[Bug 72742] [ILK/HSW]igt/gem_tiled_swapping randomly causes OOM killer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72742

--- Comment #84 from lu hua <huax.lu at intel.com> ---
Created attachment 99462
  --> https://bugs.freedesktop.org/attachment.cgi?id=99462&action=edit
dmesg(ceabbb)

(In reply to comment #83)
> 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>

Test this commit, It still fails with OOM killer.
output:
IGT-Version: 1.6-g737d248 (x86_64) (Linux: 3.14.0_kcloud_ceabbb_20140521+
x86_64)
Using 8169 1MiB objects (available RAM: 7510/7670, swap: 1999)
Killed

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