[Intel-gfx] [igt-dev] [PATCH i-g-t] tests/gem_eio: Never re-use contexts which were in the middle of GPU reset

Chris Wilson chris at chris-wilson.co.uk
Tue Mar 27 19:49:45 UTC 2018

Quoting Tvrtko Ursulin (2018-03-27 17:40:56)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Contexts executing when reset triggers are potentialy corrupt so trying to
> use them from a subsequent test (like the default context) can hang the
> GPU or even the driver.
> Workaround that by always creating a dedicated context which will be
> running when GPU reset happens.

Hmm, what CI won't say until it gets around to running on the shards
(i.e. post merge) is that the !contexts tests are expected to pass on
the older gen. This patch will now fail in gem_context_create().

I was only half jokingly suggesting reopen_device().

As CI is only running each subtest individually, I don't think we are
exposed to the issue, that should give us a bit of time to hopefully fix
it. So back to the perplexing puzzle.

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