|bsd))  - fail - Failed assertion: !"GPU hung" -}
{+ BYT HSW: igt@gem_exec_schedule@(independent-(bsd|blt)|fifo-(blt|bsd))|igt@gem_exec_schedule@fifo-vebox  - fail - Failed assertion: !"GPU hung" +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6696/shard-hsw1/igt@gem_exec_schedule@fifo-vebox.html