Re: [PATCH i-g-t v3] tests/gem_ringfill: Add {render, blitter}-forked-1 subtests.

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Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:

> On Fri, Jun 26, 2015 at 02:52:34PM +0300, Joonas Lahtinen wrote:
>> Add forking subtests to gem_ringfill. Tests cause consistent GPU
>> hangs on SKL.
>> 
>> v2: Removed noop parts.
>> v3:
>> - Allow executing the tests in order too (Chris Wilson).
>> - Rename the tests to -forked-1
>> 
>> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
>> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89959
>
> I extended the test to cover the forked-N case and found that we shared
> the first batch handle (due to creating the intel_batch_buffer in the
> parent). Fixed that up and pushed, hopefully it still causes SKL to die
> horribly.

It does, very well. And has already helped to isolate the blitter
ctx switches out from the pool of suspects. Thanks for the test
and pushing it.
-Mika

> -Chris
>
> -- 
> Chris Wilson, Intel Open Source Technology Centre
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