Re: ✗ Fi.CI.IGT: failure for Default request/fence expiry + watchdog (rev3)

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On 19/03/2021 01:17, Patchwork wrote:

Okay with 20s default expiration the hangcheck tests on Tigerlake pass and we are left with these failures:

      IGT changes


        Possible regressions

  *

    igt@gem_ctx_ringsize@idle@bcs0:

      o shard-skl: PASS
        <https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9870/shard-skl10/igt@gem_ctx_ringsize@idle@xxxxxxxxx>
        -> INCOMPLETE
        <https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19806/shard-skl7/igt@gem_ctx_ringsize@idle@xxxxxxxxx>

Too many runnable requests on a slow Skylake SKU with command parsing active. Too many to finish withing the 20s default expiration that is. This is actually the same root cause as the below tests tries to explicitly demonstrate:

  *

    {igt@gem_watchdog@far-fence@bcs0} (NEW):

      o shard-glk: NOTRUN -> FAIL
        <https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19806/shard-glk7/igt@gem_watchdog@far-fence@xxxxxxxxx>
  *

    {igt@gem_watchdog@far-fence@vcs0} (NEW):

      o shard-apl: NOTRUN -> FAIL
        <https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19806/shard-apl1/igt@gem_watchdog@far-fence@xxxxxxxxx>
        +2 similar issues
  *

    {igt@gem_watchdog@far-fence@vecs0} (NEW):

      o shard-kbl: NOTRUN -> FAIL
        <https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19806/shard-kbl7/igt@gem_watchdog@far-fence@xxxxxxxxxx>
        +2 similar issues

The vulnerability default expiration adds compared to the current state is applicable to heaviliy loaded systems where GPU is shared between multiple clients.

Otherwise series seems to work. Failing tests can be blacklisted going forward. Ack to merge and merge itself, after review, I leave to maintainers since personally I am not supportive of this mechanism.

Regards,

Tvrtko
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