[Bug 76614] [Bisected]igt/gem_cs_prefetch fails with OOM killer on debug kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76614

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

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

--- Comment #12 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit ceabbba524fb43989875f66a6c06d7ce0410fe5c
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Mar 25 13:23:04 2014 +0000

    drm/i915: Include bound and active pages in the count of shrinkable objects

    When the machine is under a lot of memory pressure and being stressed by
    multiple GPU threads, we quite often report fewer than shrinker->batch
    (i.e. SHRINK_BATCH) pages to be freed. This causes the shrink_control to
    skip calling into i915.ko to release pages, despite the GPU holding onto
    most of the physical pages in its active lists.

    References: https://bugs.freedesktop.org/show_bug.cgi?id=72742
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Robert Beckett <robert.beckett at intel.com>
    Reviewed-by: Rafael Barbalho <rafael.barbalho at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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