[Bug 90400] [KBL APL SKL BSW BDW]igt/gem_ppgtt/flink-and-close-vma-leak fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90400

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

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

--- Comment #17 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit b1f788c6acb2f34622dd5f4c3d5210c6e3945e78
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Aug 4 07:52:45 2016 +0100

    drm/i915: Release vma when the handle is closed

    In order to prevent a leak of the vma on shared objects, we need to
    hook into the object_close callback to destroy the vma on the object for
    this file. However, if we destroyed that vma immediately we may cause
    unexpected application stalls as we try to unbind a busy vma - hence we
    defer the unbind to when we retire the vma.

    v2: Keep vma allocated until closed. This is useful for a later
    optimisation, but it is required now in order to handle potential
    recursion of i915_vma_unbind() by retiring itself.
    v3: Comments are important.

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