[igt-dev] [PATCH i-g-t] intel-ci: Delegate exhaustive fault-injection to the idle runs

[Martin Peres]

On 04/02/2020 13:48, Chris Wilson wrote:
> i915_module_reload/fault-injection is valuable for its exhaustive trawl
> through (hopefully) every path that hits i915_probe_error, unfortunately
> such thoroughness comes at a cost. On kbl-guc, it takes almost 3minutes,
> and on tgl-y takes over 4 minutes, which is unacceptable for BAT, so leave
> it to the shards and idle runs to catch unusual errors on module load.
> 
> v2: remove blacklisting to allow module-reload in shards.
> 
> Tomi prefers not to have to manually create a runlist for the idle-runs,
> so let's take a risk by allowing the module-reload within the shards.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Martin Peres <martin.peres at linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Petri Latvala <petri.latvala at intel.com>
> Cc: Tomi Sarvela <tomi.p.sarvela at intel.com>

I think this is the right call! Thanks for doing it :)

Acked-by: Martin Peres <martin.peres at linux.intel.com>

Martin

> ---
>  tests/intel-ci/blacklist.txt          | 2 +-
>  tests/intel-ci/fast-feedback.testlist | 2 --
>  2 files changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/tests/intel-ci/blacklist.txt b/tests/intel-ci/blacklist.txt
> index 723f24457..181c8cd5f 100644
> --- a/tests/intel-ci/blacklist.txt
> +++ b/tests/intel-ci/blacklist.txt
> @@ -12,7 +12,7 @@ igt at drm_mm(@.*)?
>  # self-contained tests, leading to random
>  # failures in tests run afterwards.
>  ###############################################
> -igt at i915_module_load(@.*)?
> +#igt at i915_module_load(@.*)? # danger, danger; hope for taints!
>  igt at i915_pm_rpm@module-reload
>  igt at i915_pm_rpm@gem-execbuf-stress-extra-wait
>  ###############################################
> diff --git a/tests/intel-ci/fast-feedback.testlist b/tests/intel-ci/fast-feedback.testlist
> index 40d273c1d..467e11267 100644
> --- a/tests/intel-ci/fast-feedback.testlist
> +++ b/tests/intel-ci/fast-feedback.testlist
> @@ -172,6 +172,4 @@ igt at vgem_basic@sysfs
>  
>  igt at vgem_basic@unload
>  igt at i915_module_load@reload
> -igt at i915_module_load@reload-no-display
> -igt at i915_module_load@reload-with-fault-injection
>  igt at i915_pm_rpm@module-reload
>