[Bug 102045] Kernel oops in mock_sefltests

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102045

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 3ec0af7f223bab9503c4ed57d00ed34b137df476
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Aug 9 17:39:30 2017 +0100

    drm/i915: Supply the engine-id for our mock_engine()

    In the original selftest, we didn't care what the engine->id was, just
    that it could uniquely identify it. Later though, we started tracking
    the mock engines in the fixed size arrays around the drm_i915_private and
    so we now require their indices to be correct. This becomes an issue when
    using the standalone harness which runs all available tests at module load,
    and so we quickly assign an out-of-bounds index to an engine as we
    reallocate the mock GEM device between tests. It doesn't show up in
    igt/drv_selftest as that runs each subtest individually.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102045
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20170809163930.26470-1-chris@chris-wilson.co.uk
    Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>

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