Re: [PATCH v2 0/2] Disable Android low memory killer

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On Mon, Sep 29, 2014 at 01:34:29PM +0100, tim.gore@xxxxxxxxx wrote:
> From: Tim Gore <tim.gore@xxxxxxxxx>
> 
> For some tests that put pressure on memory, the Android
> lowmemorykiller needs to be disabled for the test to run to
> completion. The first patch is a simple bit of preparation
> to ensure that all (well written) "simple" tests exit via a
> call to igt_exit, in the same way as tests with subtests do.
> This is to make sure we can clean up by re-enabling the
> lowmemorykiller.
> The second patch is to disable the Android lowmemorykiller
> during the common initialisation code (in oom_adjust_for_doom
> to be exact) and to re-enstate it in igt_exit.
> 
> v1: As above
> 
> v2: Remove the call to disable the lowmemorykiller from
>     oom_adjust_for_doom. lowmemorykiller is not disabled
>     by default now; it is up to each individual test to
>     call low_mem_killer_disable() if it needs to.

See my late replies (I was off for an extended w/e). Summary:
- I think we should just do this unconditionally since it's a hack and
  pointless to burden tests with it.
- proper exit handler and you can gc patch 1.

Cheers, Daniel
> 
> Tim Gore (2):
>   lib/igt_core: make single/simple tests use igt_exit
>   lib/igt_core.c: add function to disable lowmemorykiller
> 
>  lib/igt_core.c         | 79 +++++++++++++++++++++++++++++++++++++++++++++++---
>  lib/igt_core.h         |  2 +-
>  tests/igt_simulation.c |  2 +-
>  3 files changed, 77 insertions(+), 6 deletions(-)
> 
> -- 
> 2.1.1
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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